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 PM CDT SEP 1, 2026
Clear 97°F
Feels Like:	104°F
Dewpoint:	70°F
Rel. Hum.:	42%
Visibility:	10 miles
Wind:	W at 8 mph
Pressure:	30.00 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 103.

TONIGHT
Mostly clear. Lows in the mid 70s. South winds 5 to 10 mph.

WEDNESDAY
Sunny, hot with highs in the upper 90s. Southwest winds 5 to 10 mph. Heat index values up to 104.

WEDNESDAY NIGHT
Mostly clear. Lows in the upper 70s. South winds 5 to 10 mph.

THURSDAY
Sunny, hot with highs in the upper 90s. Southwest winds 5 to 10 mph. Heat index values up to 105.

THURSDAY NIGHT AND FRIDAY
Mostly clear. Hot. Lows in the mid 70s. Highs in the mid 90s.

FRIDAY NIGHT THROUGH SATURDAY NIGHT
Partly cloudy. Hot. Lows in the lower 70s. Highs in the mid 90s.

SUNDAY THROUGH LABOR DAY
Partly cloudy. Highs in the upper 80s. Lows in the upper 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 9/ 1/2026

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
1 SEP 2026

1 PM

94°

98°

Clear

0% Thunder
( 7% severe)

WSW 9

41%

67°

High 97°

4 PM

96°

98°

Clear

SW 7

35%

64°

Clear

7 PM

90°

94°

Clear

0% Thunder
( 5% severe)

S 6

49%

68°

10 PM

80°

83°

Clear

S 6

67%

68°

Wednesday
2 SEP 2026

1 AM

79°

81°

Clear

0% Thunder
( 5% severe)

SSW 8

67%

67°

Low 76°

4 AM

78°

80°

Clear

SSW 8

69%

67°

High 98°

7 AM

77°

79°

Partly Cloudy

0% Thunder
( 6% severe)

SSW 8

71%

67°

Partly Cloudy

10 AM

88°

93°

Clear

SW 10

54%

69°

1 PM

95°

100°

Partly Cloudy

0% Thunder
( 16% severe)

SW 12

42%

68°

4 PM

95°

98°

Partly Cloudy

SW 12

39%

66°

7 PM

90°

94°

Clear

0% Thunder
( 7% severe)

SSW 9

49%

68°

10 PM

82°

85°

Partly Cloudy

SSW 7

63%

68°

Thursday
3 SEP 2026

1 AM

80°

83°

Partly Cloudy

0% Thunder
( 5% severe)

SSW 8

67%

68°

Low 77°

4 AM

78°

80°

Clear

SSW 8

71%

68°

High 97°

7 AM

77°

79°

Partly Cloudy

0% Thunder
( 5% severe)

SSW 8

71%

67°

Partly Cloudy

10 AM

89°

94°

Clear

SW 10

52%

69°

1 PM

95°

99°

Partly Cloudy

0% Thunder
( 16% severe)

WSW 10

40%

67°

4 PM

94°

98°

Partly Cloudy

SW 9

41%

67°

7 PM

90°

94°

Partly Cloudy

S 7

49%

68°


DECATUR, IL extended weather forecast
Friday 4 SEP 2026	Saturday 5 SEP 2026	Sunday 6 SEP 2026	Monday 7 SEP 2026	Tuesday 8 SEP 2026
Low 71°	Low 70°	Low 67°	Low 69°	Low 63°
High 97°	High 93°	High 90°	High 89°	High 82°

Partly Cloudy 20% Rain	Partly Cloudy 29% Rain	Partly Cloudy 45% Rain	Partly Cloudy 48% Rain	Overcast 33% 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