DECATUR, IL 62526 Weather Forecast & Current Conditions
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  62526 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)
 CURRENT WEATHER

DECATUR, IL
Current Weather
1:54 AM CDT MAY 14, 2026
Clear
46°F
Feels Like: 46°F
Dewpoint: 37°F
Rel. Hum.: 71%
Visibility: 10 miles
Wind: Calm
Pressure: 30.09 inches
Last 72 hours

Local Area Snow Depth

Illinois Current Weather

Illinois MOS Forecast Weather


Weather Map

(Automated weather data from NWS/FAA)
  62526 WEATHER FORECAST
10-Day model forecast maps
2025 Hurricanes

DECATUR, IL 62526
Weather Forecast

 Snowfall Forecast pages
Snow Depth pages
REST OF TONIGHT
Clear, cooler with lows in the lower 40s. Southeast winds around 5 mph.
THURSDAY
Sunny. Highs in the lower 70s. South winds around 5 mph.
THURSDAY NIGHT
Mostly clear in the evening, then mostly cloudy with showers likely with a slight chance of thunderstorms after midnight. Lows in the lower 50s. South winds 10 to 15 mph. Chance of rain 70 percent.
FRIDAY
Cloudy with showers likely in the morning, then mostly sunny in the afternoon. Highs in the upper 70s. South winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 70 percent.
FRIDAY NIGHT
Mostly cloudy in the evening, then becoming partly cloudy. A chance of showers after midnight. Not as cool with lows in the lower 60s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 40 percent.
SATURDAY
Partly sunny. A chance of showers in the morning, then showers with a chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 80 percent.
SATURDAY NIGHT
A chance of thunderstorms. Showers likely, mainly in the evening. Lows in the lower 60s. Chance of rain 70 percent.
SUNDAY AND SUNDAY NIGHT
Partly cloudy and breezy. Highs in the upper 80s. Lows in the upper 60s.
MONDAY
Mostly sunny. A chance of showers and thunderstorms in the afternoon. Windy with highs in the upper 80s. Chance of rain 40 percent.
MONDAY NIGHT
Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy with a chance of showers after midnight. Breezy with lows in the upper 60s. Chance of rain 50 percent.
TUESDAY AND TUESDAY NIGHT
Showers likely with a chance of thunderstorms. Highs around 80. Lows in the lower 60s. Chance of rain 70 percent.
WEDNESDAY
Partly sunny in the morning, then becoming mostly cloudy. A chance of showers. Highs in the upper 70s. Chance of rain 50 percent.

  62526 WEATHER SATELLITE LOOPS
Visible Weather Satellite
DECATUR, IL 62526
Infrared Weather Satellite
DECATUR, IL 62526
  62526 WEATHER RADAR LOOP
NEXRAD Weather Radar
DECATUR, IL 62526
 MOS COMPUTER WEATHER FORECAST

DECATUR, IL 3 hourly weather forecast
weather forecast created  8:00 PM EDT  5/13/2026
Thursday
14 MAY 2026		 DECATUR, IL 62526 weather forecast Day 1, 0 hours 1 AM 49° 48° Clear 0%

 0% Thunder
( 1% severe)		 ENE   3 66% 38°
Low 44° DECATUR, IL 62526 weather forecast Day 1, 3 hours 4 AM 45° 44° Clear   CALM 76% 38°
High 72° DECATUR, IL 62526 weather forecast Day 1, 6 hours 7 AM 47° 46° Clear 0%

 0% Thunder
( 0% severe)		   CALM 71% 38°

Clear



 DECATUR, IL 62526 weather forecast Day 1, 9 hours 10 AM 61° 62° Clear   CALM 44% 39°
DECATUR, IL 62526 weather forecast Day 1, 12 hours 1 PM 67° 67° Clear 0%

 0% Thunder
( 1% severe)		   CALM 34% 38°
DECATUR, IL 62526 weather forecast Day 1, 15 hours 4 PM 70° 70° Clear   CALM 29% 36°
DECATUR, IL 62526 weather forecast Day 1, 18 hours 7 PM 67° 67° Partly Cloudy 20%
RAIN
<.01 in		 0% Thunder
( 10% severe)		 S   7 34% 38°
DECATUR, IL 62526 weather forecast Day 1, 21 hours 10 PM 57° 55° Clear SSE   9 51% 39°
Friday
15 MAY 2026		 DECATUR, IL 62526 weather forecast Day 2, 0 hours 1 AM 55° 52° Mostly Cloudy 61%
RAIN
***		 0% Thunder
( 17% severe)		 SSE   10 57% 40°
Low 52° DECATUR, IL 62526 weather forecast Day 2, 3 hours 4 AM 55° 52° Mostly Cloudy SSE   13 57% 40°
High 77° DECATUR, IL 62526 weather forecast Day 2, 6 hours 7 AM 55° 51° Mostly Cloudy 73%
RAIN
>2 in		 0% Thunder
( 16% severe)		 SSE   15 64% 43°

Mostly Cloudy

Rain Likely


Breezy		 DECATUR, IL 62526 weather forecast Day 2, 9 hours 10 AM 61° 58° Mostly Cloudy S   17 60% 47°
DECATUR, IL 62526 weather forecast Day 2, 12 hours 1 PM 69° 69° Mostly Cloudy 5%

 0% Thunder
( 14% severe)		 S   20 55% 52°
DECATUR, IL 62526 weather forecast Day 2, 15 hours 4 PM 75° 75° Partly Cloudy S   18 50% 55°
DECATUR, IL 62526 weather forecast Day 2, 18 hours 7 PM 73° 73° Mostly Cloudy 9%

 0% Thunder
( 24% severe)		 S   14 55% 56°
DECATUR, IL 62526 weather forecast Day 2, 21 hours 10 PM 67° 67° Partly Cloudy S   12 70% 57°

DECATUR, IL extended weather forecast
Saturday
16 MAY 2026		 Sunday
17 MAY 2026		 Monday
18 MAY 2026		 Tuesday
19 MAY 2026		 Wednesday
20 MAY 2026
Low 64° Low 65° Low 64° Low 63° Low 52°
High 83° High 84° High 82° High 76° High 72°
DECATUR, IL 62526 weather forecast Day 3 DECATUR, IL 62526 weather forecast Day 4 DECATUR, IL 62526 weather forecast Day 5 DECATUR, IL 62526 weather forecast Day 6 DECATUR, IL 62526 weather forecast Day 7
Overcast
76% Rain		 Partly Cloudy
40% Rain		 Mostly Cloudy
62% Rain		 Overcast
61% Rain		 Mostly Cloudy
29% Rain
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