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Rollo, IL Weather Tomorrow

Prepare for the week ahead with tomorrow's Rollo weather forecast and a complete 5 day outlook covering 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 throughout the Rollo area and around DeKalb county, Illinois.
Updated: Sat Aug 29th 2026 9:45 AM CDT
Rollo, IL Weather – 8-29 – Overcast
82° / 60°
Overcast
Daytime highs will reach 82°F with lows dropping to 60°F in Rollo, where it will be overcast. There might be light rainfall having a 19% chance with an estimated 0in. Wind will be moderate, blowing around 13mph on average and gusts of 30.2mph at 11 PM. The humidity will be on the higher side, averaging about 79%, the maximum being 95% at 9 PM and 49% being its lowest at 2 PM. Barometric pressure is its highest of 30.12inHg at 10 AM, a lowest point of 29.99inHg at 7 PM with an avg 30.04inHg.
Rollo, IL Weather – 8-30 – Scattered Showers
85° / 66°

Weather Tomorrow

Scattered Showers
Rollo may see passing showers, with daytime highs of 85°F and overnight lows near 66°F. Rainfall predicted to have a 57% chance with an estimated 0.04in. Wind will be moderate, blowing around 15mph on average and gusts of 37.3mph at 8 PM. The humidity will be on the higher side, averaging about 75%, the maximum being 90% at 6 AM and 53% being its lowest at 11 PM. Barometric pressure is its highest of 29.98inHg at 7 AM, a lowest point of 29.85inHg at 7 PM with an avg 29.92inHg.
Rollo, IL Weather – 8-31 – Overcast
89° / 69°
Overcast
Highs will reach 89°F with lows near 69°F in Rollo, where overcast is. There's a moderate 40% chance of rainfall with an estimated 0.02in. Wind will be moderate, blowing around 15mph on average and gusts of 39.4mph at 11 PM. The humidity will be on the higher side, averaging about 66%, the maximum being 81% at 7 AM and 46% being its lowest at 1 AM. Barometric pressure is its highest of 29.89inHg at 10 AM, a lowest point of 29.79inHg at 11 PM with an avg 29.84inHg.
Rollo, IL Weather – 9-1 – Overcast
89° / 76°
Overcast
In Rollo, it will be overcast with highs near 89°F and lows around 76°F. There might be light rainfall having a 11% chance with an estimated 0in. Wind will be moderate, blowing around 14mph on average and gusts of 39mph at 11 PM. The humidity will be on the higher side, averaging about 64%, the maximum being 78% at 8 PM and 46% being its lowest at 12 AM. Barometric pressure is its highest of 29.88inHg at 9 PM, a lowest point of 29.81inHg at 12 AM with an avg 29.85inHg.
Rollo, IL Weather – 9-2 – Sunny
89° / 75°
Sunny
In Rollo, it will be sunny with highs near 89°F and lows around 75°F. There's a very small chance of rainfall, only about 5%. Wind will be moderate, blowing around 14mph on average and gusts of 38.1mph at 12 AM. The humidity will be on the higher side, averaging about 66%, the maximum being 82% at 11 PM and 43% being its lowest at 12 AM. Barometric pressure is its highest of 29.9inHg at 11 PM, a lowest point of 29.82inHg at 6 PM with an avg 29.84inHg.
Rollo, IL Weather – 9-3 – Sunny
85° / 71°
Sunny
It will be sunny in Rollo, with a high of 85°F and a low of 71°F. There's a very small chance of rainfall, only about 9%. Winds will be light at 9mph and gusts of 19mph at 10 PM. The humidity will be on the higher side, averaging about 80%, the maximum being 94% at 7 AM and 60% being its lowest at 4 PM. Barometric pressure is its highest of 29.97inHg at 9 AM, a lowest point of 29.91inHg at 12 AM with an avg 29.95inHg.

Currently

Overcast 69°F
30.13 inHg.
Barometer
79%
Humidity
S 11.9 mph
Wind
Overcast

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