RANTOUL, IL 61866 Weather Forecast & Current Conditions

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RANTOUL, IL
Current Weather

5:35 AM CDT SEP 2, 2026
Clear
72°F
Feels Like: 72°F
Dewpoint: 70°F
Rel. Hum.: 93%
Visibility: 10 miles
Wind: S at 3 mph
Pressure: 30.03 inches
Last 72 hours

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RANTOUL, IL 61866
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Sunny, hot with highs in the mid 90s. Southwest winds 5 to 10 mph. Heat index values up to 106.
TONIGHT
Mostly clear. Lows in the mid 70s. Southwest winds 5 to 10 mph.
THURSDAY
Sunny, hot with highs in the mid 90s. Southwest winds 5 to 10 mph. Heat index values up to 106.
THURSDAY NIGHT
Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 70s. South winds around 5 mph.
FRIDAY
Sunny with highs in the lower 90s. West winds around 5 mph. Heat index values up to 103.
FRIDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 70s.
SATURDAY
Mostly sunny. A chance of showers and thunderstorms in the morning. Highs around 90. Chance of rain 30 percent. Heat index values up to 100.
SATURDAY NIGHT THROUGH TUESDAY
Partly cloudy. Lows in the upper 60s. Highs in the mid 80s.

Visible Weather Satellite
RANTOUL, IL 61866
Infrared Weather Satellite
RANTOUL, IL 61866
NEXRAD Weather Radar
RANTOUL, IL 61866

RANTOUL, IL 3 hourly weather forecast

weather forecast created  7:00 PM CDT  9/ 1/2026
Wednesday
2 SEP 2026
RANTOUL, IL 61866 weather forecast Day 1, 0 hours 1 AM 76° 77° Clear 2%

0% Thunder
( 5% severe)
SSW   5 79% 69°
Low 74° RANTOUL, IL 61866 weather forecast Day 1, 3 hours 4 AM 75° 75° Clear SW   6 76% 67°
High 93° RANTOUL, IL 61866 weather forecast Day 1, 6 hours 7 AM 75° 75° Clear 2%

0% Thunder
( 8% severe)
SSW   6 79% 68°

Clear



RANTOUL, IL 61866 weather forecast Day 1, 9 hours 10 AM 85° 92° Clear SW   8 67% 73°
RANTOUL, IL 61866 weather forecast Day 1, 12 hours 1 PM 90° 100° Partly Cloudy 2%

0% Thunder
( 19% severe)
SW   10 60% 74°
RANTOUL, IL 61866 weather forecast Day 1, 15 hours 4 PM 91° 100° Clear WSW   10 56% 73°
RANTOUL, IL 61866 weather forecast Day 1, 18 hours 7 PM 85° 91° Partly Cloudy 2%

0% Thunder
( 12% severe)
SW   5 65% 72°
RANTOUL, IL 61866 weather forecast Day 1, 21 hours 10 PM 79° 82° Partly Cloudy SW   5 74% 70°
Thursday
3 SEP 2026
RANTOUL, IL 61866 weather forecast Day 2, 0 hours 1 AM 78° 80° Partly Cloudy 2%

0% Thunder
( 10% severe)
SW   6 71% 68°
Low 75° RANTOUL, IL 61866 weather forecast Day 2, 3 hours 4 AM 77° 79° Clear SW   7 74% 68°
High 93° RANTOUL, IL 61866 weather forecast Day 2, 6 hours 7 AM 75° 75° Clear 1%

0% Thunder
( 11% severe)
SW   6 79% 68°

Clear



RANTOUL, IL 61866 weather forecast Day 2, 9 hours 10 AM 86° 93° Clear WSW   7 65% 73°
RANTOUL, IL 61866 weather forecast Day 2, 12 hours 1 PM 90° 99° Clear 9%

0% Thunder
( 28% severe)
WSW   9 58% 73°
RANTOUL, IL 61866 weather forecast Day 2, 15 hours 4 PM 90° 99° Partly Cloudy W   8 58% 73°
RANTOUL, IL 61866 weather forecast Day 2, 18 hours 7 PM 84° 90° Partly Cloudy 2%

0% Thunder
( 16% severe)
WSW   1 67% 72°
RANTOUL, IL 61866 weather forecast Day 2, 21 hours 10 PM 77° 79° Partly Cloudy SSW   1 79% 70°

RANTOUL, IL extended weather forecast

Friday
4 SEP 2026
Saturday
5 SEP 2026
Sunday
6 SEP 2026
Monday
7 SEP 2026
Tuesday
8 SEP 2026
Low 68° Low 71° Low 67° Low 67° Low 68°
High 95° High 88° High 88° High 87° High 91°
RANTOUL, IL 61866 weather forecast Day 3 RANTOUL, IL 61866 weather forecast Day 4 RANTOUL, IL 61866 weather forecast Day 5 RANTOUL, IL 61866 weather forecast Day 6 RANTOUL, IL 61866 weather forecast Day 7
Partly Cloudy
20% Rain
Partly Cloudy
58% Rain
Partly Cloudy
27% Rain
Partly Cloudy
24% Rain
Partly Cloudy
27% Rain
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