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 PM CDT OCT 20, 2026
Clear 72°F
Feels Like:	72°F
Dewpoint:	43°F
Rel. Hum.:	35%
Visibility:	10 miles
Wind:	NNW at 3 mph
Pressure:	30.31 inches
Last 72 hours
Local Area Snow Depth
Illinois Current Weather
Illinois MOS Forecast Weather

Regional Weather Maps

(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

TONIGHT
Clear. Lows in the lower 40s. East winds around 5 mph.

WEDNESDAY
Sunny. Highs in the lower 70s. Light and variable winds.

WEDNESDAY NIGHT
Mostly clear. Lows in the mid 40s. Light and variable winds.

THURSDAY
Sunny. Highs in the mid 70s. Light and variable winds, becoming northeast around 5 mph in the afternoon.

THURSDAY NIGHT
Clear. Lows in the mid 40s. East winds around 5 mph.

FRIDAY AND FRIDAY NIGHT
Mostly clear. Highs in the lower 70s. Lows in the mid 40s.

SATURDAY THROUGH SUNDAY
Partly cloudy. Highs in the mid 70s. Lows in the upper 40s.

SUNDAY NIGHT THROUGH MONDAY NIGHT
Mostly cloudy. Lows in the upper 40s. Highs in the lower 70s.

TUESDAY
Mostly sunny. Highs in the mid 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 AM EDT 10/20/2026

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)

Tuesday
20 OCT 2026

1 PM

70°

Clear

0% Thunder
( 0% severe)

CALM

38%

43°

High 73°

4 PM

72°

Clear

CALM

33%

41°

Clear

7 PM

63°

64°

Clear

0% Thunder
( 0% severe)

E 3

52%

45°

10 PM

55°

Clear

E 3

66%

44°

Wednesday
21 OCT 2026

1 AM

50°

Clear

0% Thunder
( 0% severe)

CALM

80%

44°

Low 44°

4 AM

47°

46°

Clear

CALM

89%

44°

High 76°

7 AM

45°

44°

Clear

0% Thunder
( 0% severe)

CALM

93%

43°

Clear

10 AM

61°

62°

Clear

CALM

62%

48°

1 PM

72°

Clear

0% Thunder
( 1% severe)

CALM

39%

46°

4 PM

74°

Clear

CALM

34%

44°

7 PM

65°

Clear

0% Thunder
( 1% severe)

CALM

52%

47°

10 PM

57°

58°

Partly Cloudy

CALM

69%

47°

Thursday
22 OCT 2026

1 AM

52°

Clear

0% Thunder
( 1% severe)

CALM

80%

46°

Low 47°

4 AM

50°

Clear

CALM

83%

45°

High 77°

7 AM

48°

47°

Clear

0% Thunder
( 0% severe)

CALM

86%

44°

Clear

10 AM

63°

64°

Clear

CALM

60%

49°

1 PM

73°

Clear

0% Thunder
( 0% severe)

ENE 1

41%

48°

4 PM

75°

Clear

NE 5

37%

47°

7 PM

66°

Clear

ENE 6

54%

49°


DECATUR, IL extended weather forecast
Friday 23 OCT 2026	Saturday 24 OCT 2026	Sunday 25 OCT 2026	Monday 26 OCT 2026	Tuesday 27 OCT 2026
Low 45°	Low 42°	Low 51°	Low 52°	Low 47°
High 74°	High 77°	High 77°	High 70°	High 52°

Clear 6% Rain	Clear 7% Rain	Clear 12% Rain	Partly Cloudy 21% Rain	Partly Cloudy 41% Rain

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STATE WEATHER MAP:

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DECATUR, IL 62521 Weather Forecast & Current Conditions

DECATUR, IL Current Weather

DECATUR, IL 62521 Weather Forecast

DECATUR, IL 3 hourly weather forecast

DECATUR, IL extended weather forecast

DECATUR, IL
Current Weather

DECATUR, IL 62521
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