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Effingham, IL Weather Tomorrow

Find tomorrow's weather forecast for Effingham with an accurate 5 day outlook showing 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 Effingham area and around Effingham county, Illinois.
Updated: Sat Aug 29th 2026 8:45 AM CDT
Effingham, IL Weather – 8-29 – Overcast
87° / 60°
Overcast
It will be overcast in Effingham, with a high of 87°F and a low of 60°F. There's a very small chance of rainfall, only about 9%. Winds will be light at 9mph and gusts of 21.9mph at 10 PM. The humidity will be on the higher side, averaging about 65%, the maximum being 68% at 11 PM and 34% being its lowest at 3 PM. Barometric pressure is its highest of 30.14inHg at 10 AM, a lowest point of 30.01inHg at 6 PM with an avg 30.05inHg.
Effingham, IL Weather – 8-30 – Overcast
93° / 68°

Weather Tomorrow

Overcast
Daytime highs will reach 93°F with lows dropping to 68°F in Effingham, where it will be overcast. There's a very small chance of rainfall, only about 7%. Wind will be moderate, blowing around 15mph on average and gusts of 32.3mph at 11 PM. Humidity levels should be comfortable, sitting around 53% on average, the maximum being 75% at 6 AM and 27% being its lowest at 4 PM. Barometric pressure is its highest of 30.04inHg at 10 AM, a lowest point of 29.92inHg at 6 PM with an avg 29.99inHg.
Effingham, IL Weather – 8-31 – Overcast
98° / 75°
Overcast
In Effingham, skies will be overcast with highs near 98°F and lows around 75°F. There's a very small chance of rainfall, only about 5%. Wind will be moderate, blowing around 17mph on average and gusts of 35.6mph at 5 AM. Humidity levels should be comfortable, sitting around 47% on average, the maximum being 62% at 7 AM and 29% being its lowest at 4 PM. Barometric pressure is its highest of 30inHg at 8 AM, a lowest point of 29.87inHg at 5 PM with an avg 29.94inHg.
Effingham, IL Weather – 9-1 – Sunny
101° / 79°
Sunny
Daytime highs will reach 101°F with lows dropping to 79°F in Effingham, where bright and sunny conditions. There's a very small chance of rainfall, only about 3%. Wind will be moderate, blowing around 16mph on average and gusts of 36.7mph at 3 AM. Humidity levels should be comfortable, sitting around 43% on average, the maximum being 60% at 7 AM and 26% being its lowest at 3 PM. Barometric pressure is its highest of 29.97inHg at 9 AM, a lowest point of 29.87inHg at 5 PM with an avg 29.93inHg.
Effingham, IL Weather – 9-2 – Sunny
101° / 78°
Sunny
Effingham could see a sunny day with daytime highs of 101°F and nighttime lows near 78°F. There's a very small chance of rainfall, only about 1%. Wind will be moderate, blowing around 17mph on average and gusts of 32.3mph at 1 AM. Humidity levels should be comfortable, sitting around 43% on average, the maximum being 65% at 7 AM and 24% being its lowest at 3 PM. Barometric pressure is its highest of 29.97inHg at 11 AM, a lowest point of 29.86inHg at 5 PM with an avg 29.92inHg.
Effingham, IL Weather – 9-3 – Sunny
101° / 80°
Sunny
A sunny day is in the forecast for Effingham, with a high of 101°F and a low of 80°F. There's a very small chance of rainfall, only about 2%. Wind will be moderate, blowing around 11mph on average and gusts of 24.8mph at 12 AM. Humidity levels should be comfortable, sitting around 44% on average, the maximum being 67% at 10 PM and 27% being its lowest at 4 PM. Barometric pressure is its highest of 29.96inHg at 9 AM, a lowest point of 29.89inHg at 5 PM with an avg 29.93inHg.

Currently

Overcast 66°F
30.14 inHg.
Barometer
80%
Humidity
SE 8.6 mph
Wind
Overcast

5 Day Forecast Nearby

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