DECATUR, IL 62521 Weather Forecast & Current Conditions

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62521 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
DECATUR, IL Current Weather
5:54 AM CDT MAR 31, 2026
Clear 64°F
Feels Like:	63°F
Dewpoint:	55°F
Rel. Hum.:	73%
Visibility:	10 miles
Wind:	SSW at 15 mph
Pressure:	29.89 inches
Last 72 hours
Local Area Snow Depth
Illinois Current Weather
Illinois MOS Forecast Weather

Weather Map

(Automated weather data from NWS/FAA)

62521 WEATHER FORECAST
10-Day model forecast maps 2025 Hurricanes	DECATUR, IL 62521 Weather Forecast	Snowfall Forecast pages Snow Depth pages

TODAY
Partly sunny with a chance of showers and thunderstorms. Breezy with highs around 80. Southwest winds 15 to 25 mph with gusts up to 35 mph. Chance of rain 40 percent.

TONIGHT
Showers with thunderstorms likely. Cooler with lows in the upper 40s. Southwest winds 10 to 15 mph, becoming northeast after midnight. Chance of rain 90 percent.

WEDNESDAY
A chance of thunderstorms. Showers in the morning, then rain in the afternoon. Much cooler with highs in the lower 60s. East winds around 15 mph with gusts up to 25 mph. Chance of rain near 100 percent.

WEDNESDAY NIGHT
Rain likely. Near steady temperature in the upper 50s. Southeast winds 15 to 20 mph. Chance of rain 70 percent.

THURSDAY
Rain likely in the morning, then rain with a chance of thunderstorms in the afternoon. Windy and not as cool with highs in the mid 70s. South winds 20 to 30 mph with gusts up to 40 mph. Chance of rain 90 percent.

THURSDAY NIGHT
Rain with a chance of thunderstorms in the evening, then a chance of rain after midnight. Breezy with lows in the mid 50s. Chance of rain 90 percent.

FRIDAY
Partly sunny. A chance of rain in the afternoon. Highs in the mid 70s. Chance of rain 50 percent.

FRIDAY NIGHT AND SATURDAY
Rain with a chance of thunderstorms. Breezy. Lows in the upper 50s. Highs in the upper 60s. Chance of rain 80 percent.

SATURDAY NIGHT
Mostly cloudy with a 50 percent chance of rain. Much cooler with lows in the upper 30s.

SUNDAY
Partly sunny. Much cooler with highs in the lower 50s.

SUNDAY NIGHT AND MONDAY
Mostly clear. Lows in the lower 30s. Highs in the upper 50s.

62521 WEATHER SATELLITE LOOPS

Visible Weather Satellite
DECATUR, IL 62521

Infrared Weather Satellite
DECATUR, IL 62521

62521 WEATHER RADAR LOOP

NEXRAD Weather Radar
DECATUR, IL 62521

MOS COMPUTER WEATHER FORECAST

DECATUR, IL 3 hourly weather forecast

weather forecast created 7:00 PM EST 3/30/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Tuesday
31 MAR 2026

12 AM

67°

67°

Mostly Cloudy

13%
RAIN
<.01 in

0% Thunder
( 20% severe)

SSW 18

65%

55°

Low 62°

3 AM

64°

62°

Partly Cloudy

SSW 17

73%

55°

High 80°

6 AM

63°

61°

Mostly Cloudy

32%
RAIN
<.01 in

0% Thunder
( 21% severe)

SSW 17

78%

56°

Mostly Cloudy

Chance of Rain

Breezy

9 AM

69°

69°

Mostly Cloudy

SSW 21

68%

58°

12 PM

76°

78°

Mostly Cloudy

45%
RAIN
.1–.25 in

0% Thunder
( 29% severe)

SW 22

56%

59°

3 PM

78°

79°

Mostly Cloudy

SW 20

50%

58°

6 PM

74°

74°

Mostly Cloudy

78%
RAIN
***

0% Thunder
( 57% severe)

SW 14

55%

57°

9 PM

67°

67°

Mostly Cloudy

SW 13

70%

57°

Wednesday
1 APR 2026

12 AM

62°

60°

Mostly Cloudy

84%
RAIN
***

0% Thunder
( 41% severe)

NE 13

78%

55°

Low 49°

3 AM

56°

53°

Mostly Cloudy

NE 14

83%

51°

High 63°

6 AM

51°

46°

Mostly Cloudy

80%
RAIN
***

0% Thunder
( 24% severe)

ENE 14

89%

48°

Mostly Cloudy

Rain Likely

9 AM

53°

49°

Mostly Cloudy

ENE 14

83%

48°

12 PM

57°

54°

Mostly Cloudy

79%
RAIN
***

0% Thunder
( 28% severe)

E 14

80%

51°

3 PM

61°

59°

Mostly Cloudy

ESE 14

75%

53°

6 PM

60°

58°

Mostly Cloudy

62%
RAIN
***

0% Thunder
( 12% severe)

E 14

78%

53°

9 PM

58°

55°

Mostly Cloudy

ESE 15

83%

53°


DECATUR, IL extended weather forecast
Thursday 2 APR 2026	Friday 3 APR 2026	Saturday 4 APR 2026	Sunday 5 APR 2026	Monday 6 APR 2026
Low 60°	Low 57°	Low 57°	Low 37°	Low 33°
High 76°	High 78°	High 63°	High 51°	High 56°

Overcast 76% Rain	Mostly Cloudy 39% Rain	Overcast 80% Rain	Mostly Cloudy 27% Rain	Clear 12% Rain

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