National Weather Service Forecast for: Casper WY
Issued by: National Weather Service Riverton, WY
Updated: 4:13 pm MDT Jul 4, 2025
 
Tonight

Tonight: Scattered showers and thunderstorms, mainly before 8pm. Some of the storms could be severe. Partly cloudy, with a low around 58. Breezy, with a west northwest wind 12 to 17 mph becoming east southeast 6 to 11 mph in the evening. Winds could gust as high as 24 mph. Chance of precipitation is 30%.
Severe
T-Storms
and Breezy
then Partly
Cloudy
 Saturday

Saturday: Isolated showers and thunderstorms after 1pm. Sunny, with a high near 88. Breezy, with a west northwest wind 6 to 11 mph becoming west southwest 15 to 20 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 20%.
Sunny then
Isolated
T-storms and
Breezy
 Saturday
Night
Saturday Night: Isolated showers and thunderstorms before 9pm. Partly cloudy, with a low around 54. Breezy, with a west wind 12 to 17 mph becoming light and variable after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 10%.
Isolated
T-storms and
Breezy then
Partly Cloudy
 Sunday

Sunday: A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 87. Calm wind becoming north 5 to 8 mph in the afternoon.
Sunny then
Slight Chance
T-storms

 Sunday
Night
Sunday Night: A 10 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 54. East wind 5 to 9 mph becoming light and variable after midnight.
Slight Chance
T-storms then
Mostly Clear

 Monday

Monday: Sunny, with a high near 90. Calm wind becoming northwest 5 to 9 mph in the morning.
Sunny


 Monday
Night
Monday Night: Mostly clear, with a low around 55. North wind 6 to 9 mph becoming south southeast after midnight.
Mostly Clear


 Tuesday

Tuesday: Sunny, with a high near 95.
Sunny


 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 58.
Mostly Clear
Lo 58 °F Hi 88 °F Lo 54 °F Hi 87 °F Lo 54 °F Hi 90 °F Lo 55 °F Hi 95 °F Lo 58 °F

Hazardous Weather Outlook
 

Tonight
 
 Scattered showers and thunderstorms, mainly before 8pm. Some of the storms could be severe. Partly cloudy, with a low around 58. Breezy, with a west northwest wind 12 to 17 mph becoming east southeast 6 to 11 mph in the evening. Winds could gust as high as 24 mph. Chance of precipitation is 30%.
Saturday
 
 Isolated showers and thunderstorms after 1pm. Sunny, with a high near 88. Breezy, with a west northwest wind 6 to 11 mph becoming west southwest 15 to 20 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 20%.
Saturday Night
 
 Isolated showers and thunderstorms before 9pm. Partly cloudy, with a low around 54. Breezy, with a west wind 12 to 17 mph becoming light and variable after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 10%.
Sunday
 
 A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 87. Calm wind becoming north 5 to 8 mph in the afternoon.
Sunday Night
 
 A 10 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 54. East wind 5 to 9 mph becoming light and variable after midnight.
Monday
 
 Sunny, with a high near 90. Calm wind becoming northwest 5 to 9 mph in the morning.
Monday Night
 
 Mostly clear, with a low around 55. North wind 6 to 9 mph becoming south southeast after midnight.
Tuesday
 
 Sunny, with a high near 95.
Tuesday Night
 
 Mostly clear, with a low around 58.
Wednesday
 
 Sunny and hot, with a high near 97.
Wednesday Night
 
 Partly cloudy, with a low around 60.
Thursday
 
 A slight chance of showers and thunderstorms. Partly sunny, with a high near 92.
Thursday Night
 
 A slight chance of showers and thunderstorms. Partly cloudy, with a low around 55.
Friday
 
 A slight chance of showers and thunderstorms. Sunny, with a high near 86.

 

Forecast from NOAA-NWS for Casper WY.