DECATUR, IL 62525 Weather Forecast & Current Conditions

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DECATUR, IL
Current Weather

10:54 PM CDT JUN 20, 2025
Clear
79°F
Feels Like: 81°F
Dewpoint: 68°F
Rel. Hum.: 69%
Visibility: 10 miles
Wind: S at 15 mph
Pressure: 29.96 inches
Last 72 hours

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DECATUR, IL 62525
Weather Forecast

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REST OF TONIGHT
Mostly clear. Not as cool with lows in the mid 70s. South winds 10 to 15 mph with gusts up to 25 mph.
SATURDAY
Sunny with highs in the mid 90s. Southwest winds 15 to 20 mph with gusts up to 35 mph. Heat index values up to 107.
SATURDAY NIGHT
Clear with lows in the mid 70s. South winds 15 to 20 mph.
SUNDAY
Sunny with highs in the mid 90s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Heat index values up to 103.
SUNDAY NIGHT
Clear with lows in the mid 70s. South winds 10 to 15 mph with gusts up to 25 mph.
MONDAY AND MONDAY NIGHT
Mostly clear. Highs in the lower 90s. Lows in the mid 70s.
TUESDAY AND TUESDAY NIGHT
Partly cloudy. Highs in the lower 90s. Lows in the mid 70s.
WEDNESDAY
Sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 30 percent. Heat index values up to 100.
WEDNESDAY NIGHT
Partly cloudy. Lows in the lower 70s.
THURSDAY AND THURSDAY NIGHT
Partly cloudy. A chance of showers and thunderstorms. Highs in the lower 90s. Lows in the lower 70s. Chance of rain 30 percent.
FRIDAY
Mostly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 40 percent.

Visible Weather Satellite
DECATUR, IL 62525
Infrared Weather Satellite
DECATUR, IL 62525
NEXRAD Weather Radar
DECATUR, IL 62525

DECATUR, IL 3 hourly weather forecast

weather forecast created  8:00 AM EDT  6/20/2025
Friday
20 JUN 2025
DECATUR, IL 62525 weather forecast Day 1, 12 hours 1 PM 85° 87° Mostly Cloudy 4%

0% Thunder
( 12% severe)
SSW   13 53% 66°
High 89° DECATUR, IL 62525 weather forecast Day 1, 15 hours 4 PM 88° 91° Partly Cloudy S   15 50% 67°
Decreasing Clouds



DECATUR, IL 62525 weather forecast Day 1, 18 hours 7 PM 85° 89° Clear 2%

0% Thunder
( 10% severe)
S   14 59% 69°
DECATUR, IL 62525 weather forecast Day 1, 21 hours 10 PM 80° 83° Clear S   14 69% 69°
Saturday
21 JUN 2025
DECATUR, IL 62525 weather forecast Day 2, 0 hours 1 AM 78° 80° Clear 1%

0% Thunder
( 10% severe)
S   14 74% 69°
Low 76° DECATUR, IL 62525 weather forecast Day 2, 3 hours 4 AM 77° 79° Clear SSW   14 79% 70°
High 96° DECATUR, IL 62525 weather forecast Day 2, 6 hours 7 AM 78° 80° Partly Cloudy 0%

0% Thunder
( 8% severe)
SSW   14 82% 72°

Clear




Breezy
DECATUR, IL 62525 weather forecast Day 2, 9 hours 10 AM 87° 95° Clear SSW   16 65% 74°
DECATUR, IL 62525 weather forecast Day 2, 12 hours 1 PM 92° 102° Clear 0%

0% Thunder
( 9% severe)
SSW   17 56% 74°
DECATUR, IL 62525 weather forecast Day 2, 15 hours 4 PM 95° 106° Clear SSW   17 51% 74°
DECATUR, IL 62525 weather forecast Day 2, 18 hours 7 PM 91° 101° Clear 0%

0% Thunder
( 8% severe)
SSW   15 58% 74°
DECATUR, IL 62525 weather forecast Day 2, 21 hours 10 PM 85° 92° Clear S   14 67% 73°
Sunday
22 JUN 2025
DECATUR, IL 62525 weather forecast Day 3, 0 hours 1 AM 82° 87° Clear 0%

0% Thunder
( 4% severe)
SSW   13 72% 72°
Low 77° DECATUR, IL 62525 weather forecast Day 3, 3 hours 4 AM 79° 82° Clear SSW   12 79% 72°
High 96° DECATUR, IL 62525 weather forecast Day 3, 6 hours 7 AM 79° 82° Clear 0%

0% Thunder
( 5% severe)
SSW   12 79% 72°

Clear



DECATUR, IL 62525 weather forecast Day 3, 9 hours 10 AM 87° 94° Clear SW   13 63% 73°
DECATUR, IL 62525 weather forecast Day 3, 15 hours 1 PM 92° 100° Clear 0%

0% Thunder
( 10% severe)
SSW   14 52% 72°
DECATUR, IL 62525 weather forecast Day 3, 18 hours 4 PM 94° 101° Clear SSW   15 47% 71°
DECATUR, IL 62525 weather forecast Day 3, 21 hours 7 PM 91° 99° Clear     SSW   13 54% 72°

DECATUR, IL extended weather forecast

Monday
23 JUN 2025
Tuesday
24 JUN 2025
Wednesday
25 JUN 2025
Thursday
26 JUN 2025
Friday
27 JUN 2025
Low 73° Low 72° Low 71° Low 71° Low 70°
High 92° High 93° High 93° High 90° High 89°
DECATUR, IL 62525 weather forecast Day 4 DECATUR, IL 62525 weather forecast Day 5 DECATUR, IL 62525 weather forecast Day 6 DECATUR, IL 62525 weather forecast Day 7 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Partly Cloudy
33% Rain
Partly Cloudy
57% Rain
Partly Cloudy
46% Rain
Partly Cloudy
44% Rain
Partly Cloudy
39% Rain
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