Great Falls (United States of America) weather
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Forecast days
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Today. Maximum daytime temperature: -6 degrees Celsius; Minimum nighttime temperature: -12 degrees Celsius. Cloudy. Sunrise: 07:48; Sunset: 16:38. UV: Low;
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Tuesday 29 November. Maximum daytime temperature: -9 degrees Celsius; Minimum nighttime temperature: -12 degrees Celsius. Overcast. Sunrise: 07:49; Sunset: 16:37. UV: Low;
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Wednesday 30 November. Maximum daytime temperature: -4 degrees Celsius; Minimum nighttime temperature: -7 degrees Celsius. Cloudy. Sunrise: 07:51; Sunset: 16:37. UV: Low;
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Thursday 1 December. Maximum daytime temperature: 2 degrees Celsius; Minimum nighttime temperature: -13 degrees Celsius. Cloudy changing to light snow by nighttime. Sunrise: 07:52; Sunset: 16:36. UV: Low;
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Friday 2 December. Maximum daytime temperature: -11 degrees Celsius; Minimum nighttime temperature: -16 degrees Celsius. Light snow changing to sunny intervals by lunchtime. Sunrise: 07:53; Sunset: 16:36. UV: Low;
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Saturday 3 December. Maximum daytime temperature: 0 degrees Celsius; Minimum nighttime temperature: -8 degrees Celsius. Partly cloudy changing to sunny intervals by late morning. Sunrise: 07:54; Sunset: 16:35. UV: Low;
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Sunday 4 December. Maximum daytime temperature: -1 degrees Celsius; Minimum nighttime temperature: -13 degrees Celsius. Clear. Sunrise: 07:55; Sunset: 16:35. UV: Low;
Seven day forecast for Great Falls
| Time | 06:00 | 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | 20:00 | 21:00 | 22:00 | 23:00 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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Chance of precipitation
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<5% | 20% | 20% | 20% | 10% | 10% | 10% | 10% | 10% | 10% | 10% | 10% | 10% | 10% | 10% | 10% | 10% | 10% |
|
|
-6°
|
-6°
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-6°
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-7°
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-8°
|
-8°
|
-9°
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-9°
|
-10°
|
-10°
|
-9°
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-9°
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-10°
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-10°
|
-10°
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-10°
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-10°
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-11°
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-10° | -11° | -12° | -13° | -14° | -14° | -14° | -15° | -15° | -15° | -16° | -15° | -16° | -16° | -17° | -17° | -17° | -17° |
|
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NW
11
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N
13
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N
15
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N
14
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N
14
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N
13
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N
13
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N
13
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N
13
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N
13
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N
13
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N
13
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N
13
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N
13
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N
13
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N
13
|
N
12
|
N
12
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|
|
18 | 21 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 |
|
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VG | G | G | G | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG |
|
Humidity
|
64% | 66% | 68% | 63% | 59% | 55% | 53% | 50% | 48% | 49% | 51% | 52% | 54% | 56% | 58% | 59% | 60% | 60% |
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UV
|
- | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | - | - | - | - | - | - |
| Time | 00:00 | 01:00 | 02:00 | 03:00 | 04:00 | 05:00 | 06:00 | 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 20:00 | 23:00 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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Chance of precipitation
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10% | 10% | 10% | 10% | 20% | 20% | 20% | 20% | 20% | 20% | 10% | 10% | 10% | 10% | 10% | 10% | <5% | <5% | 10% | <5% |
|
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-11°
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-10°
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-10°
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-10°
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-10°
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-10°
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-10°
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-10°
|
-9°
|
-10°
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-11°
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-11°
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-12°
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-12°
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-12°
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-12°
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-11°
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-10°
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-11°
|
-11°
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-17° | -17° | -17° | -17° | -17° | -17° | -17° | -16° | -16° | -16° | -16° | -16° | -16° | -16° | -16° | -15° | -14° | -14° | -15° | -15° |
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N
12
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N
13
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N
13
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N
13
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N
12
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N
12
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N
12
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N
12
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NNW
13
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NNW
12
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NNW
11
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NNW
10
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NW
9
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NW
8
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WNW
8
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NW
7
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NNE
6
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ENE
6
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E
9
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E
8
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21 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 19 | 19 | 18 | 17 | 16 | 15 | 13 | 11 | 9 | 13 | 13 |
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VG | G | G | G | G | G | G | G | G | G | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG |
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Humidity
|
61% | 62% | 63% | 63% | 64% | 64% | 63% | 63% | 63% | 59% | 56% | 53% | 51% | 48% | 46% | 47% | 48% | 49% | 55% | 58% |
|
UV
|
- | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | - | - |
| Time | 02:00 | 05:00 | 08:00 | 11:00 | 14:00 | 17:00 | 20:00 | 23:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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Chance of precipitation
|
<5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% |
|
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-10°
|
-10°
|
-9°
|
-9°
|
-7°
|
-5°
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-3°
|
-2°
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-15° | -15° | -13° | -12° | -11° | -8° | -7° | -7° |
|
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E
8
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E
8
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E
9
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E
9
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E
10
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SE
9
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S
12
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SSW
15
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12 | 11 | 13 | 15 | 18 | 14 | 19 | 24 |
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VG | VG | VG | VG | VG | VG | VG | VG |
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Humidity
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62% | 65% | 65% | 47% | 39% | 49% | 54% | 54% |
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UV
|
- | - | 1 | 1 | 1 | - | - | - |
| Time | 02:00 | 05:00 | 08:00 | 11:00 | 14:00 | 17:00 | 20:00 | 23:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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Chance of precipitation
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<5% | 10% | 10% | 10% | 10% | 10% | 20% | 60% |
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-1°
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-1°
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0°
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0°
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-4°
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-5°
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-6°
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-8°
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-6° | -6° | -4° | -3° | -8° | -9° | -11° | -14° |
|
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SSW
15
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SW
13
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SSW
13
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WNW
11
|
NW
13
|
ENE
11
|
NNE
11
|
NNW
12
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24 | 20 | 18 | 17 | 20 | 17 | 18 | 19 |
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VG | VG | VG | VG | VG | VG | G | G |
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Humidity
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54% | 54% | 56% | 49% | 55% | 71% | 75% | 79% |
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UV
|
- | - | 1 | 1 | 1 | - | - | - |
| Time | 02:00 | 05:00 | 08:00 | 11:00 | 14:00 | 17:00 | 20:00 | 23:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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Chance of precipitation
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60% | 60% | 60% | 60% | 20% | 10% | <5% | <5% |
|
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-9°
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-10°
|
-10°
|
-13°
|
-15°
|
-14°
|
-14°
|
-14°
|
|
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-15° | -17° | -17° | -19° | -20° | -19° | -18° | -21° |
|
|
N
12
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NNW
12
|
NNW
13
|
NNW
13
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WNW
11
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WNW
9
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SSW
8
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S
11
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20 | 19 | 19 | 20 | 18 | 13 | 11 | 14 |
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M | M | M | G | G | VG | VG | VG |
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Humidity
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80% | 80% | 82% | 77% | 70% | 72% | 80% | 84% |
|
UV
|
- | - | - | 1 | 1 | - | - | - |
| Time | 02:00 | 05:00 | 08:00 | 11:00 | 14:00 | 17:00 | 20:00 | 23:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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Chance of precipitation
|
<5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% |
|
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-10°
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-8°
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-6°
|
-3°
|
-3°
|
-3°
|
-4°
|
-4°
|
|
|
-16° | -14° | -12° | -9° | -8° | -9° | -9° | -10° |
|
|
WSW
12
|
SW
14
|
SSW
18
|
SW
18
|
SW
17
|
SSW
15
|
SSW
15
|
SSW
14
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|
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17 | 21 | 26 | 28 | 28 | 24 | 23 | 22 |
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VG | VG | VG | VG | VG | VG | VG | VG |
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Humidity
|
76% | 73% | 70% | 62% | 58% | 64% | 65% | 64% |
|
UV
|
- | - | - | 1 | 1 | - | - | - |
| Time | 02:00 | 05:00 | 08:00 | 11:00 | 14:00 |
|---|---|---|---|---|---|
| Weather symbol |
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Chance of precipitation
|
<5% | <5% | <5% | <5% | 10% |
|
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-4°
|
-5°
|
-4°
|
-3°
|
-4°
|
|
|
-10° | -10° | -9° | -7° | -9° |
|
|
SW
14
|
SW
14
|
S
14
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S
15
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NNW
13
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21 | 20 | 21 | 23 | 21 |
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VG | VG | VG | VG | VG |
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Humidity
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65% | 66% | 67% | 61% | 64% |
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UV
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- | - | - | 1 | 1 |
Chance of precipitation represents how likely it is that rain (or other types of precipitation, such as sleet, snow, hail and drizzle) will fall from the sky at a certain time.
This number shows the air temperature for the time period. You can see the temperature in Celsius or Fahrenheit by using the dropdown menu.
Feels like temperature considers other factors, such as wind speed and humidity. This gives you a better idea of how the temperature will actually feel at the time.
Wind gust shows the highest wind speed that you should encounter at that time, as winds peak and lull.
Strong winds are shown in bold for speeds of 29 mph or more.
The arrow shows the direction the wind is blowing. The letters show the direction the wind is blowing from (on a standard 16-point compass).
The number represents the average wind speed expected at that time.
Visibility measures the distance at which an object can be clearly seen.
| VP (Very Poor) | Less than 1 km |
| P (Poor) | 1.1 km to 4 km |
| M (Medium) | 4.1 km to 10 km |
| G (Good) | 10.1 km to 20 km |
| VG (Very Good) | 20.1 km to 40 km |
| E (Excellent) | Greater than 40 km |
Humidity is the amount of water vapor in the air. If there is a lot of water vapour, the humidity will be high. The higher the percentage of humidity, the wetter it will feel outside.
UV exposure index and the protection required to help keep you safe:
No risk of UV - It’s safe to stay outside. Low - You can safely stay outside. Consider sunscreen in direct sunlight. Moderate - Take care during midday hours and do not spend too much time in the sun unprotected. Sunscreen advised. High - Seek shade during midday hours, cover up and wear sunscreen. Very high - Spend time in the shade between 11am and 3pm. Shirt, sunscreen and hat are essential. Extreme - Avoid being outside during midday hours. Shirt, sunscreen and hat essential.