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Macon, IL Weather Tomorrow

Find out what tomorrow's weather looks like in Macon with a complete 5 day forecast featuring precipitation potential, daytime and nighttime forecasts, temperature highs and lows in Fahrenheit and Celsius, sunrise and sunset times, cloud cover, wind chill, wind speed, and wind direction for the Macon area and around Macon county, Illinois.
Updated: Sat Aug 29th 2026 2:15 AM CDT
Macon, IL Weather – 8-29 – Overcast
85° / 63°
Overcast
Macon is set for cloud-filled skies with temperatures peaking at 85°F and dipping to 63°F. There's a very small chance of rainfall, only about 7%. Wind will be moderate, blowing around 12mph on average and gusts of 21.5mph at 10 PM. Humidity levels should be comfortable, sitting around 58% on average, the maximum being 78% at 7 AM and 37% being its lowest at 2 PM. Barometric pressure is its highest of 30.14inHg at 7 AM, a lowest point of 30inHg at 6 PM with an avg 30.07inHg.
Macon, IL Weather – 8-30 – Overcast
95° / 69°

Weather Tomorrow

Overcast
Macon may see cloud-filled skies, with daytime highs of 95°F and overnight lows near 69°F. There's a very small chance of rainfall, only about 6% with an estimated 0in. Wind will be moderate, blowing around 17mph on average and gusts of 32.3mph at 11 PM. Humidity levels should be comfortable, sitting around 45% on average, the maximum being 69% at 6 AM and 24% being its lowest at 4 PM. Barometric pressure is its highest of 30.02inHg at 10 AM, a lowest point of 29.9inHg at 6 PM with an avg 29.97inHg.
Macon, IL Weather – 8-31 – Overcast
99° / 76°
Overcast
Cloud-filled skies are in the forecast for Macon, with a high of 99°F and a low of 76°F. There's a very small chance of rainfall, only about 6%. Wind will be moderate, blowing around 19mph on average and gusts of 38mph at 4 AM. Humidity levels should be comfortable, sitting around 42% on average, the maximum being 56% at 7 AM and 28% being its lowest at 4 PM. Barometric pressure is its highest of 29.97inHg at 8 AM, a lowest point of 29.86inHg at 6 PM with an avg 29.91inHg.
Macon, IL Weather – 9-1 – Sunny
102° / 80°
Sunny
In Macon, sunshine is likely with a high near 102°F and a low around 80°F. There's a very small chance of rainfall, only about 2%. Wind will be moderate, blowing around 16mph on average and gusts of 38.1mph at 2 AM. Humidity levels should be comfortable, sitting around 40% on average, the maximum being 56% at 7 AM and 25% being its lowest at 4 PM. Barometric pressure is its highest of 29.95inHg at 9 AM, a lowest point of 29.86inHg at 6 PM with an avg 29.91inHg.
Macon, IL Weather – 9-2 – Sunny
100° / 79°
Sunny
Highs will reach 100°F with lows near 79°F in Macon, where sunshine is. There might be light rainfall having a 17% chance with an estimated 0.01in. Wind will be moderate, blowing around 19mph on average and gusts of 35mph at 1 AM. Humidity levels should be comfortable, sitting around 40% on average, the maximum being 62% at 7 AM and 27% being its lowest at 2 PM. Barometric pressure is its highest of 29.95inHg at 7 AM, a lowest point of 29.85inHg at 6 PM with an avg 29.9inHg.
Macon, IL Weather – 9-3 – Sunny
103° / 82°
Sunny
Highs will reach 103°F with lows near 82°F in Macon, where sunshine is. There's a very small chance of rainfall, only about 4% with an estimated 0in. Wind will be moderate, blowing around 11mph on average and gusts of 24.6mph at 12 AM. Humidity levels should be comfortable, sitting around 44% on average, the maximum being 74% at 10 PM and 23% being its lowest at 4 PM. Barometric pressure is its highest of 29.96inHg at 9 AM, a lowest point of 29.87inHg at 4 PM with an avg 29.92inHg.

Currently

Clear 67°F
30.1 inHg.
Barometer
69%
Humidity
SE 11.5 mph
Wind
Clear

5 Day Forecast Nearby

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