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Mendip weekend weather

This weekend in Mendip, England, model by model. Weekend forecasts are far enough out that the models often split — so we show you where.

Weekend

The models centre on about 22° across the weekend. Agreement is medium — plausible, but worth re-checking closer to the day.

Sat

2026-08-01 — every model, side by side
Met OfficeUKMO model
19°
Cloudy
High 19°·Low ·Rain
EuropeanECMWF
20°
Cloudy
High 20°·Low 11°·Rain 6%
AmericanNOAA GFS
21°
Cloudy
High 21°·Low ·Rain 0%

All 3 models land within 2° of each other for this day — that is a forecast you can plan on.

Sun

2026-08-02 — every model, side by side
Met OfficeUKMO model
24°
Cloudy
High 24°·Low ·Rain
EuropeanECMWF
22°
Cloudy
High 22°·Low 10°·Rain 2%
AmericanNOAA GFS
26°
Cloudy
High 26°·Low ·Rain 0%

The models range from 22° to 26°. Treat the middle of that range as the likely outcome and keep a backup plan.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±1°21° to 22°±5%24% to 29% chance
Tomorrow±1°19° to 20°±10%0% to 10% chance
Sat±2°19° to 21°±6%0% to 6% chance
Sun±4°22° to 26°±2%0% to 2% chance
Mon±2°26° to 28°±24%3% to 27% chance

The models often agree on temperature and still split on rain — and rain is usually what decides whether a plan survives. A wide rain range means the shower is genuinely uncertain, not that the forecast is wrong.

Common questions

Will it rain this weekend?
The models are not currently showing a high weekend rain risk, and they broadly agree with each other.
How reliable is a weekend forecast?
It depends how far away the weekend is. Forecast error grows steadily with lead time, so a Saturday forecast made on Friday is far stronger than one made the previous Monday. The honest signal is model agreement: when they converge the forecast is solid, and when they spread the weekend is genuinely uncertain.

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