National Weather Service Forecast for: Weiser ID
Issued by: National Weather Service Boise, ID
Updated: 12:29 am MDT Jul 10, 2026
 
Today

Today: Sunny and hot, with a high near 102. Calm wind becoming south around 6 mph in the afternoon.
Hot
 Tonight

Tonight: Mostly clear, with a low around 66. South wind 5 to 11 mph becoming northwest in the evening. Winds could gust as high as 21 mph.
Mostly Clear
 Saturday

Saturday: Sunny and hot, with a high near 100. Calm wind becoming south 5 to 7 mph in the afternoon.
Hot
 Saturday
Night
Saturday Night: Partly cloudy, with a low around 67. South southeast wind 7 to 10 mph becoming north northwest after midnight.
Partly Cloudy
 Sunday

Sunday: Partly sunny and hot, with a high near 99. North northwest wind 5 to 8 mph.
Hot
 Sunday
Night
Sunday Night: Mostly cloudy, with a low around 68.
Mostly Cloudy
 Monday

Monday: Mostly sunny and hot, with a high near 99.
Hot
 Monday
Night
Monday Night: Mostly cloudy, with a low around 69.
Mostly Cloudy
 Tuesday

Tuesday: Mostly sunny and hot, with a high near 100.
Hot
Hi 102 °F Lo 66 °F Hi 100 °F Lo 67 °F Hi 99 °F Lo 68 °F Hi 99 °F Lo 69 °F Hi 100 °F

Heat Advisory
 

Today
 
 Sunny and hot, with a high near 102. Calm wind becoming south around 6 mph in the afternoon.
Tonight
 
 Mostly clear, with a low around 66. South wind 5 to 11 mph becoming northwest in the evening. Winds could gust as high as 21 mph.
Saturday
 
 Sunny and hot, with a high near 100. Calm wind becoming south 5 to 7 mph in the afternoon.
Saturday Night
 
 Partly cloudy, with a low around 67. South southeast wind 7 to 10 mph becoming north northwest after midnight.
Sunday
 
 Partly sunny and hot, with a high near 99. North northwest wind 5 to 8 mph.
Sunday Night
 
 Mostly cloudy, with a low around 68.
Monday
 
 Mostly sunny and hot, with a high near 99.
Monday Night
 
 Mostly cloudy, with a low around 69.
Tuesday
 
 Mostly sunny and hot, with a high near 100.
Tuesday Night
 
 Partly cloudy, with a low around 68.
Wednesday
 
 Sunny and hot, with a high near 100.
Wednesday Night
 
 Mostly clear, with a low around 66.
Thursday
 
 Sunny and hot, with a high near 101.

 

Forecast from NOAA-NWS for Weiser ID.