DECATUR, IL 62521 Weather Forecast & Current Conditions

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DECATUR, IL
Current Weather

9:54 PM CST NOV 13, 2025
Clear
46°F
Feels Like: 42°F
Dewpoint: 28°F
Rel. Hum.: 49%
Visibility: 10 miles
Wind: SSE at 8 mph
Pressure: 30.11 inches
Last 72 hours

Local Area Snow Depth

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DECATUR, IL 62521
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
REST OF TONIGHT
Mostly clear. Not as cool with lows in the lower 40s. South winds 5 to 10 mph.
FRIDAY
Mostly sunny. Highs in the lower 70s. Southwest winds 5 to 10 mph.
FRIDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Not as cool with lows in the upper 50s. Southwest winds 10 to 15 mph.
SATURDAY
Partly sunny. Highs in the lower 70s. Southwest winds 15 to 20 mph with gusts up to 30 mph.
SATURDAY NIGHT
Mostly clear. Much cooler with lows in the upper 30s. Northwest winds 10 to 15 mph.
SUNDAY AND SUNDAY NIGHT
Mostly clear. Highs in the mid 50s. Lows in the lower 30s.
MONDAY
Mostly sunny. Highs in the mid 50s.
MONDAY NIGHT
Mostly cloudy. Rain likely, mainly in the evening. Lows in the upper 30s. Chance of rain 60 percent.
TUESDAY
Partly sunny. A chance of rain in the morning. Highs in the mid 50s. Chance of rain 30 percent.
TUESDAY NIGHT
Mostly cloudy. Lows in the upper 30s.
WEDNESDAY
Mostly cloudy with a 30 percent chance of rain. Highs in the mid 50s.
WEDNESDAY NIGHT
Mostly cloudy with a 50 percent chance of rain. Lows in the lower 40s.
THURSDAY
Rain likely. Highs in the mid 50s. Chance of rain 60 percent.

Visible Weather Satellite
DECATUR, IL 62521
Infrared Weather Satellite
DECATUR, IL 62521
NEXRAD Weather Radar
DECATUR, IL 62521

DECATUR, IL 3 hourly weather forecast

weather forecast created  7:00 AM EST 11/13/2025
Thursday
13 NOV 2025
DECATUR, IL 62521 weather forecast Day 1, 12 hours 12 PM 58° 58° Partly Cloudy 1%

0% Thunder
( 0% severe)
SSW   5 33% 29°
High 62° DECATUR, IL 62521 weather forecast Day 1, 15 hours 3 PM 61° 60° Partly Cloudy S   8 28% 28°
Partly Cloudy



DECATUR, IL 62521 weather forecast Day 1, 18 hours 6 PM 51° 48° Partly Cloudy 1%

0% Thunder
( 0% severe)
SSE   8 44% 30°
DECATUR, IL 62521 weather forecast Day 1, 21 hours 9 PM 47° 43° Clear SSE   9 60% 34°
Friday
14 NOV 2025
DECATUR, IL 62521 weather forecast Day 2, 0 hours 12 AM 45° 41° Clear 3%

0% Thunder
( 2% severe)
S   8 73% 37°
Low 43° DECATUR, IL 62521 weather forecast Day 2, 3 hours 3 AM 45° 41° Partly Cloudy S   8 82% 40°
High 70° DECATUR, IL 62521 weather forecast Day 2, 6 hours 6 AM 46° 42° Partly Cloudy 3%

0% Thunder
( 2% severe)
S   8 89% 43°

Partly Cloudy



DECATUR, IL 62521 weather forecast Day 2, 9 hours 9 AM 56° 54° Partly Cloudy SSW   9 80% 50°
DECATUR, IL 62521 weather forecast Day 2, 12 hours 12 PM 67° 67° Partly Cloudy 2%

0% Thunder
( 1% severe)
SW   10 65% 55°
DECATUR, IL 62521 weather forecast Day 2, 15 hours 3 PM 70° 70° Partly Cloudy SSW   10 61% 56°
DECATUR, IL 62521 weather forecast Day 2, 18 hours 6 PM 63° 63° Partly Cloudy 1%

0% Thunder
( 0% severe)
S   8 78% 56°
DECATUR, IL 62521 weather forecast Day 2, 21 hours 9 PM 60° 59° Partly Cloudy SSW   9 90% 57°
Saturday
15 NOV 2025
DECATUR, IL 62521 weather forecast Day 3, 0 hours 12 AM 60° 58° Partly Cloudy 0%

0% Thunder
( 0% severe)
SSW   10 90% 57°
Low 56° DECATUR, IL 62521 weather forecast Day 3, 3 hours 3 AM 59° 57° Mostly Cloudy SSW   12 90% 56°
High 73° DECATUR, IL 62521 weather forecast Day 3, 6 hours 6 AM 58° 55° Mostly Cloudy 0%

0% Thunder
( 1% severe)
SSW   13 93% 56°

Mostly Cloudy



DECATUR, IL 62521 weather forecast Day 3, 9 hours 9 AM 64° 62° Mostly Cloudy SW   16 81% 58°
DECATUR, IL 62521 weather forecast Day 3, 15 hours 12 PM 70° 70° Mostly Cloudy 2%

0% Thunder
( 1% severe)
WSW   17 63% 57°
DECATUR, IL 62521 weather forecast Day 3, 18 hours 3 PM 71° 71° Mostly Cloudy W   17 53% 53°
DECATUR, IL 62521 weather forecast Day 3, 21 hours 6 PM 62° 60° Partly Cloudy     WNW   13 65% 50°

DECATUR, IL extended weather forecast

Sunday
16 NOV 2025
Monday
17 NOV 2025
Tuesday
18 NOV 2025
Wednesday
19 NOV 2025
Thursday
20 NOV 2025
Low 39° Low 25° Low 31° Low 33° Low 41°
High 51° High 52° High 49° High 50° High 57°
DECATUR, IL 62521 weather forecast Day 4 DECATUR, IL 62521 weather forecast Day 5 DECATUR, IL 62521 weather forecast Day 6 DECATUR, IL 62521 weather forecast Day 7 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Clear
12% Rain
Mostly Cloudy
12% Rain/Snow
Overcast
35% Rain
Partly Cloudy
14% Rain
Overcast
55% Rain
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