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Northampton weekend weather

This weekend in Northampton, 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 25° 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
22°
Cloudy
High 22°·Low 12°·Rain
EuropeanECMWF
24°
Partly cloudy
High 24°·Low 13°·Rain 0%
AmericanNOAA GFS
25°
Cloudy
High 25°·Low 10°·Rain 0%

The models range from 22° to 25°. Treat the middle of that range as the likely outcome and keep a backup plan.

Sun

2026-08-02 — every model, side by side
Met OfficeUKMO model
24°
Cloudy
High 24°·Low 12°·Rain
EuropeanECMWF
26°
Cloudy
High 26°·Low 13°·Rain 2%
AmericanNOAA GFS
28°
Cloudy
High 28°·Low 12°·Rain 0%

The models range from 24° to 28°. 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±2°24° to 26°±20%35% to 55% chance
Tomorrow±3°22° to 25°±12%0% to 12% chance
Sat±3°22° to 25°models agree0% to 0% chance
Sun±3°24° to 28°±2%0% to 2% chance
Mon±3°26° to 29°±19%3% to 22% 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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