National Weather Service Forecast for: Amherst MA
Issued by: National Weather Service Norton, MA
Updated: 2:14 am EDT Jun 30, 2026
 
Today

Today: A slight chance of showers and thunderstorms after 3pm. Mostly sunny and hot, with a high near 92. Calm wind becoming south 5 to 8 mph in the afternoon. Chance of precipitation is 20%.
Mostly Sunny
then Slight
Chance
T-storms
 Tonight

Tonight: A chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 67. South wind 6 to 8 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Chance
T-storms then
Chance
Showers
 Wednesday

Wednesday: A slight chance of showers and thunderstorms after 3pm. Partly sunny and hot, with a high near 99. Heat index values as high as 110. South wind 7 to 11 mph becoming west in the afternoon. Chance of precipitation is 20%.
Partly Sunny
then Slight
Chance
T-storms
 Wednesday
Night
Wednesday Night: A chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 73. Southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%.
Chance
Showers

 Thursday

Thursday: Sunny and hot, with a high near 100. Light west wind increasing to 6 to 11 mph in the morning.
Hot

 Thursday
Night
Thursday Night: Mostly clear, with a low around 75. West wind around 6 mph becoming calm in the evening.
Mostly Clear

 Friday

Friday: Sunny and hot, with a high near 99. Light west wind increasing to 9 to 14 mph in the morning.
Hot

 Friday
Night
Friday Night: Mostly clear, with a low around 71. West wind 5 to 7 mph becoming calm after midnight.
Mostly Clear

 Independence
Day
Independence Day: A chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 97. Light west wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 30%.
Sunny then
Chance
T-storms
Hi 92 °F Lo 67 °F Hi 99 °F Lo 73 °F Hi 100 °F Lo 75 °F Hi 99 °F Lo 71 °F Hi 97 °F

Extreme Heat Warning
 

Today
 
 A slight chance of showers and thunderstorms after 3pm. Mostly sunny and hot, with a high near 92. Calm wind becoming south 5 to 8 mph in the afternoon. Chance of precipitation is 20%.
Tonight
 
 A chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 67. South wind 6 to 8 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
 
 A slight chance of showers and thunderstorms after 3pm. Partly sunny and hot, with a high near 99. Heat index values as high as 110. South wind 7 to 11 mph becoming west in the afternoon. Chance of precipitation is 20%.
Wednesday Night
 
 A chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 73. Southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%.
Thursday
 
 Sunny and hot, with a high near 100. Light west wind increasing to 6 to 11 mph in the morning.
Thursday Night
 
 Mostly clear, with a low around 75. West wind around 6 mph becoming calm in the evening.
Friday
 
 Sunny and hot, with a high near 99. Light west wind increasing to 9 to 14 mph in the morning.
Friday Night
 
 Mostly clear, with a low around 71. West wind 5 to 7 mph becoming calm after midnight.
Independence Day
 
 A chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 97. Light west wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 30%.
Saturday Night
 
 A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 69. Light west wind. Chance of precipitation is 30%.
Sunday
 
 Mostly sunny and hot, with a high near 91. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Sunday Night
 
 A chance of showers. Partly cloudy, with a low around 67. Light north wind. Chance of precipitation is 30%.
Monday
 
 A chance of showers and thunderstorms. Partly sunny, with a high near 87. Calm wind becoming northeast around 6 mph in the afternoon. Chance of precipitation is 30%.

 

Forecast from NOAA-NWS for Amherst MA.