Harpenden (Hertfordshire) weather
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Forecast days
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Today. Maximum daytime temperature: 13 degrees Celsius; Minimum nighttime temperature: 8 degrees Celsius. Partly cloudy. Sunrise: 05:10; Sunset: 20:46. UV: Low; Pollution: Low; Pollen: Moderate.
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Saturday 15 May. Maximum daytime temperature: 13 degrees Celsius; Minimum nighttime temperature: 7 degrees Celsius. Heavy rain changing to overcast by lunchtime. Sunrise: 05:09; Sunset: 20:48. UV: Moderate; Pollution: Low; Pollen: Moderate.
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Sunday 16 May. Maximum daytime temperature: 14 degrees Celsius; Minimum nighttime temperature: 8 degrees Celsius. Cloudy changing to light rain by lunchtime. Sunrise: 05:07; Sunset: 20:49. UV: Moderate; Pollution: Low; Pollen: Moderate.
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Monday 17 May. Maximum daytime temperature: 15 degrees Celsius; Minimum nighttime temperature: 6 degrees Celsius. Cloudy changing to light showers by lunchtime. Sunrise: 05:06; Sunset: 20:51. UV: High; Pollution: Low; Pollen: Moderate.
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Tuesday 18 May. Maximum daytime temperature: 14 degrees Celsius; Minimum nighttime temperature: 7 degrees Celsius. Sunny changing to light showers in the afternoon. Sunrise: 05:04; Sunset: 20:52. UV: High; Pollution: Low; Pollen: Moderate.
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Wednesday 19 May. Maximum daytime temperature: 15 degrees Celsius; Minimum nighttime temperature: 7 degrees Celsius. Cloudy changing to light showers by late morning. Sunrise: 05:03; Sunset: 20:53. UV: High;
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Thursday 20 May. Maximum daytime temperature: 15 degrees Celsius; Minimum nighttime temperature: 8 degrees Celsius. Cloudy. Sunrise: 05:02; Sunset: 20:55. UV: Moderate;
Seven day forecast for Harpenden
| Time | Now | 23:00 |
|---|---|---|
| Weather symbol |
|
|
| Chance of precipitation | <5% | <5% |
| Temperature in degrees Celsius |
9°
|
9°
|
| Feels like temperature in degrees Celsius | 8° | 8° |
| Wind direction and speed in miles per hour |
SE
4
|
SE
6
|
| Wind gust in miles per hour | 11 | 17 |
| Visibility | G | G |
| Humidity | 83% | 81% |
| UV | - | - |
| 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 | 20:00 | 21:00 | 22:00 | 23:00 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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| Chance of precipitation | <5% | <5% | 10% | 10% | 10% | 10% | 50% | 90% | 90% | 90% | 80% | 50% | 50% | 20% | 20% | 50% | 50% | 20% | 10% | 10% | 10% | 40% | 10% | 10% |
| Temperature in degrees Celsius |
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
8°
|
9°
|
9°
|
9°
|
9°
|
10°
|
10°
|
11°
|
12°
|
12°
|
12°
|
11°
|
11°
|
11°
|
10°
|
10°
|
9°
|
| Feels like temperature in degrees Celsius | 8° | 8° | 8° | 7° | 8° | 7° | 7° | 7° | 7° | 7° | 7° | 8° | 9° | 10° | 10° | 11° | 11° | 11° | 10° | 10° | 10° | 9° | 8° | 7° |
| Wind direction and speed in miles per hour |
S
5
|
SSE
5
|
S
6
|
SSE
6
|
SE
5
|
SE
6
|
ESE
6
|
ESE
7
|
ESE
8
|
SE
6
|
SSE
7
|
S
6
|
SSE
5
|
SSE
4
|
S
4
|
S
5
|
WSW
6
|
SSW
7
|
SSW
8
|
WSW
7
|
SW
6
|
SW
7
|
SW
7
|
SW
7
|
| Wind gust in miles per hour | 14 | 13 | 14 | 13 | 12 | 12 | 12 | 13 | 14 | 11 | 12 | 10 | 9 | 8 | 8 | 9 | 11 | 12 | 14 | 12 | 12 | 15 | 14 | 16 |
| Visibility | G | G | G | G | M | M | M | M | M | M | M | G | G | G | G | VG | G | VG | VG | VG | VG | G | VG | VG |
| Humidity | 84% | 87% | 87% | 88% | 90% | 90% | 91% | 92% | 93% | 91% | 91% | 90% | 85% | 83% | 79% | 74% | 74% | 74% | 79% | 79% | 81% | 85% | 88% | 88% |
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 2 | 3 | 4 | 5 | 4 | 4 | 3 | 2 | 2 | 1 | 1 | - | - | - |
| Time | 00:00 | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|---|
| Weather symbol |
|
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|
|
|
|
|
|
| Chance of precipitation | <5% | <5% | 10% | 10% | 40% | 50% | 40% | 40% | 10% |
| Temperature in degrees Celsius |
9°
|
8°
|
8°
|
8°
|
11°
|
12°
|
13°
|
12°
|
10°
|
| Feels like temperature in degrees Celsius | 7° | 6° | 5° | 6° | 9° | 10° | 11° | 10° | 9° |
| Wind direction and speed in miles per hour |
SW
7
|
SW
7
|
SW
7
|
SW
8
|
SW
8
|
SSW
9
|
SSW
9
|
SW
6
|
SW
5
|
| Wind gust in miles per hour | 16 | 17 | 17 | 14 | 15 | 17 | 18 | 12 | 9 |
| Visibility | VG | VG | VG | G | G | VG | G | VG | G |
| Humidity | 90% | 92% | 92% | 92% | 74% | 72% | 71% | 78% | 91% |
| UV | - | - | - | 1 | 3 | 4 | 3 | 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% | 10% | 20% | 40% | 50% | 40% | 10% |
| Temperature in degrees Celsius |
9°
|
8°
|
8°
|
11°
|
13°
|
14°
|
12°
|
10°
|
| Feels like temperature in degrees Celsius | 7° | 6° | 6° | 9° | 11° | 11° | 10° | 8° |
| Wind direction and speed in miles per hour |
NW
5
|
WNW
8
|
WNW
9
|
WNW
10
|
WNW
11
|
WNW
12
|
WNW
10
|
W
8
|
| Wind gust in miles per hour | 11 | 15 | 18 | 21 | 24 | 24 | 19 | 15 |
| Visibility | G | G | G | G | VG | VG | VG | VG |
| Humidity | 94% | 95% | 93% | 80% | 69% | 59% | 66% | 74% |
| UV | - | - | 1 | 3 | 6 | 3 | 1 | - |
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
|
|
|
|
|
|
|
|
| Chance of precipitation | <5% | <5% | <5% | 10% | 10% | 40% | 30% | <5% |
| Temperature in degrees Celsius |
8°
|
7°
|
8°
|
11°
|
13°
|
13°
|
12°
|
9°
|
| Feels like temperature in degrees Celsius | 6° | 4° | 6° | 9° | 10° | 11° | 10° | 7° |
| Wind direction and speed in miles per hour |
W
9
|
WSW
8
|
WSW
9
|
W
12
|
W
13
|
W
14
|
W
11
|
WSW
9
|
| Wind gust in miles per hour | 17 | 16 | 18 | 25 | 28 | 28 | 21 | 17 |
| Visibility | VG | VG | VG | VG | G | VG | G | VG |
| Humidity | 81% | 88% | 86% | 64% | 54% | 57% | 67% | 79% |
| UV | - | - | 1 | 4 | 6 | 3 | 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% | 10% | 30% | 20% | 30% | 40% | 10% |
| Temperature in degrees Celsius |
8°
|
7°
|
8°
|
11°
|
14°
|
14°
|
13°
|
10°
|
| Feels like temperature in degrees Celsius | 5° | 5° | 6° | 9° | 11° | 11° | 11° | 8° |
| Wind direction and speed in miles per hour |
WSW
9
|
WSW
9
|
WSW
9
|
W
13
|
W
13
|
W
14
|
W
11
|
W
9
|
| Wind gust in miles per hour | 17 | 17 | 18 | 26 | 30 | 28 | 21 | 18 |
| Visibility | VG | G | G | G | G | VG | VG | VG |
| Humidity | 88% | 91% | 89% | 72% | 63% | 59% | 65% | 78% |
| UV | - | - | 1 | 4 | 6 | 3 | 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% | 10% | 20% | 20% | 20% | 20% | 10% |
| Temperature in degrees Celsius |
8°
|
8°
|
8°
|
11°
|
13°
|
14°
|
13°
|
11°
|
| Feels like temperature in degrees Celsius | 6° | 5° | 6° | 9° | 10° | 11° | 11° | 9° |
| Wind direction and speed in miles per hour |
WSW
9
|
WSW
8
|
SW
8
|
WSW
12
|
SW
14
|
SW
13
|
WSW
11
|
SW
10
|
| Wind gust in miles per hour | 16 | 15 | 15 | 25 | 29 | 26 | 21 | 20 |
| Visibility | VG | VG | M | VG | G | VG | VG | VG |
| Humidity | 84% | 88% | 86% | 74% | 68% | 64% | 65% | 75% |
| UV | - | - | 1 | 3 | 4 | 2 | 1 | - |
East of England weather forecast
Headline:
Mostly dry overnight. Rain, followed by showers, perhaps thundery Saturday.
This Evening and Tonight:
Daytime showers easing during the evening, but staying rather cloudy for most. The odd overnight shower cannot be ruled out, but most parts will be dry until around dawn. A band of rain will then spread northeast into southwestern parts. Minimum temperature 6 °C.
Saturday:
Cloudy start, with rain spreading northeast. This mostly light, before breaking up into showers through the morning. Brighter spells and heavy showers then follow, with a risk of thunder. Maximum temperature 15 °C.
Outlook for Sunday to Tuesday:
Staying cool, with variable amounts of cloud, sunny spells and showers throughout. Ongoing risk of thundery showers especially Sunday. Drier and chilly overnight with showers easing and some clear spells.
Updated:
UK long range weather forecast
Unsettled conditions continuing, with scattered showers again developing across most areas. To start the period, these may be heavy, and at times wintry in the far north, especially over hills. Further into this period, it is likely to remain changeable with a mixture of sunshine and scattered showers, though heavy in places with a risk of thunder. Brief spells of more organised cloud, bringing rain and strong winds, remain possible, particularly in the south. Generally staying breezy throughout. While temperatures by night are likely to below average, frost is expected to be restricted to prone locations, especially where winds fall light. By day, temperatures are likely to be around or slightly below average, notably cool in the South but cold in the North.
Updated:
Confidence is low for this period, typical of Spring and early Summer. It is likely for conditions to remain changeable with showers at first, but probably becoming more settled with an increasing likelihood of drier conditions for many places. Temperatures possibly recovering to nearer average but with more settled conditions bringing some warmer days, and some cooler nights remain possible.
Updated:
