DECATUR, IL 62521 Weather Forecast & Current Conditions

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62521 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
DECATUR, IL Current Weather
10:54 AM CDT OCT 8, 2026
Clear 72°F
Feels Like:	72°F
Dewpoint:	48°F
Rel. Hum.:	43%
Visibility:	10 miles
Wind:	Calm
Pressure:	30.14 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

REST OF TODAY
Sunny. Highs in the lower 80s. East winds around 5 mph, becoming west this afternoon.

TONIGHT
Mostly clear. Lows in the lower 50s. Northeast winds around 5 mph, becoming southeast after midnight.

FRIDAY
Sunny. Highs in the mid 80s. South winds 10 to 15 mph.

FRIDAY NIGHT
Clear. Lows around 60. South winds 5 to 10 mph.

SATURDAY
Sunny in the morning, then becoming partly sunny. Highs in the mid 80s. South winds 10 to 15 mph.

SATURDAY NIGHT
Mostly cloudy. A chance of showers in the evening, then showers likely after midnight. Lows in the upper 50s. Chance of rain 60 percent.

SUNDAY
Mostly cloudy with a chance of showers in the morning, then mostly sunny in the afternoon. Highs in the mid 70s. Chance of rain 50 percent.

SUNDAY NIGHT THROUGH MONDAY NIGHT
Mostly clear. Lows in the upper 50s. Highs in the mid 80s.

TUESDAY
Mostly sunny. Cooler with highs in the mid 70s.

TUESDAY NIGHT AND WEDNESDAY
Mostly clear. Lows in the upper 40s. Highs 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 9/30/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
30 SEP 2026

1 PM

81°

81°

Mostly Cloudy

5%

0% Thunder
( 3% severe)

SSW 10

39%

54°

High 86°

4 PM

85°

84°

Mostly Cloudy

S 10

39%

57°

Mostly Cloudy

7 PM

79°

80°

Mostly Cloudy

4%

0% Thunder
( 2% severe)

E 8

52%

60°

10 PM

74°

74°

Mostly Cloudy

SE 10

64%

61°

Thursday
1 OCT 2026

1 AM

73°

73°

Mostly Cloudy

4%

0% Thunder
( 2% severe)

S 10

66%

61°

Low 72°

4 AM

73°

73°

Mostly Cloudy

S 12

66%

61°

High 86°

7 AM

72°

72°

Mostly Cloudy

14%
RAIN
<.01 in

0% Thunder
( 2% severe)

S 13

68%

61°

Mostly Cloudy

Rain Likely

10 AM

79°

80°

Mostly Cloudy

SSW 14

56%

62°

1 PM

83°

84°

Mostly Cloudy

51%
RAIN
***

0% Thunder
( 13% severe)

SW 14

53%

64°

4 PM

82°

84°

Mostly Cloudy

WSW 13

56%

65°

7 PM

75°

75°

Mostly Cloudy

80%
RAIN
***

0% Thunder
( 21% severe)

NW 9

76%

67°

10 PM

70°

70°

Mostly Cloudy

NNW 7

93%

68°

Friday
2 OCT 2026

1 AM

67°

67°

Mostly Cloudy

78%
RAIN
***

0% Thunder
( 16% severe)

N 8

100%

67°

Low 61°

4 AM

65°

65°

Mostly Cloudy

NA 10

97%

64°

High 72°

7 AM

63°

61°

Mostly Cloudy

22%
RAIN
.1–.25 in

0% Thunder
( 4% severe)

N 14

93%

61°

Decreasing Clouds

Chance of Rain

10 AM

64°

63°

Mostly Cloudy

NNE 14

81%

58°

1 PM

68°

68°

Partly Cloudy

3%

0% Thunder
( 1% severe)

NNE 15

63%

55°

4 PM

70°

70°

Clear

NNE 15

51%

51°

7 PM

64°

63°

Clear

NNE 10

67%

53°


DECATUR, IL extended weather forecast
Saturday 3 OCT 2026	Sunday 4 OCT 2026	Monday 5 OCT 2026	Tuesday 6 OCT 2026	Wednesday 7 OCT 2026
Low 46°	Low 47°	Low 48°	Low 40°	Low 46°
High 74°	High 76°	High 68°	High 68°	High 74°

Clear 8% Rain	Clear 19% Rain	Clear 16% Rain	Clear 9% Rain	Partly Cloudy 20% Rain

WEATHER SELECT BOX EXAMPLES:

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