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Black Reservoir, NH Weather Forecast
Black Reservoir, NH Weather Forecast Date: 734 PM EDT Sat Aug 08 2026
The area/counties/county of: Cheshire, including the cities of: Gilsum, Keene, Marlow, Sullivan, Surry, and Jaffrey.or toggle through each period.
Tonight... Partly cloudy with a slight chance of showers and thunderstorms this evening, then mostly clear after midnight. Patchy fog after midnight. Some thunderstorms May produce heavy rainfall this evening. Lows in the mid 60s. Light and variable winds. Chance of rain 20%.
Sunday... Patchy fog in the morning. Mostly sunny. Humid with highs in the lower 80s. West winds around 10 mph.
Sunday Night... Mostly clear. Lows around 60. West winds around 10 mph in the evening, becoming light and variable.
Monday... Partly sunny. Highs in the lower 80s. Light and variable winds.
Monday Night... Partly cloudy. Humid with lows in the lower 60s. Light and variable winds.
Tuesday... Partly sunny. Highs around 80.
Tuesday Night... Partly cloudy. Lows in the upper 50s.
Wednesday... Partly sunny. Highs in the upper 70s.
Wednesday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 50s.
Thursday... Partly sunny with a chance of showers. Highs in the upper 70s. Chance of rain 50%.
Thursday Night... Partly cloudy. A chance of showers in the evening. Lows in the mid 50s. Chance of rain 40%.
Friday... Partly sunny. Highs in the mid 70s.
Friday Night... Mostly clear. Lows in the lower 50s.
POP = Probability of Precipitation
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