National Weather Service Forecast for: Windham NH
Issued by: National Weather Service Gray/Portland, ME
Updated: 1:29 pm EDT Oct 6, 2026
 
This
Afternoon
This Afternoon: Sunny, with a high near 58. Northwest wind around 10 mph, with gusts as high as 25 mph.
Sunny
 Tonight

Tonight: Clear, with a low around 36. West wind around 5 mph becoming calm.
Clear
 Wednesday

Wednesday: Areas of frost between 7am and 8am. Otherwise, sunny, with a high near 65. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Areas Frost
then Sunny
 Wednesday
Night
Wednesday Night: Mostly cloudy, then gradually becoming clear, with a low around 50. Southwest wind around 5 mph.
Decreasing
Clouds
 Thursday

Thursday: Sunny, with a high near 72. Southwest wind 5 to 10 mph.
Sunny
 Thursday
Night
Thursday Night: Mostly clear, with a low around 48.
Mostly Clear
 Friday

Friday: Sunny, with a high near 66.
Sunny
 Friday
Night
Friday Night: Mostly clear, with a low around 44.
Mostly Clear
 Saturday

Saturday: Sunny, with a high near 65.
Sunny
Hi 58 °F Lo 36 °F Hi 65 °F Lo 50 °F Hi 72 °F Lo 48 °F Hi 66 °F Lo 44 °F Hi 65 °F

Frost Advisory
 

This Afternoon
 
 Sunny, with a high near 58. Northwest wind around 10 mph, with gusts as high as 25 mph.
Tonight
 
 Clear, with a low around 36. West wind around 5 mph becoming calm.
Wednesday
 
 Areas of frost between 7am and 8am. Otherwise, sunny, with a high near 65. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Wednesday Night
 
 Mostly cloudy, then gradually becoming clear, with a low around 50. Southwest wind around 5 mph.
Thursday
 
 Sunny, with a high near 72. Southwest wind 5 to 10 mph.
Thursday Night
 
 Mostly clear, with a low around 48.
Friday
 
 Sunny, with a high near 66.
Friday Night
 
 Mostly clear, with a low around 44.
Saturday
 
 Sunny, with a high near 65.
Saturday Night
 
 Mostly clear, with a low around 44.
Sunday
 
 Mostly sunny, with a high near 68.
Sunday Night
 
 A 30 percent chance of showers. Mostly cloudy, with a low around 52.
Columbus Day
 
 A 30 percent chance of showers. Partly sunny, with a high near 70.

 

Forecast from NOAA-NWS for Windham NH.