National Weather Service Forecast for: Salem NH
Issued by: National Weather Service Gray/Portland, ME
Updated: 2:26 am EDT Jun 30, 2026
 
Today

Today: Mostly sunny and hot, with a high near 91. Calm wind becoming southwest around 5 mph in the afternoon.
Hot

 Tonight

Tonight: A chance of showers and thunderstorms before 1am, then a slight chance of showers after 2am. Mostly cloudy, with a low around 68. Southwest wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
Showers then
Slight Chance
T-storms
 Wednesday

Wednesday: Mostly sunny and hot, with a high near 97. Heat index values as high as 106. Southwest wind around 5 mph.
Hot

 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 76. Southwest wind around 5 mph.
Mostly Clear

 Thursday

Thursday: Sunny and hot, with a high near 100. West wind 5 to 10 mph.
Hot

 Thursday
Night
Thursday Night: Mostly clear, with a low around 76.
Mostly Clear

 Friday

Friday: Sunny and hot, with a high near 103.
Hot

 Friday
Night
Friday Night: Mostly clear, with a low around 73.
Mostly Clear

 Independence
Day
Independence Day: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 96.
Mostly Sunny
then Chance
T-storms
Hi 91 °F Lo 68 °F Hi 97 °F Lo 76 °F Hi 100 °F Lo 76 °F Hi 103 °F Lo 73 °F Hi 96 °F

Extreme Heat Watch
 

Today
 
 Mostly sunny and hot, with a high near 91. Calm wind becoming southwest around 5 mph in the afternoon.
Tonight
 
 A chance of showers and thunderstorms before 1am, then a slight chance of showers after 2am. Mostly cloudy, with a low around 68. Southwest wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
 
 Mostly sunny and hot, with a high near 97. Heat index values as high as 106. Southwest wind around 5 mph.
Wednesday Night
 
 Mostly clear, with a low around 76. Southwest wind around 5 mph.
Thursday
 
 Sunny and hot, with a high near 100. West wind 5 to 10 mph.
Thursday Night
 
 Mostly clear, with a low around 76.
Friday
 
 Sunny and hot, with a high near 103.
Friday Night
 
 Mostly clear, with a low around 73.
Independence Day
 
 A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 96.
Saturday Night
 
 A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 10pm. Partly cloudy, with a low around 69. Chance of precipitation is 30%.
Sunday
 
 Mostly sunny and hot, with a high near 92.
Sunday Night
 
 Partly cloudy, with a low around 66.
Monday
 
 Mostly sunny, with a high near 87.

 

Forecast from NOAA-NWS for Salem NH.