DECATUR, IL 62521 Weather Forecast & Current Conditions

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62521 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
DECATUR, IL Current Weather
3:54 AM CDT APR 4, 2026
Overcast 72°F
Feels Like:	72°F
Dewpoint:	61°F
Rel. Hum.:	68%
Visibility:	10 miles
Wind:	S at 21 mph, gusts to 35
Pressure:	29.86 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

REST OF TONIGHT
Showers with a chance of thunderstorms. Near steady temperature in the upper 60s. South winds around 20 mph with gusts up to 30 mph. Chance of rain near 100 percent.

SATURDAY
Showers with a chance of thunderstorms in the morning, then a chance of showers in the afternoon. Cooler. Less humid with highs in the mid 60s. West winds 15 to 20 mph with gusts up to 30 mph. Chance of rain near 100 percent.

SATURDAY NIGHT
Mostly cloudy in the evening, then clearing. Much cooler with lows in the mid 30s. West winds 15 to 20 mph with gusts up to 30 mph.

SUNDAY
Partly sunny in the morning, then clearing. Cooler with highs in the lower 50s. Northwest winds around 15 mph with gusts up to 25 mph.

SUNDAY NIGHT
Mostly clear. Lows in the upper 30s. West winds 5 to 10 mph.

MONDAY
Sunny. Highs in the mid 50s.

MONDAY NIGHT AND TUESDAY
Partly cloudy. Lows in the upper 20s. Highs in the upper 40s.

TUESDAY NIGHT
Mostly cloudy. Lows in the upper 30s.

WEDNESDAY THROUGH THURSDAY
Partly cloudy. Highs around 70. Lows in the lower 50s.

THURSDAY NIGHT
Mostly cloudy with a 30 percent chance of showers. Lows in the lower 50s.

FRIDAY
Partly sunny. Highs in the mid 70s.

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 4/ 3/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Saturday
4 APR 2026

12 AM

68°

68°

Mostly Cloudy

97%
RAIN
***

0% Thunder
( 41% severe)

S 16

81%

62°

Low 57°

3 AM

66°

66°

Mostly Cloudy

SSW 17

87%

62°

High 64°

6 AM

63°

61°

Mostly Cloudy

81%
RAIN
***

0% Thunder
( 11% severe)

SSW 15

90%

60°

Mostly Cloudy

Rain Likely

Breezy

9 AM

58°

55°

Mostly Cloudy

W 16

87%

54°

12 PM

55°

51°

Mostly Cloudy

18%
RAIN
.01–.1 in

0% Thunder
( 1% severe)

W 17

74%

47°

3 PM

55°

50°

Mostly Cloudy

W 18

64%

43°

6 PM

50°

44°

Mostly Cloudy

2%

0% Thunder
( 0% severe)

W 18

63%

38°

9 PM

45°

38°

Partly Cloudy

W 15

68%

35°

Sunday
5 APR 2026

12 AM

42°

35°

Partly Cloudy

0%

0% Thunder
( 0% severe)

W 13

70%

33°

Low 37°

3 AM

39°

31°

Partly Cloudy

WNW 14

76%

32°

High 54°

6 AM

37°

29°

Partly Cloudy

0%

0% Thunder
( 0% severe)

WNW 13

79%

31°

Partly Cloudy

9 AM

42°

34°

Mostly Cloudy

NW 15

67%

32°

12 PM

48°

42°

Partly Cloudy

0%

0% Thunder
( 0% severe)

WNW 16

56%

33°

3 PM

52°

47°

Clear

WNW 15

48%

33°

6 PM

50°

46°

Clear

1%

0% Thunder
( 1% severe)

WNW 10

52%

33°

9 PM

44°

39°

Clear

W 8

68%

34°


DECATUR, IL extended weather forecast
Monday 6 APR 2026	Tuesday 7 APR 2026	Wednesday 8 APR 2026	Thursday 9 APR 2026	Friday 10 APR 2026
Low 38°	Low 29°	Low 33°	Low 50°	Low 49°
High 56°	High 47°	High 64°	High 63°	High 65°

Mostly Cloudy 6% Rain	Mostly Cloudy 14% Rain/Snow	Partly Cloudy 18% Rain	Overcast 42% Rain	Overcast 46% Rain

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