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Roscoe, IL Weather Tomorrow

Everything you need for tomorrow's Roscoe weather and the next 5 days is here, 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 Roscoe area and around Winnebago county, Illinois.
Updated: Sun Sep 20th 2026 12:45 PM CDT
Roscoe, IL Weather – 9-20 – Light Rain Shower
68° / 59°
Light Rain Shower
Roscoe is set for rain with temperatures peaking at 68°F and dipping to 59°F. The chance of rain is 93% with an estimated 2.3in. Wind will be moderate, blowing around 17mph on average and gusts of 31.8mph at 7 PM. High humidity with average of 94% is anticipated, the maximum being 95% at 2 PM and 83% being its lowest at 10 PM. Barometric pressure is its highest of 30.07inHg at 9 PM, a lowest point of 29.99inHg at 2 PM with an avg 30.03inHg.
Roscoe, IL Weather – 9-21 – Scattered Showers
59° / 55°

Weather Tomorrow

Scattered Showers
Highs will reach 59°F with lows near 55°F in Roscoe, where passing showers are. Rainfall predicted to have a 67% chance with an estimated 0.04in. Wind will be moderate, blowing around 16mph on average and gusts of 29.3mph at 1 AM. High humidity with average of 81% is anticipated, the maximum being 88% at 12 AM and 75% being its lowest at 11 PM. Barometric pressure is its highest of 30.17inHg at 10 PM, a lowest point of 30.07inHg at 12 AM with an avg 30.12inHg.
Roscoe, IL Weather – 9-22 – Overcast
59° / 52°
Overcast
Daytime highs will reach 59°F with lows dropping to 52°F in Roscoe, where skies will be overcast. There's a moderate 36% chance of rainfall with an estimated 0.01in. Wind will be moderate, blowing around 13mph on average and gusts of 24.7mph at 12 AM. The humidity will be on the higher side, averaging about 70%, the maximum being 76% at 11 PM and 60% being its lowest at 2 PM. Barometric pressure is its highest of 30.3inHg at 8 PM, a lowest point of 30.17inHg at 12 AM with an avg 30.25inHg.
Roscoe, IL Weather – 9-23 – Sunny
61° / 50°
Sunny
It will be sunny in Roscoe, with a high of 61°F and a low of 50°F. There might be light rainfall having a 20% chance with an estimated 0in. Wind will be moderate, blowing around 14mph on average and gusts of 24.6mph at 1 AM. High humidity with average of 84% is anticipated, the maximum being 95% at 7 AM and 76% being its lowest at 3 PM. Barometric pressure is its highest of 30.37inHg at 9 PM, a lowest point of 30.31inHg at 12 AM with an avg 30.35inHg.
Roscoe, IL Weather – 9-24 – Overcast
66° / 52°
Overcast
Highs will reach 66°F with lows near 52°F in Roscoe, where overcast is. There might be light rainfall having a 21% chance with an estimated 0in. Wind will be moderate, blowing around 13mph on average and gusts of 24.2mph at 8 AM. The humidity will be on the higher side, averaging about 79%, the maximum being 92% at 4 AM and 55% being its lowest at 2 PM. Barometric pressure is its highest of 30.38inHg at 10 AM, a lowest point of 30.18inHg at 4 PM with an avg 30.33inHg.
Roscoe, IL Weather – 9-25 – Scattered Showers
66° / 54°
Scattered Showers
In Roscoe, showers likely at times with highs near 66°F and lows around 54°F. Rainfall predicted to have a 57% chance with an estimated 0.02in. Winds will be light at 8mph and gusts of 14.6mph at 12 AM. High humidity with average of 85% is anticipated, the maximum being 95% at 10 PM and 70% being its lowest at 4 PM. Barometric pressure is its highest of 30.35inHg at 12 AM, a lowest point of 30.17inHg at 4 PM with an avg 30.21inHg.

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