DECATUR, IL 62521 Weather Forecast & Current Conditions

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62521 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
DECATUR, IL Current Weather
12:54 PM CDT MAY 26, 2026
Few Clouds 79°F
Feels Like:	80°F
Dewpoint:	61°F
Rel. Hum.:	54%
Visibility:	10 miles
Wind:	E at 9 mph
Pressure:	30.03 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 2025 Hurricanes	DECATUR, IL 62521 Weather Forecast	Snowfall Forecast pages Snow Depth pages

THIS AFTERNOON
Mostly cloudy. Near steady temperature around 80. East winds 5 to 10 mph.

TONIGHT
Mostly cloudy. A slight chance of showers after midnight. Lows in the lower 60s. East winds around 5 mph. Chance of rain 20 percent.

WEDNESDAY
Partly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 80s. Northeast winds 5 to 10 mph. Chance of rain 20 percent.

WEDNESDAY NIGHT
Mostly clear. Lows in the upper 50s. Northeast winds 5 to 10 mph.

THURSDAY
Mostly sunny. Highs in the lower 80s. Northeast winds 10 to 15 mph.

THURSDAY NIGHT THROUGH SATURDAY
Partly cloudy. Lows in the upper 50s. Highs around 80.

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

SUNDAY THROUGH MONDAY
Partly cloudy. Highs in the upper 70s. Lows in the mid 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 8:00 AM EDT 5/26/2026

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
26 MAY 2026

1 PM

77°

79°

Mostly Cloudy

0% Thunder
( 8% severe)

E 9

52%

58°

High 80°

4 PM

79°

80°

Mostly Cloudy

ESE 8

49%

58°

Mostly Cloudy

7 PM

75°

Mostly Cloudy

10%
RAIN
<.01 in

0% Thunder
( 10% severe)

ESE 7

60%

60°

10 PM

68°

Mostly Cloudy

ESE 6

76%

60°

Wednesday
27 MAY 2026

1 AM

65°

Mostly Cloudy

20%
RAIN
.25–.5 in

0% Thunder
( 9% severe)

ENE 5

84%

60°

Low 62°

4 AM

64°

65°

Mostly Cloudy

NE 3

87%

60°

High 81°

7 AM

64°

Mostly Cloudy

14%
RAIN
<.01 in

0% Thunder
( 8% severe)

ENE 6

90%

61°

Partly Cloudy

10 AM

72°

Partly Cloudy

NE 7

73%

63°

1 PM

77°

79°

Partly Cloudy

16%
RAIN
.01–.1 in

0% Thunder
( 14% severe)

NNE 8

60%

62°

4 PM

80°

81°

Partly Cloudy

NNE 9

52%

61°

7 PM

78°

80°

Partly Cloudy

0% Thunder
( 10% severe)

NE 7

56%

61°

10 PM

68°

Partly Cloudy

ENE 5

76%

60°

Thursday
28 MAY 2026

1 AM

64°

Partly Cloudy

0% Thunder
( 4% severe)

ENE 6

81%

58°

Low 60°

4 AM

61°

60°

Partly Cloudy

NNE 9

81%

55°

High 81°

7 AM

62°

61°

Partly Cloudy

0% Thunder
( 3% severe)

NE 12

75%

54°

Partly Cloudy

10 AM

72°

Partly Cloudy

NE 12

61%

58°

1 PM

79°

80°

Partly Cloudy

0% Thunder
( 7% severe)

NE 13

50%

59°

4 PM

81°

Partly Cloudy

ENE 14

44%

57°

7 PM

76°

78°

Partly Cloudy

ENE 12

50%

56°


DECATUR, IL extended weather forecast
Friday 29 MAY 2026	Saturday 30 MAY 2026	Sunday 31 MAY 2026	Monday 1 JUN 2026	Tuesday 2 JUN 2026
Low 57°	Low 55°	Low 53°	Low 54°	Low 61°
High 79°	High 78°	High 75°	High 78°	High 82°

Clear 8% Rain	Clear 15% Rain	Clear 14% Rain	Clear 14% Rain	Clear 18% Rain

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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
Weather Forecast