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Dewey, IL Weather Tomorrow

See tomorrow's forecast for Dewey together with a reliable 5 day outlook featuring 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 Dewey area and around Champaign county, Illinois.
Updated: Tue Sep 8th 2026 1:15 PM CDT
Dewey, IL Weather – 9-8 – Overcast
86° / 58°
Overcast
In Dewey, it will be overcast with highs near 86°F and lows around 58°F. There's a very small chance of rainfall, only about 10%. Winds will be light at 9mph and gusts of 16.1mph at 10 PM. The humidity will be on the higher side, averaging about 66%, the maximum being 65% at 9 PM and 38% being its lowest at 3 PM. Barometric pressure is its highest of 30.08inHg at 2 PM, a lowest point of 30.02inHg at 8 PM with an avg 30.04inHg.
Dewey, IL Weather – 9-9 – Sunny
89° / 71°

Weather Tomorrow

Sunny
In Dewey, it will be sunny with highs near 89°F and lows around 71°F. There's a moderate 45% chance of rainfall with an estimated 0.03in. Wind will be moderate, blowing around 12mph on average and gusts of 31.8mph at 5 AM. The humidity will be on the higher side, averaging about 74%, the maximum being 94% at 11 PM and 48% being its lowest at 2 PM. Barometric pressure is its highest of 30.04inHg at 10 AM, a lowest point of 29.93inHg at 6 PM with an avg 29.99inHg.
Dewey, IL Weather – 9-10 – Overcast
77° / 66°
Overcast
Dewey is set for overcast with temperatures peaking at 77°F and dipping to 66°F. Rainfall predicted to have a 69% chance with an estimated 0.06in. Winds will be light at 8mph and gusts of 18.1mph at 1 PM. High humidity with average of 85% is anticipated, the maximum being 95% at 12 AM and 71% being its lowest at 5 PM. Barometric pressure is its highest of 29.98inHg at 11 AM, a lowest point of 29.91inHg at 6 PM with an avg 29.95inHg.
Dewey, IL Weather – 9-11 – Sunny
85° / 60°
Sunny
Sunshine is in the forecast for Dewey, with a high of 85°F and a low of 60°F. There's a very small chance of rainfall, only about 10%. Winds will be light at 9mph and gusts of 16.3mph at 10 PM. The humidity will be on the higher side, averaging about 78%, the maximum being 91% at 12 AM and 52% being its lowest at 4 PM. Barometric pressure is its highest of 29.97inHg at 2 AM, a lowest point of 29.82inHg at 5 PM with an avg 29.91inHg.
Dewey, IL Weather – 9-12 – Overcast
86° / 67°
Overcast
Cloud-filled skies are in the forecast for Dewey, with a high of 86°F and a low of 67°F. Rainfall predicted to have a 51% chance with an estimated 0.03in. Wind will be moderate, blowing around 18mph on average and gusts of 28.9mph at 7 PM. The humidity will be on the higher side, averaging about 76%, the maximum being 94% at 6 AM and 47% being its lowest at 4 PM. Barometric pressure is its highest of 29.96inHg at 7 PM, a lowest point of 29.86inHg at 4 AM with an avg 29.91inHg.
Dewey, IL Weather – 9-13 – Overcast
82° / 71°
Overcast
It will be overcast in Dewey, with a high of 82°F and a low of 71°F. There might be light rainfall having a 20% chance. Winds will be light at 8mph and gusts of 10.7mph at 11 AM. The humidity will be on the higher side, averaging about 74%, the maximum being 89% at 12 AM and 60% being its lowest at 10 AM. Barometric pressure is its highest of 30.03inHg at 10 AM, a lowest point of 29.95inHg at 5 PM with an avg 29.99inHg.

Currently

Overcast 84°F
30.1 inHg.
Barometer
40%
Humidity
S 9.4 mph
Wind
Overcast

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