DECATUR, IL 62521 Weather Forecast & Current Conditions

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62521 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
DECATUR, IL Current Weather
2:54 AM CDT SEP 23, 2026
Overcast 61°F
Feels Like:	60°F
Dewpoint:	55°F
Rel. Hum.:	81%
Visibility:	10 miles
Wind:	ENE at 9 mph
Pressure:	30.26 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 2026 Hurricanes	DECATUR, IL 62521 Weather Forecast	Snowfall Forecast pages Snow Depth pages

REST OF TONIGHT
Cloudy. Near steady temperature in the upper 50s. Northeast winds 5 to 10 mph.

WEDNESDAY
Cloudy. Highs in the upper 60s. Northeast winds 10 to 15 mph.

WEDNESDAY NIGHT
Mostly cloudy. Lows in the mid 50s. Northeast winds 5 to 10 mph.

THURSDAY
Mostly cloudy. Highs in the mid 70s. Northeast winds 5 to 10 mph.

THURSDAY NIGHT
Mostly cloudy. Lows in the upper 50s. Northeast winds 5 to 10 mph.

FRIDAY AND FRIDAY NIGHT
Partly cloudy. Highs in the lower 70s. Lows in the lower 50s.

SATURDAY THROUGH SUNDAY
Mostly cloudy. Highs in the lower 70s. Lows in the mid 50s.

SUNDAY NIGHT AND MONDAY
Partly cloudy. Lows in the mid 50s. Highs around 80.

MONDAY NIGHT
Mostly clear. Lows in the upper 50s.

TUESDAY
Mostly sunny. A chance of showers in the afternoon. Highs in the lower 80s. Chance of rain 40 percent.

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 9/22/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

TIME
CDT

TEMP
(deg. F)

FEELS
LIKE

CLOUD
COVER

PRECIP
PROB.

THUNDER
PROB.

WIND
dir./mph

REL
HUM

DEWPT
(deg. F)

Wednesday
23 SEP 2026

1 AM

57°

56°

Mostly Cloudy

0% Thunder
( 1% severe)

NE 7

93%

55°

Low 56°

4 AM

57°

55°

Mostly Cloudy

NE 9

93%

55°

High 69°

7 AM

57°

55°

Mostly Cloudy

0% Thunder
( 1% severe)

NNE 10

90%

54°

Mostly Cloudy

10 AM

63°

62°

Mostly Cloudy

NE 12

78%

56°

1 PM

68°

Mostly Cloudy

0% Thunder
( 2% severe)

NE 13

65%

56°

4 PM

69°

Mostly Cloudy

NE 14

61%

55°

7 PM

65°

Mostly Cloudy

0% Thunder
( 1% severe)

NE 12

73%

56°

10 PM

61°

60°

Mostly Cloudy

NE 9

90%

58°

Thursday
24 SEP 2026

1 AM

58°

56°

Mostly Cloudy

0% Thunder
( 1% severe)

NE 8

96%

57°

Low 55°

4 AM

58°

56°

Mostly Cloudy

NE 8

93%

56°

High 75°

7 AM

57°

55°

Mostly Cloudy

0% Thunder
( 1% severe)

NE 8

93%

55°

Mostly Cloudy

10 AM

65°

Mostly Cloudy

ENE 8

73%

56°

1 PM

73°

Mostly Cloudy

0% Thunder
( 1% severe)

ENE 8

59%

58°

4 PM

75°

Mostly Cloudy

NE 9

55%

58°

7 PM

68°

Mostly Cloudy

0% Thunder
( 0% severe)

ENE 9

70%

58°

10 PM

63°

Partly Cloudy

ENE 7

90%

60°


DECATUR, IL extended weather forecast
Friday 25 SEP 2026	Saturday 26 SEP 2026	Sunday 27 SEP 2026	Monday 28 SEP 2026	Tuesday 29 SEP 2026
Low 55°	Low 50°	Low 47°	Low 47°	Low 51°
High 70°	High 73°	High 76°	High 76°	High 79°

Overcast 22% Rain	Overcast 24% Rain	Clear 16% Rain	Clear 14% Rain	Partly Cloudy 21% Rain