DECATUR, IL 62521 Weather Forecast & Current Conditions

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62521 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
DECATUR, IL Current Weather
7:54 AM CDT JUL 21, 2026
Scattered Clouds 79°F
Feels Like:	82°F
Dewpoint:	73°F
Rel. Hum.:	82%
Visibility:	10 miles
Wind:	WSW at 6 mph
Pressure:	29.79 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 TODAY
Mostly sunny. A chance of showers with a slight chance of thunderstorms this morning. Highs in the upper 80s. Northwest winds 15 to 20 mph. Chance of rain 30 percent.

TONIGHT
Mostly clear in the evening, then becoming partly cloudy. Cooler with lows in the lower 60s. Northwest winds 10 to 15 mph.

WEDNESDAY
Mostly sunny. Cooler with highs in the mid 70s. North winds around 10 mph.

WEDNESDAY NIGHT
Partly cloudy in the evening, then clearing. Lows in the mid 50s. Northeast winds 5 to 10 mph.

THURSDAY
Sunny. Highs in the mid 70s. East winds around 5 mph.

THURSDAY NIGHT
Partly cloudy. Lows in the upper 50s.

FRIDAY
Partly sunny. Highs in the upper 70s.

FRIDAY NIGHT AND SATURDAY
Partly cloudy. Lows in the upper 50s. Highs in the lower 80s.

SATURDAY NIGHT THROUGH MONDAY
Mostly clear. Lows in the upper 60s. Highs in the upper 80s.

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 7/20/2026

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
21 JUL 2026

1 AM

77°

79°

Mostly Cloudy

44%
RAIN
***

0% Thunder
( 48% severe)

WSW 12

82%

71°

Low 75°

4 AM

77°

78°

Mostly Cloudy

SW 13

87%

73°

High 87°

7 AM

76°

Partly Cloudy

15%
RAIN
.01–.1 in

0% Thunder
( 27% severe)

WNW 12

90%

73°

Partly Cloudy

10 AM

82°

87°

Partly Cloudy

W 12

74%

73°

1 PM

86°

91°

Partly Cloudy

0% Thunder
( 13% severe)

WNW 15

59%

70°

4 PM

85°

88°

Partly Cloudy

NW 17

57%

68°

7 PM

81°

83°

Clear

0% Thunder
( 4% severe)

NNW 15

60%

66°

10 PM

73°

Partly Cloudy

NNW 9

76%

65°

Wednesday
22 JUL 2026

1 AM

69°

Partly Cloudy

0% Thunder
( 2% severe)

NNW 9

81%

63°

Low 64°

4 AM

66°

Partly Cloudy

N 10

84%

61°

High 77°

7 AM

66°

Partly Cloudy

0% Thunder
( 4% severe)

N 10

84%

61°

Mostly Cloudy

10 AM

71°

Partly Cloudy

NE 12

66%

59°

1 PM

75°

Mostly Cloudy

0% Thunder
( 2% severe)

N 12

52%

56°

4 PM

75°

Mostly Cloudy

N 13

50%

55°

7 PM

73°

Partly Cloudy

0% Thunder
( 2% severe)

N 9

51%

54°

10 PM

65°

Partly Cloudy

NE 7

68%

54°


DECATUR, IL extended weather forecast
Thursday 23 JUL 2026	Friday 24 JUL 2026	Saturday 25 JUL 2026	Sunday 26 JUL 2026	Monday 27 JUL 2026
Low 54°	Low 62°	Low 63°	Low 69°	Low 74°
High 80°	High 72°	High 83°	High 93°	High 95°

Partly Cloudy 5% Rain	Overcast 54% Rain	Overcast 36% Rain	Partly Cloudy 12% Rain	Partly Cloudy 17% 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
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