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Gillette, WY Weather Tomorrow

Check tomorrow's local weather for Gillette and explore a complete 5 day forecast covering 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 Gillette area and around Campbell county, Wyoming.
Updated: Mon Sep 7th 2026 5:30 PM MDT
Gillette, WY Weather – 9-7 – Sunny
87° / 66°
Sunny
It will be sunny in Gillette, with a high of 87°F and a low of 66°F. Rainfall predicted to have a 57% chance with an estimated 0.06in. Winds will be strong at speeds peaking at 27mph and gusts of 24.2mph at 8 PM. Humidity levels should be comfortable, sitting around 33% on average, the maximum being 15% at 6 PM and 12% being its lowest at 9 PM. Barometric pressure is its highest of 29.88inHg at 11 PM, a lowest point of 29.69inHg at 6 PM with an avg 29.79inHg.
Gillette, WY Weather – 9-8 – Sunny
81° / 54°

Weather Tomorrow

Sunny
Gillette is set for a sunny day with temperatures peaking at 81°F and dipping to 54°F. There's a very small chance of rainfall, only about 1%. Wind will be moderate, blowing around 14mph on average and gusts of 24.2mph at 8 PM. The air will be relatively dry with average humidity levels below 30%, the maximum being 39% at 7 AM and 8% being its lowest at 6 PM. Barometric pressure is its highest of 30.14inHg at 11 PM, a lowest point of 29.88inHg at 6 PM with an avg 30inHg.
Gillette, WY Weather – 9-9 – Sunny
80° / 50°
Sunny
In Gillette, bright and sunny conditions with highs near 80°F and lows around 50°F. There's a very small chance of rainfall, only about 1%. Wind will be moderate, blowing around 16mph on average and gusts of 24.4mph at 6 PM. Humidity levels should be comfortable, sitting around 31% on average, the maximum being 61% at 6 AM and 12% being its lowest at 3 PM. Barometric pressure is its highest of 30.23inHg at 4 AM, a lowest point of 29.94inHg at 5 PM with an avg 30.09inHg.
Gillette, WY Weather – 9-10 – Sunny
89° / 59°
Sunny
Gillette may see sunshine, with daytime highs of 89°F and overnight lows near 59°F. There's a very small chance of rainfall, only about 1%. Wind will be moderate, blowing around 13mph on average and gusts of 21mph at 11 AM. The air will be relatively dry with average humidity levels below 30%, the maximum being 35% at 3 AM and 7% being its lowest at 7 PM. Barometric pressure is its highest of 30inHg at 5 AM, a lowest point of 29.61inHg at 6 PM with an avg 29.82inHg.
Gillette, WY Weather – 9-11 – Sunny
75° / 49°
Sunny
Daytime highs will reach 75°F with lows dropping to 49°F in Gillette, where it will be sunny. There's a very small chance of rainfall, only about 3%. Winds will be strong at speeds peaking at 21mph and gusts of 33.6mph at 2 AM. Humidity levels should be comfortable, sitting around 40% on average, the maximum being 70% at 10 PM and 16% being its lowest at 1 AM. Barometric pressure is its highest of 30.13inHg at 11 PM, a lowest point of 29.62inHg at 12 AM with an avg 29.91inHg.
Gillette, WY Weather – 9-12 – Overcast
74° / 45°
Overcast
In Gillette, it will be overcast with highs near 74°F and lows around 45°F. There might be light rainfall having a 11% chance with an estimated 0in. Winds will be strong at speeds peaking at 22mph and gusts of 34.9mph at 9 PM. Humidity levels should be comfortable, sitting around 54% on average, the maximum being 76% at 3 AM and 28% being its lowest at 3 PM. Barometric pressure is its highest of 30.14inHg at 12 AM, a lowest point of 29.72inHg at 6 PM with an avg 29.94inHg.

Currently

Partly Cloudy 84°F
29.66 inHg.
Barometer
14%
Humidity
WNW 37.4 mph
Wind
Partly Cloudy

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