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Welwyn, Hertfordshire

16 Day Weather Forecast

Overview

The pattern appears changeable, with neither high nor low pressure fully in control. Much of the period looks relatively dry.

A sharp change in overnight temperatures is set to develop later on, around Friday 17th July, and the overall trend is for temperatures to rise both day and night as the period progresses, and conditions may turn more unsettled as the period progresses.

Very hot conditions are predicted on at times, with highs reaching into the mid 30s. The hottest conditions are expected on Friday 17 July, when temperatures may reach 39°C. The coolest night is expected on Friday 3 July, with lows around 10°C. There is a notable spread between the highest and lowest temperatures, so conditions will vary considerably.

These forecasts use interpolation to improve accuracy for your specific location, and are powered by either ECMWF or GFS model data depending on your selection. As with all weather forecasts, confidence decreases rapidly beyond 5 days ahead — treat the later dates as a heads-up about possible conditions rather than a firm prediction.

If you have a moment, please let us know what you think.

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Date Weather Temp Wind
Fri
03 Jul
Weather 23°C Wind direction 10mph
Sat
04 Jul
Weather 24°C Wind direction 15mph
Sun
05 Jul
Weather 26°C Wind direction 12mph
Mon
06 Jul
Weather 29°C Wind direction 13mph
Tue
07 Jul
Weather 28°C Wind direction 12mph
Wed
08 Jul
Weather 30°C Wind direction 9mph
Thu
09 Jul
Weather 25°C Wind direction 10mph
Fri
10 Jul
Weather 27°C Wind direction 16mph
Sat
11 Jul
Weather 29°C Wind direction 15mph
Sun
12 Jul
Weather 32°C Wind direction 12mph
Mon
13 Jul
Weather 32°C Wind direction 16mph
Tue
14 Jul
Weather 33°C Wind direction 12mph
Wed
15 Jul
Weather 29°C Wind direction 11mph
Thu
16 Jul
Weather 32°C Wind direction 7mph
Fri
17 Jul
Weather 37°C Wind direction 18mph
Hourly 30 day
Issued: 02/07 23:23 | Help

Graphs

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Max temp Min temp Surface Pressure Wind speed Wind gust
Rain total Freezing level Cloud cover Humidity

High impact weather

Assess the chance of frost, strong winds, heavy rain, and snow based on the data utilised in this forecast.

Will it forecasts

Data from different computer models is blended to increase accuracy.

Will it rain in Welwyn, Hertfordshire

Will it be hot in Welwyn, Hertfordshire

Will it snow in Welwyn, Hertfordshire

Will it be frosty in Welwyn, Hertfordshire

Will it thunder in Welwyn, Hertfordshire

MOGREPS-G forecast

Forecast charts using data from the UK Met Office MOGREPS-G ensemble model.

Information about MOGREPS-G.

GEFS forecast

Forecast charts using data from the NCEP GEFS ensemble model.

Sun & Moon Calendar for Welwyn, Hertfordshire

View complete sun & moon times, phases and celestial data for Welwyn, Hertfordshire