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Washington, MO Weather Forecast for 5-Days

Updated: Wed Feb 18th 2026 6:45 AM CST

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Washington, MO Weather – 2-18 – Sunny
74° / 52°
Sunny
It will be sunny in Washington, with a high of 74°F and a low of 52°F. Wind will be moderate, blowing around 19mph on average and gusts of 20mph at 7 AM. Humidity levels should be comfortable, sitting around 57% on average, the maximum being 82% at 7 AM and 19% being its lowest at 4 PM. Barometric pressure is its highest of 29.75inHg at 10 AM, a lowest point of 29.63inHg at 11 PM with an avg 29.69inHg.
Washington, MO Weather – 2-19 – Overcast
67° / 47°

Weather Tomorrow

Overcast
Daytime highs will reach 67°F with lows dropping to 47°F in Washington, where skies will be overcast. Wind will be moderate, blowing around 18mph on average and gusts of 26.7mph at 8 PM. The humidity will be on the higher side, averaging about 72%, the maximum being 97% at 10 AM and 36% being its lowest at 7 PM. Barometric pressure is its highest of 29.68inHg at 1 AM, a lowest point of 29.5inHg at 4 PM with an avg 29.59inHg.
Washington, MO Weather – 2-20 – Sunny
48° / 33°
Sunny
In Washington, it will be sunny with highs near 48°F and lows around 33°F. Wind will be moderate, blowing around 17mph on average and gusts of 23.5mph at 12 AM. The humidity will be on the higher side, averaging about 62%, the maximum being 73% at 7 AM and 51% being its lowest at 4 PM. Barometric pressure is its highest of 29.99inHg at 10 PM, a lowest point of 29.68inHg at 12 AM with an avg 29.85inHg.
Washington, MO Weather – 2-21 – Heavy Snow
35° / 29°
Heavy Snow
Washington may see heavy Snow, with daytime highs of 35°F and overnight lows near 29°F. Rainfall predicted to have a 64% chance with an estimated 0.2in. Snow is likely with a 19% chance with an estimated 1.5in. Wind will be moderate, blowing around 11mph on average and gusts of 16.5mph at 8 PM. The humidity will be on the higher side, averaging about 68%, the maximum being 88% at 12 PM and 44% being its lowest at 7 PM. Barometric pressure is its highest of 30.35inHg at 9 PM, a lowest point of 29.72inHg at 12 AM with an avg 30.17inHg.
Washington, MO Weather – 2-22 – Partly Cloudy
33° / 22°
Partly Cloudy
In Washington, overcast conditions are likely with a high near 33°F and a low around 22°F. Wind will be moderate, blowing around 18mph on average and gusts of 23mph at 6 PM. Humidity levels should be comfortable, sitting around 54% on average, the maximum being 75% at 3 AM and 40% being its lowest at 11 AM. Barometric pressure is its highest of 30.59inHg at 11 PM, a lowest point of 30.07inHg at 12 AM with an avg 30.46inHg.
Washington, MO Weather – 2-23 – Sunny
34° / 17°
Sunny
Daytime highs will reach 34°F with lows dropping to 17°F in Washington, where it will be sunny. Wind will be moderate, blowing around 14mph on average and gusts of 20.1mph at 12 AM. Humidity levels should be comfortable, sitting around 50% on average, the maximum being 61% at 6 AM and 34% being its lowest at 3 PM. Barometric pressure is its highest of 30.67inHg at 9 AM, a lowest point of 30.51inHg at 11 PM with an avg 30.59inHg.

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