Casper 7-day weather forecast

Written by:
March 23, 2026
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Casper 7-day weather forecast

Stacker created the forecast for Casper, Wyoming using data from OpenWeather. This week's high is 66 °F on Thursday, while the low is 23 °F on Friday. There are expected to be 2 sunny days and snow on 1 day this week.

NWS Riverton WY has issued a red flag warning until Tuesday at 08:00 PM.

Monday, April 13

- High of 61 °F, low of 43 °F (15% humidity)
- Sunny with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Near gale (37 mph wind)
- Sunrise at 6:26 AM, sunset at 7:44 PM
1 / 6
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Tuesday, April 14

- High of 57 °F, low of 42 °F (19% humidity)
- Mostly cloudy with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Fresh breeze (22 mph wind)
- Sunrise at 6:25 AM, sunset at 7:45 PM
2 / 6
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Wednesday, April 15

- High of 64 °F, low of 39 °F (22% humidity)
- Fair with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Strong breeze (30 mph wind)
- Sunrise at 6:23 AM, sunset at 7:46 PM
3 / 6
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Thursday, April 16

- High of 66 °F, low of 36 °F (20% humidity)
- Partly cloudy with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Near gale (35 mph wind)
- Sunrise at 6:21 AM, sunset at 7:47 PM
4 / 6
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Friday, April 17

- High of 35 °F, low of 23 °F (76% humidity)
- Overcast with a 100% chance of snow (7 mm of snow)
- High risk of harm from sun exposure (6 UV index)
- Moderate breeze (16 mph wind)
- Sunrise at 6:20 AM, sunset at 7:49 PM
- New moon
5 / 6
Stepan Bessmelnitsin // Shutterstock

Saturday, April 18

- High of 50 °F, low of 25 °F (37% humidity)
- Partly cloudy with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Fresh breeze (19 mph wind)
- Sunrise at 6:18 AM, sunset at 7:50 PM
6 / 6
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Sunday, April 19

- High of 65 °F, low of 38 °F (17% humidity)
- Overcast with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Strong breeze (25 mph wind)
- Sunrise at 6:16 AM, sunset at 7:51 PM

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