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Cass County, IA Weather Tomorrow

Check the latest weather forecast for Cass County tomorrow and over the next 5 days with 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 Cass County area.
Updated: Fri Sep 4th 2026 5:30 PM CDT
Cass County, IA Weather – 9-4 – Sunny
94° / 71°
Sunny
Cass County is set for a sunny day with temperatures peaking at 94°F and dipping to 71°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 24.2mph at 10 PM. The humidity will be on the higher side, averaging about 65%, the maximum being 86% at 11 PM and 49% being its lowest at 6 PM. Barometric pressure is its highest of 29.89inHg at 11 PM, a lowest point of 29.74inHg at 7 PM with an avg 29.81inHg.
Cass County, IA Weather – 9-5 – Overcast
100° / 74°

Weather Tomorrow

Overcast
In Cass County, skies will be overcast with highs near 100°F and lows around 74°F. Rainfall predicted to have a 57% chance with an estimated 0.14in. Wind will be moderate, blowing around 11mph on average and gusts of 20.8mph at 8 PM. Humidity levels should be comfortable, sitting around 54% on average, the maximum being 85% at 12 AM and 23% being its lowest at 4 PM. Barometric pressure is its highest of 29.92inHg at 8 AM, a lowest point of 29.77inHg at 6 PM with an avg 29.87inHg.
Cass County, IA Weather – 9-6 – Overcast
95° / 71°
Overcast
Daytime highs will reach 95°F with lows dropping to 71°F in Cass County, where skies will be overcast. There's a moderate 37% chance of rainfall with an estimated 0.02in. Wind will be moderate, blowing around 12mph on average and gusts of 25.1mph at 11 PM. The humidity will be on the higher side, averaging about 62%, the maximum being 94% at 7 AM and 29% being its lowest at 5 PM. Barometric pressure is its highest of 29.98inHg at 11 AM, a lowest point of 29.85inHg at 6 PM with an avg 29.92inHg.
Cass County, IA Weather – 9-7 – Overcast
92° / 67°
Overcast
Daytime highs will reach 92°F with lows dropping to 67°F in Cass County, where it will be overcast. There's a moderate 36% chance of rainfall with an estimated 0.02in. Wind will be moderate, blowing around 17mph on average and gusts of 41.4mph at 10 PM. The humidity will be on the higher side, averaging about 65%, the maximum being 90% at 5 AM and 33% being its lowest at 4 PM. Barometric pressure is its highest of 29.98inHg at 9 AM, a lowest point of 29.83inHg at 6 PM with an avg 29.91inHg.
Cass County, IA Weather – 9-8 – Overcast
103° / 76°
Overcast
Cass County may see overcast, with daytime highs of 103°F and overnight lows near 76°F. There's a moderate 36% chance of rainfall with an estimated 0.03in. Winds will be strong at speeds peaking at 21mph and gusts of 39.4mph at 5 AM. Humidity levels should be comfortable, sitting around 40% on average, the maximum being 80% at 11 PM and 19% being its lowest at 3 PM. Barometric pressure is its highest of 29.93inHg at 11 PM, a lowest point of 29.73inHg at 6 PM with an avg 29.83inHg.
Cass County, IA Weather – 9-9 – Scattered Showers
88° / 64°
Scattered Showers
In Cass County, passing showers are likely with a high near 88°F and a low around 64°F. Rainfall predicted to have a 57% chance with an estimated 0.09in. Wind will be moderate, blowing around 13mph on average and gusts of 24.6mph at 12 AM. Humidity levels should be comfortable, sitting around 47% on average, the maximum being 90% at 12 AM and 19% being its lowest at 4 PM. Barometric pressure is its highest of 30.15inHg at 1 PM, a lowest point of 29.98inHg at 12 AM with an avg 30.1inHg.

Currently

Sunny 94°F
29.77 inHg.
Barometer
48%
Humidity
SSW 13.3 mph
Wind
Sunny

5 Day Forecast Nearby

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