Letchworth Garden City (Hertfordshire) weather

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Forecast days

Mon 13 Jul

Maximum daytime temperature: 26° Celsius; Minimum nighttime temperature: 16° Celsius;

Sunrise: 04:57

Sunset: 21:16

Overcast changing to sunny intervals by late morning.

H UV

L Pollution

L Pollen

Mon 13 Jul

Maximum daytime temperature: 26 degrees Celsius; Minimum nighttime temperature: 16 degrees Celsius;
Tue 14 Jul

Maximum daytime temperature: 30° Celsius; Minimum nighttime temperature: 16° Celsius;

Sunrise: 04:58

Sunset: 21:15

Overcast changing to sunny intervals by late morning.

H UV

L Pollution

M Pollen

Tue 14 Jul

Maximum daytime temperature: 30 degrees Celsius; Minimum nighttime temperature: 16 degrees Celsius;
Wed 15 Jul

Maximum daytime temperature: 29° Celsius; Minimum nighttime temperature: 15° Celsius;

Sunrise: 04:59

Sunset: 21:14

Sunny.

H UV

L Pollution

M Pollen

Wed 15 Jul

Maximum daytime temperature: 29 degrees Celsius; Minimum nighttime temperature: 15 degrees Celsius;
Thu 16 Jul

Maximum daytime temperature: 28° Celsius; Minimum nighttime temperature: 15° Celsius;

Sunrise: 05:00

Sunset: 21:13

Sunny.

H UV

L Pollution

M Pollen

Thu 16 Jul

Maximum daytime temperature: 28 degrees Celsius; Minimum nighttime temperature: 15 degrees Celsius;
Fri 17 Jul

Maximum daytime temperature: 26° Celsius; Minimum nighttime temperature: 14° Celsius;

Sunrise: 05:02

Sunset: 21:12

Sunny intervals.

H UV

M Pollution

M Pollen

Fri 17 Jul

Maximum daytime temperature: 26 degrees Celsius; Minimum nighttime temperature: 14 degrees Celsius;
Sat 18 Jul

Maximum daytime temperature: 23° Celsius; Minimum nighttime temperature: 12° Celsius;

Sunrise: 05:03

Sunset: 21:10

Sunny intervals.

H UV

No pollution data.

No pollen data.

Sat 18 Jul

Maximum daytime temperature: 23 degrees Celsius; Minimum nighttime temperature: 12 degrees Celsius;
Sun 19 Jul

Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 12° Celsius;

Sunrise: 05:04

Sunset: 21:09

Sunny intervals.

H UV

No pollution data.

No pollen data.

Sun 19 Jul

Maximum daytime temperature: 24 degrees Celsius; Minimum nighttime temperature: 12 degrees Celsius;

Overcast changing to sunny intervals by late morning.

Sunrise: 04:57

Sunset: 21:16

H UV

L Pollution

L Pollen

7 day forecast for Letchworth Garden City

Today (13 July 2026)

Time	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 symbols
Chance of precipitation	<5%	<5%	10%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%
Temperature (°C)	15°	17°	18°	19°	20°	22°	23°	25°	25°	26°	25°	24°	23°	21°	20°	18°	17°
Feels like temperature (°C)	13°	14°	15°	16°	17°	19°	21°	22°	22°	22°	22°	21°	20°	19°	17°	16°	15°
Wind direction and speed (mph)	NE 10	NE 13	NE 13	NE 13	NE 14	NE 13	NE 13	NE 13	NE 14	NE 15	NE 15	NE 15	NE 15	NE 14	NE 13	NNE 11	NNE 11
Wind gust (mph)	26	28	28	29	28	28	29	30	32	32	32	32	31	28	25	24	22
Visibility (description)	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG
Humidity	82%	79%	76%	72%	66%	60%	53%	45%	41%	42%	46%	52%	57%	63%	70%	75%	82%
UV	1	2	3	5	6	7	7	7	5	4	2	1	1	1	1	-	-

Tuesday (14 July 2026)

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 symbols
Chance of precipitation	<5%	<5%	<5%	<5%	<5%	<5%	10%	<5%	10%	10%	<5%	<5%	<5%	<5%	10%	10%	10%	10%	10%	<5%	<5%	<5%	<5%	<5%
Temperature (°C)	16°	16°	16°	16°	16°	16°	16°	17°	18°	19°	20°	23°	24°	26°	27°	29°	29°	29°	28°	28°	27°	24°	23°	21°
Feels like temperature (°C)	15°	15°	15°	14°	14°	14°	15°	15°	16°	17°	19°	21°	23°	25°	27°	28°	28°	28°	27°	26°	25°	23°	22°	20°
Wind direction and speed (mph)	NNE 11	NNE 11	NNE 10	NNE 10	NNE 10	NNE 10	NNE 10	NNE 11	NNE 11	NNE 11	NNE 11	NNE 10	NNE 9	NNE 8	NNE 7	NNE 7	ENE 9	ENE 9	ENE 9	E 10	ENE 10	ENE 9	ENE 9	NE 8
Wind gust (mph)	22	22	22	22	21	21	23	23	24	24	24	23	22	21	20	22	23	24	23	23	21	20	19	18
Visibility (description)	VG	VG	VG	VG	VG	G	G	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG
Humidity	85%	85%	86%	87%	90%	91%	90%	85%	84%	78%	74%	66%	56%	47%	44%	38%	38%	39%	40%	42%	44%	54%	61%	68%
UV	-	-	-	-	1	1	1	1	2	3	5	6	7	7	7	5	4	2	1	1	1	1	-	-

Wednesday (15 July 2026)

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 symbols
Chance of precipitation	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%
Temperature (°C)	20°	19°	18°	17°	16°	16°	16°	17°	19°	22°	24°	26°	27°	27°	28°	28°	28°	27°	27°	26°	25°	23°	21°	19°
Feels like temperature (°C)	19°	18°	17°	17°	16°	15°	15°	17°	18°	20°	22°	23°	24°	25°	25°	25°	25°	24°	24°	23°	23°	21°	19°	18°
Wind direction and speed (mph)	NE 8	NE 7	NNE 7	NNE 7	NNE 7	NNE 7	NNE 7	NE 8	NE 9	NE 10	NE 11	ENE 11	ENE 11	ENE 11	ENE 11	ENE 11	ENE 11	ENE 11	ENE 13	ENE 13	ENE 11	NE 10	NE 9	NE 8
Wind gust (mph)	17	16	15	15	16	16	19	20	22	24	26	26	26	27	27	27	26	26	26	25	22	19	18	17
Visibility (description)	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG
Humidity	73%	76%	79%	82%	85%	88%	87%	84%	74%	63%	53%	41%	39%	36%	28%	25%	24%	26%	33%	40%	41%	46%	58%	70%
UV	-	-	-	-	1	1	1	1	2	4	5	6	7	7	7	5	4	2	1	1	1	1	-	-

Thursday (16 July 2026)

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 symbols
Chance of precipitation	<5%	<5%	<5%	<5%	<5%	<5%	<5%	10%	<5%	<5%	10%	10%	<5%	<5%	10%	20%	20%	20%	20%	10%	10%	10%	10%	10%
Temperature (°C)	17°	16°	15°	15°	15°	15°	15°	16°	18°	20°	22°	24°	26°	26°	27°	27°	27°	26°	25°	25°	24°	22°	20°	19°
Feels like temperature (°C)	16°	15°	15°	15°	15°	14°	14°	15°	17°	19°	21°	23°	25°	25°	25°	25°	25°	25°	23°	24°	23°	21°	19°	18°
Wind direction and speed (mph)	NNE 7	NNE 7	NNE 7	NNE 6	NNE 7	NNE 7	NNE 7	NNE 8	NNE 8	NE 9	NE 8	NE 8	NE 7	NE 7	NE 8	NE 8	NE 8	NE 8	ENE 9	ENE 9	ENE 9	ENE 7	ENE 7	NE 6
Wind gust (mph)	16	16	15	15	16	17	18	19	19	20	21	21	21	20	21	20	21	21	19	19	17	15	13	12
Visibility (description)	VG	VG	VG	VG	G	G	G	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG
Humidity	81%	86%	91%	91%	92%	93%	92%	85%	76%	67%	57%	44%	40%	37%	29%	29%	30%	34%	35%	39%	42%	48%	58%	67%
UV	-	-	-	-	-	1	1	1	2	4	5	6	7	7	6	5	4	2	1	1	1	1	-	-

Friday (17 July 2026)

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 symbols
Chance of precipitation	10%	10%	10%	10%	10%	10%	10%	10%	10%	10%	10%	10%	10%	20%	20%	20%	20%	10%	10%	10%	10%	10%	10%	10%
Temperature (°C)	18°	17°	16°	16°	16°	15°	15°	16°	17°	20°	21°	23°	24°	25°	25°	26°	26°	26°	25°	24°	22°	20°	18°	17°
Feels like temperature (°C)	18°	17°	16°	16°	15°	15°	15°	16°	17°	19°	21°	22°	23°	23°	24°	24°	24°	24°	23°	22°	21°	19°	17°	16°
Wind direction and speed (mph)	NE 5	NNE 5	NNE 5	NNE 5	NNE 5	N 6	N 7	N 7	N 7	N 7	N 8	N 8	N 8	N 8	N 7	N 8	N 8	NNE 8	NNE 9	NNE 9	NNE 8	NE 7	NE 7	NE 7
Wind gust (mph)	11	12	11	12	13	14	15	16	17	18	20	21	21	22	21	20	21	21	21	21	20	18	16	14
Visibility (description)	VG	VG	VG	G	G	M	G	G	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG
Humidity	72%	78%	84%	90%	92%	92%	92%	86%	83%	73%	64%	55%	45%	43%	41%	41%	40%	41%	42%	44%	53%	62%	71%	76%
UV	-	-	-	-	-	1	1	1	2	3	5	6	7	7	6	5	4	2	1	1	1	1	-	-

Saturday (18 July 2026)

Time	00:00	01:00	04:00	07:00	10:00	13:00	16:00	19:00	22:00
Weather symbols
Chance of precipitation	<5%	<5%	<5%	<5%	<5%	10%	10%	10%	<5%
Temperature (°C)	16°	16°	15°	15°	18°	22°	23°	21°	17°
Feels like temperature (°C)	16°	16°	14°	14°	17°	21°	21°	19°	16°
Wind direction and speed (mph)	NNE 6	NNE 5	N 5	N 7	N 7	N 7	NNE 8	NNE 8	NE 7
Wind gust (mph)	12	13	15	17	18	20	22	22	15
Visibility (description)	VG	VG	G	VG	VG	VG	VG	VG	VG
Humidity	82%	84%	89%	84%	67%	52%	42%	51%	67%
UV	-	-	-	1	5	7	4	1	-

Sunday (19 July 2026)

Time	01:00	04:00	07:00	10:00	13:00	16:00	19:00	22:00
Weather symbols
Chance of precipitation	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%
Temperature (°C)	15°	13°	14°	18°	21°	23°	21°	16°
Feels like temperature (°C)	14°	12°	13°	16°	20°	21°	19°	15°
Wind direction and speed (mph)	N 6	NNW 6	NNW 6	N 7	N 7	N 8	NNE 8	NE 6
Wind gust (mph)	12	13	18	21	21	22	21	14
Visibility (description)	VG	VG	VG	VG	VG	VG	VG	VG
Humidity	79%	83%	80%	61%	42%	40%	42%	64%
UV	-	-	1	5	6	4	1	-

News

Heatwave continues as UK records unprecedented run of 35°C days

Temperatures of 35°C or higher have now been recorded in May, June and July of the same year for the first time in the UK weather record, as heatwave condition…

UK video forecast

Letchworth Garden City weather map

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East of England weather forecast

Headline:

Plenty of sunny spells developing.

Today:

Patchy low cloud at first, but this will soon burn back to the coast during the morning, leaving plenty of sunshine for the rest of the day. Breezy northeasterly winds. Maximum temperature 26 °C.

Tonight:

Areas of low cloud will move westwards from the coast overnight with perhaps some isolated light drizzle, but most areas likely remaining dry. Minimum temperature 14 °C.

Tuesday:

Another cloudy start, but similar to Monday cloud will burn back towards the coast to leave plenty of sunny spells for the rest of the day. Maximum temperature 31 °C.

Outlook for Wednesday to Friday:

Largely dry through this period, with cloud developing overnight, burning back to coasts by day to give sunny spells. Becoming very warm or hot inland once more, cooler near coasts.

Updated: 04:00 (UTC+1) on Mon 13 Jul 2026

UK long range weather forecast

A change in weather pattern is likely by the start of this period, with the preceding dry and sunny weather breaking down into a more unsettled spell. Some heavy and thundery showers are likely, particularly across the south of the UK. Into the following week, a short spell of more settled weather is likely at first, before more changeable conditions return later. This brings showers or longer spells of rain at times, perhaps heavy and thundery in places. Temperatures are likely to be above normal.

Updated: 13:00 (UTC+1) on Sun 12 Jul 2026

Letchworth Garden City (Hertfordshire) weather

Find a forecast

Forecast days

Mon 13 Jul

Mon 13 Jul

Tue 14 Jul

Tue 14 Jul

Wed 15 Jul

Wed 15 Jul

Thu 16 Jul

Thu 16 Jul

Fri 17 Jul

Fri 17 Jul

Sat 18 Jul

Sat 18 Jul

Sun 19 Jul

Sun 19 Jul

7 day forecast for Letchworth Garden City

Tooltip header

Heatwave continues as UK records unprecedented run of 35°C days

UK video forecast

East of England weather forecast

Headline:

Today:

Tonight:

Tuesday:

Outlook for Wednesday to Friday:

UK long range weather forecast

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Letchworth Garden City (Hertfordshire) weather

Find a forecast

Forecast days

Mon 13 Jul

Mon 13 Jul

Tue 14 Jul

Tue 14 Jul

Wed 15 Jul

Wed 15 Jul

Thu 16 Jul

Thu 16 Jul

Fri 17 Jul

Fri 17 Jul

Sat 18 Jul

Sat 18 Jul

Sun 19 Jul

Sun 19 Jul

7 day forecast for Letchworth Garden City

Heatwave continues as UK records unprecedented run of 35°C days

UK video forecast

East of England weather forecast

Monday 13 Jul - Friday 17 Jul

Headline:

Today:

Tonight:

Tuesday:

Outlook for Wednesday to Friday:

UK long range weather forecast

Friday 17 Jul - Sunday 26 Jul

Monday 27 Jul - Monday 10 Aug

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