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West Branch, IA Weather Tomorrow

See how tomorrow's weather in West Branch compares with the upcoming 5 day forecast, including precipitation chances, day and night conditions, high and low temperatures in Fahrenheit and Celsius, sunrise, sunset, sky conditions, wind chill, and wind speed with direction for the West Branch area and around Johnson county, Iowa.
Updated: Tue Oct 20th 2026 8:15 PM CDT
West Branch, IA Weather – 10-20 – Sunny
67° / 47°
Sunny
Highs will reach 67°F with lows near 47°F in West Branch, where a sunny day is. There's a very small chance of rainfall, only about 3%. Winds will be light at 8mph and gusts of 7mph at 10 PM. Humidity levels should be comfortable, sitting around 57% on average, the maximum being 67% at 11 PM and 64% being its lowest at 9 PM. Barometric pressure is its highest of 30.26inHg at 9 PM, a lowest point of 30.26inHg at 9 PM with an avg 30.26inHg.
West Branch, IA Weather – 10-21 – Sunny
70° / 50°

Weather Tomorrow

Sunny
Highs will reach 70°F with lows near 50°F in West Branch, where a sunny day is. There's a very small chance of rainfall, only about 5%. Winds will be light at 7mph and gusts of 13.9mph at 10 PM. The humidity will be on the higher side, averaging about 63%, the maximum being 73% at 8 AM and 48% being its lowest at 3 PM. Barometric pressure is its highest of 30.26inHg at 12 AM, a lowest point of 30.17inHg at 3 PM with an avg 30.22inHg.
West Branch, IA Weather – 10-22 – Sunny
70° / 53°
Sunny
West Branch could see sunshine with daytime highs of 70°F and nighttime lows near 53°F. There's a very small chance of rainfall, only about 5%. Winds will be light at 8mph and gusts of 10.1mph at 7 AM. The humidity will be on the higher side, averaging about 66%, the maximum being 78% at 8 AM and 47% being its lowest at 3 PM. Barometric pressure is its highest of 30.27inHg at 10 AM, a lowest point of 30.19inHg at 4 PM with an avg 30.23inHg.
West Branch, IA Weather – 10-23 – Sunny
71° / 53°
Sunny
In West Branch, bright and sunny conditions with highs near 71°F and lows around 53°F. There's a very small chance of rainfall, only about 6%. Wind will be moderate, blowing around 13mph on average and gusts of 30.5mph at 11 PM. The humidity will be on the higher side, averaging about 64%, the maximum being 77% at 6 AM and 43% being its lowest at 3 PM. Barometric pressure is its highest of 30.29inHg at 9 AM, a lowest point of 30.19inHg at 4 PM with an avg 30.24inHg.
West Branch, IA Weather – 10-24 – Overcast
72° / 57°
Overcast
In West Branch, skies will be overcast with highs near 72°F and lows around 57°F. There might be light rainfall having a 12% chance. Wind will be moderate, blowing around 15mph on average and gusts of 30mph at 4 AM. Humidity levels should be comfortable, sitting around 58% on average, the maximum being 64% at 8 AM and 44% being its lowest at 2 PM. Barometric pressure is its highest of 30.3inHg at 10 AM, a lowest point of 30.23inHg at 4 PM with an avg 30.26inHg.
West Branch, IA Weather – 10-25 – Overcast
71° / 55°
Overcast
West Branch is set for cloud-filled skies with temperatures peaking at 71°F and dipping to 55°F. There might be light rainfall having a 15% chance. Wind will be moderate, blowing around 11mph on average and gusts of 21.3mph at 12 AM. The humidity will be on the higher side, averaging about 63%, the maximum being 78% at 7 PM and 53% being its lowest at 1 PM. Barometric pressure is its highest of 30.3inHg at 10 AM, a lowest point of 30.23inHg at 4 PM with an avg 30.26inHg.

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