Weather in Sandown, NH
Updated 2026-08-11 11:15 local time · ZIP codes 03873
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
82°4% rain87°3% rain88°2% rain88°1% rain87°1% rain86°1% rain84°1% rain82°1% rain79°1% rain
75°2% rain72°3% rain70°3% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 4%).
It feels like 84°F with winds near 11 mph.
75°F, 2% rain chance and 5 mph wind.
Visibility is around 6 mi; gusts may reach 14 mph.
Current temperature is 82°F, wind 11 mph, rain chance up to 4%.
UV index is 6. Sunscreen and sunglasses are sensible for longer outdoor time.
Sandown weather today
Sunny and 82°F in Sandown, NH. Today's high is 88°F with a 4% rain chance. Winds are around 11 mph with gusts near 12 mph. Relative humidity is 60%, pressure is 29.78 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Sandown
Sunrise is at 05:46 AM and sunset is at 07:53 PM. Tomorrow's forecast calls for Sunny with a high near 84°F and a low near 62°F. The maximum rain chance is 6%.