Casper, WY Weather Forecast
Local 7-day forecast
Mostly Sunny then Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Casper, WY in one place.
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 75. Southwest wind 10 to 29 mph, with gusts as high as 36 mph.
Local Weather Overview
This forecast page for Casper, WY is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: May 27, 2026 11:29 PM MDT.
The active forecast window currently covers May 30 to Jun 3, 2026 for Casper, WY.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 30 to Jun 3, 2026
- Latest sync
- May 27, 2026 11:29 PM MDT
- Forecast office
- RIW
- Source
- NOAA / NWS
Daily Outlook
This Week in Casper
Wednesday looks like the warmest upcoming period in Casper at 78 degrees F.
Sunday Night is the coolest period ahead with temperatures near 46 degrees F.
The strongest winds are forecast for Saturday at about 10 to 29 mph SW.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- May 27, 2026 11:29 PM MDT
- Coverage
- 5 days
- Time zone
- America/Denver
- Forecast office
- RIW
- Radar station
- KRIW
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 47. Southwest wind around 22 mph, with gusts as high as 32 mph.
A slight chance of rain showers before noon, then a slight chance of showers and thunderstorms. Sunny, with a high near 74. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 46. Chance of precipitation is 20%.
A chance of showers and thunderstorms after noon. Sunny, with a high near 76.
A slight chance of showers and thunderstorms before midnight. Mostly clear, with a low around 46.
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 77.
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 47.
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 78.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
May 30
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
75°F |
10 to 29 mph
SW
|
|
Saturday Night
May 30
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
47°F |
22 mph
SW
|
|
Sunday
May 31
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
74°F |
20 to 25 mph
SW
|
|
Sunday Night
May 31
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
46°F |
6 to 12 mph
SW
|
|
Monday
Jun 1
|
Sunny then Chance Showers And Thunderstorms
|
76°F |
5 to 9 mph
SW
|
|
Monday Night
Jun 1
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
46°F |
6 to 9 mph
ENE
|
|
Tuesday
Jun 2
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
77°F |
3 to 7 mph
WSW
|
|
Tuesday Night
Jun 2
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
47°F |
6 to 10 mph
ENE
|
|
Wednesday
Jun 3
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
78°F |
3 to 7 mph
NNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Casper.
