Chatham, NH Weather Tomorrow

See tomorrow's forecast for Chatham together with a reliable 5 day outlook featuring daily precipitation forecasts, changing sky conditions, daytime highs, overnight lows, Fahrenheit and Celsius temperatures, sunrise, sunset, wind chill, and local wind details for the Chatham area and around Carroll county, New Hampshire.
Updated: Wed Aug 26th 2026 6:30 PM EDT
Chatham, NH Weather – 8-26 – Sunny
75° / 55°
Sunny
Chatham may see a sunny day, with daytime highs of 75°F and overnight lows near 55°F. There's a very small chance of rainfall, only about 5%. Winds will be light at 5mph and gusts of 5mph at 9 PM. The humidity will be on the higher side, averaging about 62%, the maximum being 65% at 11 PM and 56% being its lowest at 8 PM. Barometric pressure is its highest of 30.05inHg at 9 PM, a lowest point of 30inHg at 7 PM with an avg 30.03inHg.
Chatham, NH Weather – 8-27 – Overcast
82° / 62°

Weather Tomorrow

Overcast
Highs will reach 82°F with lows near 62°F in Chatham, where overcast is. The chance of rain is 78% with an estimated 0.22in. Wind will be moderate, blowing around 11mph on average and gusts of 20.4mph at 4 PM. The humidity will be on the higher side, averaging about 74%, the maximum being 98% at 11 PM and 39% being its lowest at 1 PM. Barometric pressure is its highest of 30.05inHg at 8 AM, a lowest point of 29.95inHg at 2 PM with an avg 30inHg.
Chatham, NH Weather – 8-28 – Fog
79° / 62°
Fog
Chatham is set for fog with temperatures peaking at 79°F and dipping to 62°F. The chance of rain is 87% with an estimated 0.2in. Winds will be light at 7mph and gusts of 15.7mph at 8 PM. High humidity with average of 89% is anticipated, the maximum being 99% at 7 AM and 52% being its lowest at 3 PM. Barometric pressure is its highest of 30inHg at 10 AM, a lowest point of 29.87inHg at 5 PM with an avg 29.95inHg.
Chatham, NH Weather – 8-29 – Sunny
77° / 52°
Sunny
Bright and sunny conditions in Chatham, with a high of 77°F and a low of 52°F. There's a very small chance of rainfall, only about 6%. Winds will be light at 10mph and gusts of 20.6mph at 5 PM. The humidity will be on the higher side, averaging about 65%, the maximum being 96% at 6 AM and 26% being its lowest at 4 PM. Barometric pressure is its highest of 30.24inHg at 11 PM, a lowest point of 30.03inHg at 12 AM with an avg 30.11inHg.
Chatham, NH Weather – 8-30 – Overcast
83° / 48°
Overcast
Daytime highs will reach 83°F with lows dropping to 48°F in Chatham, where skies will be overcast. There's a very small chance of rainfall, only about 9%. Wind will be moderate, blowing around 13mph on average and gusts of 25.3mph at 6 PM. Humidity levels should be comfortable, sitting around 58% on average, the maximum being 79% at 11 PM and 33% being its lowest at 2 PM. Barometric pressure is its highest of 30.28inHg at 8 AM, a lowest point of 29.91inHg at 6 PM with an avg 30.06inHg.
Chatham, NH Weather – 8-31 – Mist
65° / 56°
Mist
Chatham may see mist, with daytime highs of 65°F and overnight lows near 56°F. The chance of rain is 88% with an estimated 0.13in. Winds will be light at 4mph and gusts of 12.1mph at 12 AM. High humidity with average of 96% is anticipated, the maximum being 100% at 11 PM and 81% being its lowest at 1 AM. Barometric pressure is its highest of 30.03inHg at 11 AM, a lowest point of 29.92inHg at 11 PM with an avg 29.99inHg.

Currently

Sunny 72°F
30 inHg.
Barometer
54%
Humidity
SE 3.6 mph
Wind
Sunny

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