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 AUG 26, 2026
Broken Clouds 84°F
Feels Like:	90°F
Dewpoint:	72°F
Rel. Hum.:	67%
Visibility:	10 miles
Wind:	WSW at 12 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
Mostly sunny with a slight chance of showers and thunderstorms. Near steady temperature in the mid 80s. West winds around 10 mph with gusts up to 20 mph. Chance of rain 20 percent.

TONIGHT
Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows in the lower 60s. Northwest winds 5 to 10 mph. Chance of rain 20 percent.

THURSDAY
Sunny. Highs in the lower 80s. Northwest winds 5 to 10 mph.

THURSDAY NIGHT
Mostly clear. Lows in the lower 60s. North winds 5 to 10 mph.

FRIDAY
Sunny. Highs in the lower 80s. Northeast winds around 5 mph.

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

SATURDAY AND SATURDAY NIGHT
Partly cloudy. Highs in the mid 80s. Lows in the mid 60s.

SUNDAY AND SUNDAY NIGHT
Mostly clear. Highs in the upper 80s. Lows around 70.

MONDAY THROUGH TUESDAY
Partly cloudy. Highs in the lower 90s. Lows in the lower 70s.

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 8/26/2026

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)

Wednesday
26 AUG 2026

1 PM

84°

88°

Partly Cloudy

25%
RAIN
.1–.25 in

0% Thunder
( 25% severe)

W 12

63%

70°

High 85°

4 PM

84°

87°

Partly Cloudy

WNW 14

59%

68°

Partly Cloudy

Chance of Rain

7 PM

79°

81°

Clear

0% Thunder
( 6% severe)

NW 9

67%

67°

10 PM

71°

Clear

NW 6

87%

67°

Thursday
27 AUG 2026

1 AM

68°

Partly Cloudy

0% Thunder
( 2% severe)

WNW 5

90%

65°

Low 64°

4 AM

66°

Clear

NW 6

93%

64°

High 83°

7 AM

65°

Partly Cloudy

0% Thunder
( 2% severe)

NW 6

97%

64°

Partly Cloudy

10 AM

75°

Clear

NNW 7

71%

65°

1 PM

81°

82°

Partly Cloudy

0% Thunder
( 8% severe)

NNW 9

54%

63°

4 PM

81°

82°

Partly Cloudy

N 10

54%

63°

7 PM

77°

79°

Partly Cloudy

11%
RAIN
<.01 in

0% Thunder
( 5% severe)

N 8

64%

64°

10 PM

69°

Clear

N 5

84%

64°

Friday
28 AUG 2026

1 AM

65°

Clear

0% Thunder
( 0% severe)

NNE 3

93%

63°

Low 62°

4 AM

63°

64°

Clear

NNE 2

97%

62°

High 82°

7 AM

63°

64°

Clear

0% Thunder
( 1% severe)

NNE 2

93%

61°

Clear

10 AM

75°

Clear

ENE 5

62%

61°

1 PM

80°

81°

Clear

0% Thunder
( 7% severe)

NE 6

47%

58°

4 PM

80°

81°

Partly Cloudy

ENE 7

49%

59°

7 PM

76°

78°

Clear

E 7

60%

61°


DECATUR, IL extended weather forecast
Saturday 29 AUG 2026	Sunday 30 AUG 2026	Monday 31 AUG 2026	Tuesday 1 SEP 2026	Wednesday 2 SEP 2026
Low 58°	Low 63°	Low 66°	Low 72°	Low 66°
High 86°	High 89°	High 93°	High 93°	High 92°

Partly Cloudy 6% Rain	Partly Cloudy 13% Rain	Partly Cloudy 17% Rain	Partly Cloudy 24% Rain	Partly Cloudy 33% 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