National Weather Service Forecast for: Swanzey NH
Issued by: National Weather Service Gray/Portland, ME
Updated: 5:30 am EDT Jun 22, 2026
 
Today

Today: Showers likely, with thunderstorms also possible after 5pm. Patchy fog before 8am. Otherwise, cloudy, with a high near 75. Calm wind. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Patchy Fog
then Showers
Likely
 Tonight

Tonight: Rain and possibly a thunderstorm before 11pm, then rain between 11pm and 4am, then showers likely after 4am. Low around 57. Southeast wind around 5 mph becoming calm. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Showers

 Tuesday

Tuesday: Showers likely, mainly before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 77. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Showers
Likely then
Scattered
Showers
 Tuesday
Night
Tuesday Night: Patchy fog. Otherwise, mostly clear, with a low around 55. Calm wind.
Patchy Fog

 Wednesday

Wednesday: Sunny, with a high near 77. Calm wind becoming northwest around 5 mph in the morning.
Sunny

 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 56.
Mostly Clear

 Thursday

Thursday: Mostly sunny, with a high near 80.
Mostly Sunny

 Thursday
Night
Thursday Night: Showers and thunderstorms likely, then showers after 2am. Low around 58. Chance of precipitation is 80%.
Showers

 Friday

Friday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 80. Chance of precipitation is 70%.
Showers
Likely
Hi 75 °F Lo 57 °F Hi 77 °F Lo 55 °F Hi 77 °F Lo 56 °F Hi 80 °F Lo 58 °F Hi 80 °F

 

Today
 
 Showers likely, with thunderstorms also possible after 5pm. Patchy fog before 8am. Otherwise, cloudy, with a high near 75. Calm wind. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
 
 Rain and possibly a thunderstorm before 11pm, then rain between 11pm and 4am, then showers likely after 4am. Low around 57. Southeast wind around 5 mph becoming calm. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Tuesday
 
 Showers likely, mainly before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 77. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
 
 Patchy fog. Otherwise, mostly clear, with a low around 55. Calm wind.
Wednesday
 
 Sunny, with a high near 77. Calm wind becoming northwest around 5 mph in the morning.
Wednesday Night
 
 Mostly clear, with a low around 56.
Thursday
 
 Mostly sunny, with a high near 80.
Thursday Night
 
 Showers and thunderstorms likely, then showers after 2am. Low around 58. Chance of precipitation is 80%.
Friday
 
 Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 80. Chance of precipitation is 70%.
Friday Night
 
 A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Chance of precipitation is 50%.
Saturday
 
 Mostly sunny, with a high near 81.
Saturday Night
 
 Partly cloudy, with a low around 60.
Sunday
 
 Sunny, with a high near 82.

 

Forecast from NOAA-NWS for Swanzey NH.