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Custer County, ID Weather Tomorrow

See what tomorrow's weather has in store for Custer County with a reliable 5 day forecast featuring precipitation potential, daytime and nighttime forecasts, temperature highs and lows in Fahrenheit and Celsius, sunrise and sunset times, cloud cover, wind chill, wind speed, and wind direction for the Custer County area.
Updated: Mon Aug 31st 2026 7:45 AM MDT
Custer County, ID Weather – 8-31 – Sunny
74° / 39°
Sunny
Daytime highs will reach 74°F with lows dropping to 39°F in Custer County, where bright and sunny conditions. There's a very small chance of rainfall, only about 1%. Wind will be moderate, blowing around 11mph on average and gusts of 19.7mph at 6 PM. The air will be relatively dry with average humidity levels below 30%, the maximum being 28% at 11 PM and 10% being its lowest at 12 PM. Barometric pressure is its highest of 30.06inHg at 8 AM, a lowest point of 29.76inHg at 5 PM with an avg 29.87inHg.
Custer County, ID Weather – 9-1 – Overcast
73° / 46°

Weather Tomorrow

Overcast
In Custer County, skies will be overcast with highs near 73°F and lows around 46°F. Rainfall predicted to have a 63% chance with an estimated 0.28in. Wind will be moderate, blowing around 16mph on average and gusts of 21.9mph at 4 PM. Humidity levels should be comfortable, sitting around 39% on average, the maximum being 88% at 11 PM and 17% being its lowest at 2 PM. Barometric pressure is its highest of 29.95inHg at 11 PM, a lowest point of 29.7inHg at 6 PM with an avg 29.87inHg.
Custer County, ID Weather – 9-2 – Overcast
61° / 44°
Overcast
Cloud-filled skies are in the forecast for Custer County, with a high of 61°F and a low of 44°F. Rainfall predicted to have a 60% chance with an estimated 0.1in. Wind will be moderate, blowing around 19mph on average and gusts of 24.4mph at 5 PM. Humidity levels should be comfortable, sitting around 60% on average, the maximum being 94% at 7 AM and 22% being its lowest at 6 PM. Barometric pressure is its highest of 29.95inHg at 12 AM, a lowest point of 29.72inHg at 11 AM with an avg 29.85inHg.
Custer County, ID Weather – 9-3 – Sunny
65° / 39°
Sunny
In Custer County, it will be sunny with highs near 65°F and lows around 39°F. There might be light rainfall having a 17% chance with an estimated 0in. Wind will be moderate, blowing around 12mph on average and gusts of 23.7mph at 11 AM. Humidity levels should be comfortable, sitting around 37% on average, the maximum being 87% at 11 PM and 17% being its lowest at 2 PM. Barometric pressure is its highest of 29.94inHg at 8 AM, a lowest point of 29.71inHg at 5 PM with an avg 29.84inHg.
Custer County, ID Weather – 9-4 – Partly Cloudy
67° / 38°
Partly Cloudy
Daytime highs will reach 67°F with lows dropping to 38°F in Custer County, where skies will be cloudy. There's a very small chance of rainfall, only about 5%. Wind will be moderate, blowing around 13mph on average and gusts of 20mph at 3 PM. Humidity levels should be comfortable, sitting around 46% on average, the maximum being 90% at 1 AM and 21% being its lowest at 2 PM. Barometric pressure is its highest of 29.88inHg at 8 AM, a lowest point of 29.72inHg at 5 PM with an avg 29.8inHg.
Custer County, ID Weather – 9-5 – Sunny
71° / 43°
Sunny
Custer County could see a sunny day with daytime highs of 71°F and nighttime lows near 43°F. There might be light rainfall having a 17% chance with an estimated 0in. Wind will be moderate, blowing around 13mph on average and gusts of 17mph at 3 PM. Humidity levels should be comfortable, sitting around 46% on average, the maximum being 84% at 3 AM and 19% being its lowest at 6 PM. Barometric pressure is its highest of 30inHg at 9 AM, a lowest point of 29.83inHg at 3 PM with an avg 29.93inHg.

Currently

Clear 39°F
30.06 inHg.
Barometer
24%
Humidity
WSW 5.8 mph
Wind
Clear

5 Day Forecast Nearby

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