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Alstead, NH Weather Forecast
Alstead, NH Weather Forecast Date: 720 PM EDT Wed Aug 12 2026
The area/counties/county of: Cheshire, including the cities of: Gilsum, Keene, Marlow, Sullivan, Surry, and Jaffrey.or toggle through each period.
Tonight... A slight chance of thunderstorms this evening. Partly cloudy with a chance of showers. Lows around 60. Light and variable winds. Chance of rain 40%.
Thursday... Partly sunny. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 70s. Light and variable winds, becoming northwest around 10 mph in the afternoon. Chance of rain 30%.
Thursday Night... Mostly clear. A slight chance of showers in the evening. Lows in the mid 50s. Light and variable winds. Chance of rain 20%.
Friday... Mostly sunny. Highs in the upper 70s. Light and variable winds, becoming northwest around 10 mph in the afternoon.
Friday Night... Mostly clear. Lows in the lower 50s. Light and variable winds.
Saturday... Mostly sunny. Highs in the upper 70s.
Saturday Night... Mostly clear. Lows in the lower 50s.
Sunday... Partly sunny. A chance of showers in the afternoon. Highs in the upper 70s. Chance of rain 30%.
Sunday Night... Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers. Lows in the upper 50s. Chance of rain 50%.
Monday... Partly sunny with a chance of showers. Highs in the mid 70s. Chance of rain 50%.
Monday Night... Partly cloudy. A chance of showers in the evening. Lows in the upper 50s. Chance of rain 30%.
Tuesday... Partly sunny. Highs in the upper 70s.
Tuesday Night... Mostly clear. Lows in the upper 50s.
POP = Probability of Precipitation
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