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Casper, WY Weather Tomorrow

Find out what tomorrow's weather looks like in Casper with a complete 5 day forecast featuring precipitation probability, daily and nightly weather conditions, high and low temperature trends, sunrise and sunset information, sky cover, wind speed, wind direction, and wind chill for the Casper area and around Natrona county, Wyoming.
Updated: Wed Sep 2nd 2026 9:15 AM MDT
Casper, WY Weather – 9-2 – Sunny
82° / 60°
Sunny
In Casper, it will be sunny with highs near 82°F and lows around 60°F. There might be light rainfall having a 17% chance with an estimated 0in. Winds will be strong at speeds peaking at 29mph and gusts of 36.3mph at 3 PM. Humidity levels should be comfortable, sitting around 32% on average, the maximum being 38% at 11 PM and 16% being its lowest at 3 PM. Barometric pressure is its highest of 29.84inHg at 10 AM, a lowest point of 29.68inHg at 5 PM with an avg 29.75inHg.
Casper, WY Weather – 9-3 – Sunny
81° / 59°

Weather Tomorrow

Sunny
In Casper, bright and sunny conditions with highs near 81°F and lows around 59°F. There's a very small chance of rainfall, only about 3%. Winds will be strong at speeds peaking at 23mph and gusts of 29.1mph at 4 PM. The air will be relatively dry with average humidity levels below 30%, the maximum being 44% at 4 AM and 9% being its lowest at 12 PM. Barometric pressure is its highest of 29.85inHg at 7 AM, a lowest point of 29.7inHg at 6 PM with an avg 29.79inHg.
Casper, WY Weather – 9-4 – Sunny
84° / 63°
Sunny
Highs will reach 84°F with lows near 63°F in Casper, where a sunny day is. There's a very small chance of rainfall, only about 1%. Winds will be strong at speeds peaking at 30mph and gusts of 34.2mph at 10 AM. The air will be relatively dry with average humidity levels below 30%, the maximum being 33% at 6 AM and 16% being its lowest at 6 PM. Barometric pressure is its highest of 29.84inHg at 11 PM, a lowest point of 29.74inHg at 6 PM with an avg 29.79inHg.
Casper, WY Weather – 9-5 – Sunny
83° / 60°
Sunny
Daytime highs will reach 83°F with lows dropping to 60°F in Casper, where it will be sunny. There's a moderate 36% chance of rainfall with an estimated 0.02in. Wind will be moderate, blowing around 15mph on average and gusts of 25.7mph at 5 PM. The air will be relatively dry with average humidity levels below 30%, the maximum being 37% at 9 PM and 19% being its lowest at 2 PM. Barometric pressure is its highest of 30inHg at 8 AM, a lowest point of 29.82inHg at 7 PM with an avg 29.91inHg.
Casper, WY Weather – 9-6 – Overcast
84° / 62°
Overcast
It will be overcast in Casper, with a high of 84°F and a low of 62°F. There might be light rainfall having a 17% chance with an estimated 0.01in. Wind will be moderate, blowing around 16mph on average and gusts of 26.4mph at 3 PM. Humidity levels should be comfortable, sitting around 41% on average, the maximum being 64% at 9 PM and 14% being its lowest at 1 PM. Barometric pressure is its highest of 30inHg at 12 AM, a lowest point of 29.78inHg at 2 PM with an avg 29.92inHg.
Casper, WY Weather – 9-7 – Overcast
79° / 60°
Overcast
It will be overcast in Casper, with a high of 79°F and a low of 60°F. There might be light rainfall having a 11% chance. Winds will be strong at speeds peaking at 21mph and gusts of 26.6mph at 9 AM. Humidity levels should be comfortable, sitting around 48% on average, the maximum being 70% at 6 AM and 28% being its lowest at 3 PM. Barometric pressure is its highest of 29.95inHg at 12 AM, a lowest point of 29.84inHg at 3 PM with an avg 29.9inHg.

Currently

Sunny 69°F
29.87 inHg.
Barometer
38%
Humidity
SW 21.2 mph
Wind
Sunny

5 Day Forecast Nearby

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