Casper, WY Weather Forecast
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Casper Weather Forecast
| TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT |
| Sunny | Clear | Sunny | Mostly Clear | Mostly Sunny | Clear | Sunny | Mostly Clear | Sunny | Mostly Clear | Partly Cloudy | Chance of Showers |
| Hi: 65°FHi: 18°C | Lo: 40°FLo: 4°C | Hi: 60°FHi: 16°C | Lo: 35°FLo: 2°C | Hi: 61°FHi: 16°C | Lo: 41°FLo: 5°C | Hi: 65°FHi: 18°C | Lo: 41°FLo: 5°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 70°FHi: 21°C | Lo: 45°FLo: 7°C |
| POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 931 AM MDT Sat Oct 17 2026 

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Issued: 1233 PM MDT Sat Oct 17 2026
Key Messages
- Warmer today, with most areas reaching highs in the 60s. Johnson County is especially warm, with highs in the mid to upper 70s.
- Mostly clear and warm conditions continue into early next week, with highs again in the 60s.
- A low chance for showers returns to far western Wyoming on Tuesday, but any rain accumulations are minimal.
Discussion
... Issued at 207 AM MDT Sat Oct 17 2026
H5 ridging dominates the weather today, bringing much warmer temperatures across western and central Wyoming. ...
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