Decatur (United States of America) weather
Find a forecast
Forecast days
-
Today. Maximum daytime temperature: 10 degrees Celsius; Minimum nighttime temperature: 2 degrees Celsius. Cloudy. Sunrise: 06:40; Sunset: 19:19. UV: Moderate;Today. Maximum daytime temperature: 10 degrees Celsius; Minimum nighttime temperature: 2 degrees Celsius. Cloudy. Sunrise: 06:40; Sunset: 19:19. UV: Moderate;
-
Sunday 2 April. Maximum daytime temperature: 15 degrees Celsius; Minimum nighttime temperature: 8 degrees Celsius. Sunny intervals changing to partly cloudy by nighttime. Sunrise: 06:38; Sunset: 19:20. UV: High;Sunday 2 April. Maximum daytime temperature: 15 degrees Celsius; Minimum nighttime temperature: 8 degrees Celsius. Sunny intervals changing to partly cloudy by nighttime. Sunrise: 06:38; Sunset: 19:20. UV: High;
-
Monday 3 April. Maximum daytime temperature: 19 degrees Celsius; Minimum nighttime temperature: 12 degrees Celsius. Sunny changing to light showers in the afternoon. Sunrise: 06:37; Sunset: 19:21. UV: Moderate;Monday 3 April. Maximum daytime temperature: 19 degrees Celsius; Minimum nighttime temperature: 12 degrees Celsius. Sunny changing to light showers in the afternoon. Sunrise: 06:37; Sunset: 19:21. UV: Moderate;
-
Tuesday 4 April. Maximum daytime temperature: 23 degrees Celsius; Minimum nighttime temperature: 18 degrees Celsius. Overcast changing to light rain by lunchtime. Sunrise: 06:35; Sunset: 19:22. UV: Moderate;Tuesday 4 April. Maximum daytime temperature: 23 degrees Celsius; Minimum nighttime temperature: 18 degrees Celsius. Overcast changing to light rain by lunchtime. Sunrise: 06:35; Sunset: 19:22. UV: Moderate;
-
Wednesday 5 April. Maximum daytime temperature: 22 degrees Celsius; Minimum nighttime temperature: 4 degrees Celsius. Cloudy changing to light showers by late morning. Sunrise: 06:34; Sunset: 19:23. UV: Moderate;Wednesday 5 April. Maximum daytime temperature: 22 degrees Celsius; Minimum nighttime temperature: 4 degrees Celsius. Cloudy changing to light showers by late morning. Sunrise: 06:34; Sunset: 19:23. UV: Moderate;
-
Thursday 6 April. Maximum daytime temperature: 11 degrees Celsius; Minimum nighttime temperature: 3 degrees Celsius. Sunny intervals changing to cloudy in the afternoon. Sunrise: 06:32; Sunset: 19:24. UV: High;Thursday 6 April. Maximum daytime temperature: 11 degrees Celsius; Minimum nighttime temperature: 3 degrees Celsius. Sunny intervals changing to cloudy in the afternoon. Sunrise: 06:32; Sunset: 19:24. UV: High;
-
Friday 7 April. Maximum daytime temperature: 11 degrees Celsius; Minimum nighttime temperature: 3 degrees Celsius. Cloudy changing to light showers by lunchtime. Sunrise: 06:31; Sunset: 19:25. UV: Moderate;Friday 7 April. Maximum daytime temperature: 11 degrees Celsius; Minimum nighttime temperature: 3 degrees Celsius. Cloudy changing to light showers by lunchtime. Sunrise: 06:31; Sunset: 19:25. UV: Moderate;
Seven day forecast for Decatur
| Time | 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 | 18:00 | 19:00 | 20:00 | 21:00 | 22:00 | 23:00 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbol |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Chance of precipitation
|
<5% | <5% | 10% | 10% | 10% | 10% | 10% | 10% | 10% | 10% | 10% | 10% | 10% | 10% | 10% | 10% | 10% | 10% | 10% | 10% |
|
|
11°
|
9°
|
7°
|
5°
|
5°
|
5°
|
5°
|
5°
|
6°
|
7°
|
7°
|
8°
|
8°
|
8°
|
8°
|
7°
|
7°
|
6°
|
6°
|
5°
|
|
|
8° | 5° | 2° | -1° | -1° | -1° | -1° | 0° | 1° | 2° | 2° | 3° | 4° | 4° | 4° | 4° | 4° | 4° | 4° | 3° |
|
|
SW
17
|
WSW
20
|
WSW
22
|
W
24
|
W
25
|
W
25
|
W
26
|
WNW
25
|
WNW
24
|
WNW
23
|
NW
21
|
NW
19
|
NW
17
|
NW
15
|
NW
13
|
NW
10
|
NNW
9
|
NNW
7
|
NNW
5
|
NNW
5
|
|
|
33 | 37 | 41 | 46 | 47 | 49 | 50 | 49 | 47 | 46 | 42 | 38 | 34 | 29 | 24 | 19 | 16 | 13 | 10 | 8 |
|
|
VG | VG | VG | VG | VG | G | G | G | G | G | G | G | G | G | VG | VG | VG | VG | VG | VG |
|
Humidity
|
59% | 57% | 54% | 52% | 57% | 61% | 65% | 64% | 62% | 60% | 59% | 57% | 56% | 57% | 59% | 60% | 63% | 67% | 70% | 73% |
|
UV
|
- | - | - | 1 | 1 | 2 | 2 | 2 | 3 | 3 | 3 | 2 | 2 | 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 | 18:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbol |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Chance of precipitation
|
<5% | <5% | <5% | 10% | 10% | 10% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | 10% |
|
|
4°
|
4°
|
4°
|
3°
|
3°
|
3°
|
3°
|
2°
|
4°
|
6°
|
8°
|
9°
|
11°
|
12°
|
13°
|
14°
|
15°
|
14°
|
14°
|
13°
|
12°
|
|
|
3° | 3° | 2° | 2° | 1° | 1° | 0° | -1° | 1° | 3° | 4° | 6° | 8° | 9° | 10° | 10° | 11° | 11° | 11° | 10° | 9° |
|
|
NNW
4
|
WNW
3
|
ESE
4
|
SE
4
|
SE
4
|
SE
5
|
SE
6
|
SE
7
|
SSE
8
|
SSE
10
|
SSE
12
|
S
13
|
S
14
|
S
15
|
S
16
|
S
16
|
S
17
|
S
16
|
S
15
|
S
13
|
SSW
13
|
|
|
7 | 5 | 6 | 6 | 7 | 9 | 10 | 12 | 16 | 20 | 24 | 26 | 28 | 30 | 32 | 33 | 34 | 31 | 28 | 24 | 24 |
|
|
VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | G |
|
Humidity
|
76% | 79% | 80% | 81% | 82% | 83% | 83% | 83% | 76% | 68% | 61% | 58% | 54% | 51% | 50% | 48% | 47% | 51% | 55% | 58% | 70% |
|
UV
|
- | - | - | - | - | - | - | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 6 | 4 | 3 | 2 | 1 | 1 | - |
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
|
|
|
|
|
|
|
|
|
Chance of precipitation
|
10% | <5% | <5% | <5% | <5% | 40% | 60% | 40% |
|
|
11°
|
10°
|
8°
|
14°
|
17°
|
18°
|
16°
|
15°
|
|
|
9° | 8° | 7° | 12° | 16° | 16° | 15° | 14° |
|
|
SSW
11
|
SW
8
|
S
4
|
SE
7
|
SE
10
|
SSE
10
|
SE
9
|
SE
8
|
|
|
21 | 13 | 7 | 16 | 21 | 21 | 16 | 16 |
|
|
VG | VG | G | VG | VG | VG | G | G |
|
Humidity
|
77% | 87% | 93% | 77% | 66% | 73% | 84% | 90% |
|
UV
|
- | - | 1 | 3 | 5 | 2 | 1 | - |
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
|
|
|
|
|
|
|
|
|
Chance of precipitation
|
30% | 60% | 30% | 20% | 40% | 40% | 40% | 30% |
|
|
13°
|
13°
|
12°
|
16°
|
20°
|
22°
|
21°
|
21°
|
|
|
12° | 11° | 11° | 14° | 18° | 20° | 19° | 18° |
|
|
NE
8
|
E
10
|
E
10
|
ESE
12
|
SSE
14
|
SSE
16
|
SSE
15
|
S
18
|
|
|
14 | 19 | 20 | 23 | 27 | 30 | 29 | 35 |
|
|
G | M | G | G | G | VG | G | VG |
|
Humidity
|
94% | 95% | 95% | 93% | 87% | 80% | 86% | 86% |
|
UV
|
- | - | 1 | 2 | 4 | 2 | 1 | - |
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
|
|
|
|
|
|
|
|
|
Chance of precipitation
|
40% | 40% | 10% | 40% | 60% | 40% | 10% | 30% |
|
|
20°
|
19°
|
18°
|
18°
|
19°
|
19°
|
16°
|
12°
|
|
|
17° | 16° | 16° | 16° | 16° | 16° | 14° | 10° |
|
|
S
19
|
SSW
18
|
SSW
16
|
SSW
17
|
SW
17
|
WSW
16
|
WSW
12
|
W
12
|
|
|
36 | 34 | 30 | 32 | 34 | 31 | 23 | 23 |
|
|
G | VG | VG | G | VG | VG | VG | VG |
|
Humidity
|
85% | 86% | 84% | 78% | 66% | 59% | 62% | 64% |
|
UV
|
- | - | 1 | 3 | 5 | 2 | 1 | - |
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
|
|
|
|
|
|
|
|
|
Chance of precipitation
|
10% | 10% | <5% | <5% | <5% | 10% | 10% | 10% |
|
|
9°
|
6°
|
4°
|
6°
|
9°
|
10°
|
9°
|
7°
|
|
|
6° | 3° | 1° | 3° | 7° | 8° | 7° | 4° |
|
|
WNW
13
|
NW
10
|
NW
9
|
NW
10
|
NW
10
|
NW
10
|
NW
8
|
NE
8
|
|
|
25 | 19 | 16 | 21 | 22 | 21 | 16 | 16 |
|
|
VG | VG | VG | VG | VG | VG | VG | VG |
|
Humidity
|
59% | 60% | 65% | 53% | 49% | 50% | 60% | 70% |
|
UV
|
- | - | 1 | 4 | 6 | 2 | 1 | - |
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 |
|---|---|---|---|---|---|---|
| Weather symbol |
|
|
|
|
|
|
|
Chance of precipitation
|
10% | 10% | 10% | 10% | 30% | 40% |
|
|
5°
|
4°
|
3°
|
6°
|
9°
|
10°
|
|
|
2° | 1° | 0° | 3° | 6° | 7° |
|
|
NNE
9
|
NNE
9
|
NE
9
|
NE
10
|
NNE
11
|
NNE
11
|
|
|
16 | 18 | 17 | 20 | 23 | 22 |
|
|
VG | VG | VG | VG | VG | VG |
|
Humidity
|
75% | 75% | 76% | 66% | 59% | 54% |
|
UV
|
- | - | 1 | 3 | 5 | 2 |
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.
The arrow shows the direction of the wind (up is north). The blue behind the arrow represents the sea, and yellow is the land. If the arrow points from yellow to blue, the wind will be blowing from land to sea (‘offshore’). The number is the average wind speed.
Beware of offshore winds if you are using inflatables, paddle boards or kayaks, because these winds can blow you out to sea. Read more about how wind will affect you at the beach.
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 (Moderate) | 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.
This is the average height of the waves, 1-2 miles out to sea. The height of the waves can vary. The individual waves out to sea or at the beach can be higher than this number. If you are close to the water, keep an eye on the waves to stop you or your belongings being swept away.
Read more about calculating the expected height of the waves at the beach.
This is the average number of seconds between one wave and the next, 1-2 miles out to sea. A long wave period (more than 10 seconds) means the waves at the beach may be more powerful. Lifeguards can give you advice on waves if you’re planning to go into the water.
Read more about the period of waves.
The arrow shows the average direction that the waves are going 1-2 miles out to sea. It indicates how sheltered the beach will be from these waves. If the arrow points towards land, most of the waves’ power will reach the beach. If the arrow is parallel or pointing away from land, the height of the waves on the beach is likely to be lower than the height of waves offshore.
Lifeguards can give you advice on waves if you’re planning to go into the water.
Nearest forecasts
- Springfield Capital 42.5 miles
- Bloomington - Central Illinois 45.0 miles
- Peoria Regional 72.1 miles
- Terre Haute - Hulman Field 87.6 miles
- Greater Kankakee 101 miles
- St Louis 109 miles
- St.Louis - Lambert International 109 miles
- Spirit of St. Louis 125 miles
- Quincy 133 miles
- Aurora Municipal 136 miles