National Weather Service Forecast for: Jackson WY
Issued by: National Weather Service Riverton, WY
Updated: 10:47 am MDT Jul 12, 2026
 
This
Afternoon
This Afternoon: Mostly sunny and hot, with a high near 99. South southwest wind 8 to 10 mph, with gusts as high as 20 mph.
Hot

Tonight

Tonight: Mostly clear, with a low around 56. Southwest wind 5 to 8 mph becoming calm  in the evening.
Mostly Clear

Monday

Monday: Sunny and hot, with a high near 99. Calm wind becoming west 5 to 7 mph in the afternoon.
Hot

Monday
Night
Monday Night: Mostly cloudy, then gradually becoming clear, with a low around 56. Northwest wind around 5 mph becoming calm  after midnight.
Decreasing
Clouds
Tuesday

Tuesday: Sunny and hot, with a high near 98. Calm wind becoming west southwest around 6 mph in the afternoon.
Hot

Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 57. Northwest wind around 6 mph becoming calm  in the evening.
Partly Cloudy

Wednesday

Wednesday: A 40 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 93. Calm wind becoming west 5 to 7 mph in the afternoon.
Mostly Sunny
then Chance
T-storms
Wednesday
Night
Wednesday Night: A 20 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 56.
Slight Chance
T-storms then
Partly Cloudy
Thursday

Thursday: A 50 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 93.
Mostly Sunny
then Chance
T-storms
Hi 99 °F Lo 56 °F Hi 99 °F Lo 56 °F Hi 98 °F Lo 57 °F Hi 93 °F Lo 56 °F Hi 93 °F

Extreme Heat Warning
 

This Afternoon
 
Mostly sunny and hot, with a high near 99. South southwest wind 8 to 10 mph, with gusts as high as 20 mph.
Tonight
 
Mostly clear, with a low around 56. Southwest wind 5 to 8 mph becoming calm in the evening.
Monday
 
Sunny and hot, with a high near 99. Calm wind becoming west 5 to 7 mph in the afternoon.
Monday Night
 
Mostly cloudy, then gradually becoming clear, with a low around 56. Northwest wind around 5 mph becoming calm after midnight.
Tuesday
 
Sunny and hot, with a high near 98. Calm wind becoming west southwest around 6 mph in the afternoon.
Tuesday Night
 
Partly cloudy, with a low around 57. Northwest wind around 6 mph becoming calm in the evening.
Wednesday
 
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 93. Calm wind becoming west 5 to 7 mph in the afternoon.
Wednesday Night
 
A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 56.
Thursday
 
A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 93.
Thursday Night
 
A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 55.
Friday
 
A chance of showers and thunderstorms. Sunny, with a high near 94.
Friday Night
 
A chance of showers and thunderstorms. Partly cloudy, with a low around 54.
Saturday
 
A chance of showers and thunderstorms. Mostly sunny, with a high near 93.

 

Forecast from NOAA-NWS for Jackson WY.