DECATUR, IL 62522 Weather Forecast & Current Conditions

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DECATUR, IL
Current Weather

12:54 AM CDT AUG 8, 2025
Clear
75°F
Feels Like: 75°F
Dewpoint: 72°F
Rel. Hum.: 90%
Visibility: 10 miles
Wind: SSE at 6 mph
Pressure: 30.10 inches
Last 72 hours

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DECATUR, IL 62522
Weather Forecast

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REST OF TONIGHT
Mostly cloudy with a 20 percent chance of showers. Near steady temperature in the lower 70s. South winds around 5 mph.
FRIDAY
Mostly sunny. Humid with highs around 90. South winds 10 to 15 mph.
FRIDAY NIGHT
Mostly clear. Humid with lows in the lower 70s. South winds around 10 mph.
SATURDAY
Sunny with highs around 90. South winds 10 to 15 mph.
SATURDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 70s. South winds 5 to 10 mph.
SUNDAY AND SUNDAY NIGHT
Partly cloudy. Highs around 90. Lows in the lower 70s.
MONDAY
Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 30 percent.
MONDAY NIGHT
Partly cloudy with a chance of showers. Lows in the lower 70s. Chance of rain 30 percent.
TUESDAY
Mostly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 40 percent.
TUESDAY NIGHT
Partly cloudy. Lows in the upper 60s.
WEDNESDAY
Mostly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 40 percent.
WEDNESDAY NIGHT AND THURSDAY
Partly cloudy. Lows in the upper 60s. Highs in the upper 80s.

Visible Weather Satellite
DECATUR, IL 62522
Infrared Weather Satellite
DECATUR, IL 62522
NEXRAD Weather Radar
DECATUR, IL 62522

DECATUR, IL 3 hourly weather forecast

weather forecast created  8:00 PM EDT  8/ 7/2025
Friday
8 AUG 2025
DECATUR, IL 62522 weather forecast Day 1, 0 hours 1 AM 75° 75° Mostly Cloudy 9%

0% Thunder
( 7% severe)
SSE   7 87% 71°
Low 72° DECATUR, IL 62522 weather forecast Day 1, 3 hours 4 AM 74° 74° Partly Cloudy SSE   7 90% 71°
High 91° DECATUR, IL 62522 weather forecast Day 1, 6 hours 7 AM 73° 73° Partly Cloudy 5%

0% Thunder
( 7% severe)
SSE   8 90% 70°

Partly Cloudy



DECATUR, IL 62522 weather forecast Day 1, 9 hours 10 AM 83° 89° Partly Cloudy S   12 72% 73°
DECATUR, IL 62522 weather forecast Day 1, 12 hours 1 PM 88° 95° Clear 2%

0% Thunder
( 7% severe)
S   13 59% 72°
DECATUR, IL 62522 weather forecast Day 1, 15 hours 4 PM 89° 97° Partly Cloudy S   13 59% 73°
DECATUR, IL 62522 weather forecast Day 1, 18 hours 7 PM 86° 93° Partly Cloudy 1%

0% Thunder
( 8% severe)
SSE   10 65% 73°
DECATUR, IL 62522 weather forecast Day 1, 21 hours 10 PM 80° 84° Clear SSE   10 77% 72°
Saturday
9 AUG 2025
DECATUR, IL 62522 weather forecast Day 2, 0 hours 1 AM 78° 80° Clear 3%

0% Thunder
( 6% severe)
SSE   9 76% 70°
Low 74° DECATUR, IL 62522 weather forecast Day 2, 3 hours 4 AM 76° 77° Clear S   10 82% 70°
High 92° DECATUR, IL 62522 weather forecast Day 2, 6 hours 7 AM 75° 75° Clear 1%

0% Thunder
( 7% severe)
S   10 84% 70°

Clear



DECATUR, IL 62522 weather forecast Day 2, 9 hours 10 AM 84° 90° Clear S   13 70% 73°
DECATUR, IL 62522 weather forecast Day 2, 12 hours 1 PM 89° 97° Clear 1%

0% Thunder
( 11% severe)
S   14 59% 73°
DECATUR, IL 62522 weather forecast Day 2, 15 hours 4 PM 90° 99° Partly Cloudy S   14 58% 73°
DECATUR, IL 62522 weather forecast Day 2, 18 hours 7 PM 87° 94° Partly Cloudy 4%

0% Thunder
( 13% severe)
S   10 63% 73°
DECATUR, IL 62522 weather forecast Day 2, 21 hours 10 PM 81° 85° Partly Cloudy SSE   10 74% 72°

DECATUR, IL extended weather forecast

Sunday
10 AUG 2025
Monday
11 AUG 2025
Tuesday
12 AUG 2025
Wednesday
13 AUG 2025
Thursday
14 AUG 2025
Low 72° Low 71° Low 71° Low 71° Low 68°
High 91° High 88° High 88° High 87° High 87°
DECATUR, IL 62522 weather forecast Day 3 DECATUR, IL 62522 weather forecast Day 4 DECATUR, IL 62522 weather forecast Day 5 DECATUR, IL 62522 weather forecast Day 6 DECATUR, IL 62522 weather forecast Day 7
Partly Cloudy
19% Rain
Partly Cloudy
39% Rain
Mostly Cloudy
66% Rain
Overcast
67% Rain
Partly Cloudy
43% Rain
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