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Defiance, MO Weather Tomorrow

The extended forecast for Defiance begins with tomorrow's weather and continues through the next 5 days with 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 Defiance area and around St. Charles county, Missouri.
Updated: Tue Oct 20th 2026 2:45 AM CDT
Defiance, MO Weather – 10-20 – Sunny
73° / 49°
Sunny
It will be sunny in Defiance, with a high of 73°F and a low of 49°F. There's a very small chance of rainfall, only about 2%. Winds will be light at 6mph and gusts of 15.4mph at 3 PM. Humidity levels should be comfortable, sitting around 48% on average, the maximum being 66% at 7 AM and 30% being its lowest at 2 PM. Barometric pressure is its highest of 30.35inHg at 9 AM, a lowest point of 30.24inHg at 5 PM with an avg 30.29inHg.
Defiance, MO Weather – 10-21 – Sunny
76° / 52°

Weather Tomorrow

Sunny
Highs will reach 76°F with lows near 52°F in Defiance, where a sunny day is. There's a very small chance of rainfall, only about 2%. Winds will be light at 4mph and gusts of 14.3mph at 2 PM. Humidity levels should be comfortable, sitting around 44% on average, the maximum being 55% at 7 AM and 28% being its lowest at 3 PM. Barometric pressure is its highest of 30.28inHg at 9 AM, a lowest point of 30.17inHg at 4 PM with an avg 30.23inHg.
Defiance, MO Weather – 10-22 – Sunny
77° / 54°
Sunny
Daytime highs will reach 77°F with lows dropping to 54°F in Defiance, where bright and sunny conditions. There's a very small chance of rainfall, only about 1%. Winds will be light at 6mph and gusts of 15.7mph at 3 PM. Humidity levels should be comfortable, sitting around 43% on average, the maximum being 58% at 7 AM and 28% being its lowest at 2 PM. Barometric pressure is its highest of 30.26inHg at 10 AM, a lowest point of 30.16inHg at 4 PM with an avg 30.21inHg.
Defiance, MO Weather – 10-23 – Sunny
78° / 56°
Sunny
Defiance is set for a sunny day with temperatures peaking at 78°F and dipping to 56°F. There's a very small chance of rainfall, only about 2%. Winds will be light at 9mph and gusts of 16.1mph at 10 PM. Humidity levels should be comfortable, sitting around 44% on average, the maximum being 55% at 7 AM and 28% being its lowest at 3 PM. Barometric pressure is its highest of 30.28inHg at 11 AM, a lowest point of 30.19inHg at 4 PM with an avg 30.23inHg.
Defiance, MO Weather – 10-24 – Overcast
80° / 56°
Overcast
Daytime highs will reach 80°F with lows dropping to 56°F in Defiance, where skies will be overcast. There's a very small chance of rainfall, only about 7%. Winds will be light at 9mph and gusts of 22.9mph at 10 PM. Humidity levels should be comfortable, sitting around 44% on average, the maximum being 56% at 6 AM and 26% being its lowest at 3 PM. Barometric pressure is its highest of 30.35inHg at 9 AM, a lowest point of 30.25inHg at 4 PM with an avg 30.29inHg.
Defiance, MO Weather – 10-25 – Overcast
79° / 58°
Overcast
Defiance is set for overcast with temperatures peaking at 79°F and dipping to 58°F. There's a very small chance of rainfall, only about 10%. Wind will be moderate, blowing around 11mph on average and gusts of 25.3mph at 10 PM. Humidity levels should be comfortable, sitting around 43% on average, the maximum being 56% at 7 AM and 28% being its lowest at 4 PM. Barometric pressure is its highest of 30.36inHg at 10 AM, a lowest point of 30.25inHg at 4 PM with an avg 30.3inHg.

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