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 23, 2026
Clear 59°F
Feels Like:	58°F
Dewpoint:	55°F
Rel. Hum.:	87%
Visibility:	10 miles
Wind:	S at 6 mph
Pressure:	29.95 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
Sunny, breezy with highs in the lower 80s. South winds 15 to 25 mph.

TONIGHT
Partly cloudy in the evening, then mostly cloudy with showers likely with a chance of thunderstorms after midnight. Lows in the lower 60s. South winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 70 percent.

FRIDAY
A chance of thunderstorms. Showers. Highs in the lower 70s. South winds around 15 mph, becoming west in the afternoon. Chance of rain 90 percent.

FRIDAY NIGHT
Partly cloudy in the evening, then clearing. Cooler with lows in the upper 40s. Northwest winds 10 to 15 mph.

SATURDAY
Sunny. Highs in the lower 70s. Northeast winds around 10 mph.

SATURDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 40s.

SUNDAY
Partly sunny. Highs in the mid 70s.

SUNDAY NIGHT
Mostly cloudy. A chance of showers in the evening, then showers likely with a chance of thunderstorms after midnight. Lows in the upper 50s. Chance of rain 60 percent.

MONDAY
Showers with thunderstorms likely. Breezy with highs in the lower 70s. Chance of rain 80 percent.

MONDAY NIGHT
Mostly cloudy with a chance of showers in the evening, then partly cloudy after midnight. Lows around 50. Chance of rain 50 percent.

TUESDAY AND TUESDAY NIGHT
Mostly clear. Highs in the upper 60s. Lows in the mid 40s.

WEDNESDAY
Mostly sunny. Highs in the upper 60s.

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 8:00 PM EDT 4/22/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Thursday
23 APR 2026

1 AM

62°

62°

Clear

0%

0% Thunder
( 2% severe)

S 7

81%

56°

Low 57°

4 AM

59°

58°

Partly Cloudy

S 8

87%

55°

High 80°

7 AM

58°

56°

Clear

0%

0% Thunder
( 1% severe)

S 9

87%

54°

Partly Cloudy

10 AM

71°

71°

Partly Cloudy

S 14

61%

57°

1 PM

78°

79°

Partly Cloudy

1%

0% Thunder
( 11% severe)

SSW 18

47%

56°

4 PM

79°

80°

Partly Cloudy

S 20

44%

55°

7 PM

76°

78°

Partly Cloudy

13%
RAIN
<.01 in

0% Thunder
( 17% severe)

S 17

50%

56°

10 PM

70°

70°

Partly Cloudy

S 16

63%

57°

Friday
24 APR 2026

1 AM

67°

67°

Partly Cloudy

58%
RAIN
***

0% Thunder
( 35% severe)

S 16

70%

57°

Low 62°

4 AM

65°

65°

Mostly Cloudy

S 16

75%

57°

High 73°

7 AM

63°

61°

Mostly Cloudy

69%
RAIN
***

0% Thunder
( 18% severe)

SSW 15

81%

57°

Mostly Cloudy

Rain Likely

10 AM

65°

65°

Mostly Cloudy

SSW 15

78%

58°

1 PM

69°

69°

Mostly Cloudy

60%
RAIN
***

0% Thunder
( 30% severe)

SW 15

70%

59°

4 PM

71°

71°

Mostly Cloudy

W 15

61%

57°

7 PM

69°

69°

Mostly Cloudy

24%
RAIN
.25–.5 in

0% Thunder
( 7% severe)

WNW 12

59%

54°

10 PM

61°

60°

Partly Cloudy

NW 9

70%

51°


DECATUR, IL extended weather forecast
Saturday 25 APR 2026	Sunday 26 APR 2026	Monday 27 APR 2026	Tuesday 28 APR 2026	Wednesday 29 APR 2026
Low 46°	Low 50°	Low 54°	Low 52°	Low 47°
High 75°	High 72°	High 74°	High 69°	High 68°

Clear 8% Rain	Partly Cloudy 14% Rain	Overcast 63% Rain	Partly Cloudy 40% Rain	Overcast 23% Rain

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