DECATUR, IL 62521 Weather Forecast & Current Conditions

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62521 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
DECATUR, IL Current Weather
11:54 AM CDT OCT 14, 2026
Overcast 73°F
Feels Like:	73°F
Dewpoint:	68°F
Rel. Hum.:	84%
Visibility:	10 miles
Wind:	NW at 3 mph
Pressure:	30.04 inches
Last 72 hours
Local Area Snow Depth
Illinois Current Weather
Illinois MOS Forecast Weather

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(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 cloudy with a 50 percent chance of showers. Much cooler. Near steady temperature in the mid 70s. North winds 5 to 10 mph.

TONIGHT
Mostly cloudy. A slight chance of showers after midnight. Lows in the upper 50s. Northeast winds 10 to 15 mph. Chance of rain 20 percent.

THURSDAY
Showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the mid 70s. East winds 5 to 10 mph, becoming south with gusts up to 20 mph in the afternoon. Chance of rain near 100 percent.

THURSDAY NIGHT
Showers likely with a chance of thunderstorms in the evening, then showers after midnight. Breezy, cooler with lows in the upper 40s. West winds 10 to 15 mph, becoming northwest 15 to 25 mph after midnight. Chance of rain 90 percent.

FRIDAY
Partly sunny and windy. Much cooler. Less humid with highs in the mid 50s. Northwest winds 20 to 30 mph.

FRIDAY NIGHT
Mostly clear. Areas of frost after midnight. Cooler with lows in the mid 30s.

SATURDAY
Areas of frost in the morning. Sunny. Highs in the upper 50s.

SATURDAY NIGHT
Clear. Lows in the mid 30s.

SUNDAY
Areas of frost in the morning. Sunny. Not as cool with highs around 70.

SUNDAY NIGHT
Partly cloudy. Lows in the mid 40s.

MONDAY
Partly sunny. Highs in the lower 70s.

MONDAY NIGHT AND TUESDAY
Partly cloudy. Lows in the upper 40s. Highs in the mid 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 10/14/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
14 OCT 2026

1 PM

73°

73°

Mostly Cloudy

14%
RAIN
.01–.1 in

0% Thunder
( 12% severe)

N 6

79%

66°

High 76°

4 PM

75°

75°

Mostly Cloudy

N 8

69%

64°

Mostly Cloudy

7 PM

69°

69°

Mostly Cloudy

8%

0% Thunder
( 10% severe)

NNE 9

84%

64°

10 PM

63°

62°

Mostly Cloudy

ENE 10

93%

61°

Thursday
15 OCT 2026

1 AM

60°

59°

Mostly Cloudy

24%
RAIN
.5–1 in

0% Thunder
( 12% severe)

ENE 9

96%

59°

Low 58°

4 AM

60°

59°

Mostly Cloudy

ENE 9

96%

59°

High 76°

7 AM

61°

60°

Mostly Cloudy

82%
RAIN
***

0% Thunder
( 23% severe)

E 8

100%

61°

Mostly Cloudy

Rain Likely

10 AM

67°

67°

Mostly Cloudy

ESE 8

93%

65°

1 PM

71°

71°

Mostly Cloudy

76%
RAIN
>2 in

0% Thunder
( 36% severe)

SE 9

90%

68°

4 PM

75°

75°

Mostly Cloudy

S 10

79%

68°

7 PM

69°

69°

Mostly Cloudy

67%
RAIN
***

0% Thunder
( 31% severe)

SW 10

100%

69°

10 PM

66°

66°

Mostly Cloudy

SW 12

100%

66°

Friday
16 OCT 2026

1 AM

60°

57°

Mostly Cloudy

24%
RAIN
.01–.1 in

0% Thunder
( 11% severe)

W 15

100%

60°

Low 44°

4 AM

52°

46°

Mostly Cloudy

WNW 18

100%

52°

High 57°

7 AM

47°

40°

Mostly Cloudy

9%

0% Thunder
( 1% severe)

NW 20

93%

45°

Mostly Cloudy

Chance of Rain

Windy

10 AM

51°

45°

Mostly Cloudy

NW 22

77%

44°

1 PM

54°

49°

Mostly Cloudy

20%
RAIN
<.01 in

0% Thunder
( 3% severe)

NW 22

64%

42°

4 PM

55°

50°

Mostly Cloudy

NW 22

57%

40°

7 PM

51°

46°

Mostly Cloudy

NNW 15

71%

42°


DECATUR, IL extended weather forecast
Saturday 17 OCT 2026	Sunday 18 OCT 2026	Monday 19 OCT 2026	Tuesday 20 OCT 2026	Wednesday 21 OCT 2026
Low 40°	Low 37°	Low 44°	Low 49°	Low 47°
High 58°	High 68°	High 67°	High 67°	High 69°

Clear 2% Rain	Clear 5% Rain	Partly Cloudy 8% Rain	Partly Cloudy 18% Rain	Partly Cloudy 27% Rain

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