DECATUR, IL 62521 Weather Forecast & Current Conditions

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62521 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
DECATUR, IL Current Weather
1:54 PM CDT SEP 4, 2026
Clear 97°F
Feels Like:	104°F
Dewpoint:	70°F
Rel. Hum.:	42%
Visibility:	10 miles
Wind:	Variable at 7 mph
Pressure:	29.97 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

THIS AFTERNOON
Sunny, hot. Near steady temperature in the mid 90s. Southwest winds 5 to 10 mph. Heat index values up to 104.

TONIGHT
Mostly clear. Lows in the lower 70s. Southwest winds around 5 mph.

SATURDAY
Sunny, hot with highs in the upper 90s. West winds around 5 mph, becoming northwest in the afternoon. Heat index values up to 105.

SATURDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 60s. Northeast winds 5 to 10 mph.

SUNDAY
Mostly sunny. Not as warm with highs in the upper 80s. Northeast winds 10 to 15 mph.

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

TUESDAY THROUGH WEDNESDAY
Mostly clear. Hot. Highs in the mid 90s. Lows in the lower 70s.

WEDNESDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. A chance of showers after midnight. Lows around 70. Chance of rain 30 percent.

THURSDAY
Mostly sunny. 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 AM EDT 9/ 4/2026

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)

Friday
4 SEP 2026

1 PM

92°

98°

Clear

0% Thunder
( 10% severe)

W 9

49%

70°

High 95°

4 PM

94°

99°

Clear

SW 8

43%

68°

Clear

7 PM

86°

90°

Clear

0% Thunder
( 9% severe)

SSW 5

57%

69°

10 PM

78°

80°

Partly Cloudy

S 1

76%

70°

Saturday
5 SEP 2026

1 AM

76°

77°

Partly Cloudy

0% Thunder
( 12% severe)

SSW 2

82%

70°

Low 74°

4 AM

75°

Partly Cloudy

WSW 3

84%

70°

High 93°

7 AM

74°

Partly Cloudy

0% Thunder
( 10% severe)

WSW 3

87%

70°

Clear

10 AM

84°

90°

Clear

W 6

67%

72°

1 PM

91°

98°

Clear

0% Thunder
( 16% severe)

NW 9

52%

71°

4 PM

92°

98°

Clear

NNW 10

49%

70°

7 PM

85°

90°

Partly Cloudy

0% Thunder
( 7% severe)

N 9

61%

70°

10 PM

76°

Clear

NE 9

87%

72°

Sunday
6 SEP 2026

1 AM

72°

Partly Cloudy

0% Thunder
( 4% severe)

NE 8

97%

71°

Low 68°

4 AM

70°

Mostly Cloudy

NE 8

100%

70°

High 85°

7 AM

68°

Partly Cloudy

0% Thunder
( 2% severe)

ENE 8

100%

68°

Partly Cloudy

10 AM

77°

79°

Partly Cloudy

ENE 10

69%

66°

1 PM

83°

84°

Clear

0% Thunder
( 3% severe)

ENE 12

53%

64°

4 PM

83°

84°

Partly Cloudy

ENE 13

51%

63°

7 PM

78°

80°

Clear

ENE 12

58%

62°


DECATUR, IL extended weather forecast
Monday 7 SEP 2026	Tuesday 8 SEP 2026	Wednesday 9 SEP 2026	Thursday 10 SEP 2026	Friday 11 SEP 2026
Low 58°	Low 60°	Low 65°	Low 64°	Low 57°
High 84°	High 91°	High 94°	High 90°	High 80°

Clear 6% Rain	Clear 10% Rain	Partly Cloudy 16% Rain	Clear 14% Rain	Partly Cloudy 22% Rain

WEATHER SELECT BOX EXAMPLES:

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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
Weather Forecast