DECATUR, IL 62521 Weather Forecast & Current Conditions

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62521 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
DECATUR, IL Current Weather
5:54 PM CST DEC 1, 2025
Overcast Light Snow Mist 25°F
Feels Like:	25°F
Dewpoint:	23°F
Rel. Hum.:	91%
Visibility:	1 1/2 miles
Wind:	Calm
Pressure:	30.13 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 2025 Hurricanes	DECATUR, IL 62521 Weather Forecast	Snowfall Forecast pages Snow Depth pages

TONIGHT
Snow, mainly this evening. Snow accumulation of 1 to 3 inches. Lows around 15. Southwest winds around 5 mph, becoming northwest around 5 mph after midnight. Chance of snow near 100 percent.

TUESDAY
Mostly cloudy. Highs in the lower 20s. Northwest winds 5 to 10 mph, becoming west in the afternoon.

TUESDAY NIGHT
Mostly cloudy. Lows around 16. Temperature rising into the lower 20s after midnight. South winds 5 to 10 mph.

WEDNESDAY
Partly sunny in the morning, then becoming mostly cloudy. Not as cool with highs in the lower 30s. Southwest winds 10 to 15 mph.

WEDNESDAY NIGHT
Mostly cloudy. Colder with lows around 3 above. Northwest winds 10 to 15 mph. Wind chill values as low as 10 below after midnight.

THURSDAY
Sunny. Much cooler with highs around 10 above. Wind chill values as low as 10 below in the morning.

THURSDAY NIGHT AND FRIDAY
Partly cloudy. Lows 5 below to zero. Highs in the upper 20s. Wind chill values as low as 15 below.

FRIDAY NIGHT THROUGH SUNDAY
Mostly cloudy. Lows around 20. Highs in the lower 30s.

SUNDAY NIGHT AND MONDAY
Mostly cloudy. Lows around 10 above. Highs in the upper 20s.

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 7:00 AM EST 12/ 1/2025

DAY/DATE &
WEATHER FORECAST SUMMARY

Monday
1 DEC 2025

12 PM

26°

19°

Mostly Cloudy

81%
SNOW
***

0% Thunder
( 1% severe)

SE 6

91%

24°

High 28°

3 PM

27°

24°

Overcast

SSE 2

92%

25°

Overcast

Snow

6 PM

26°

23°

Overcast

92%
SNOW
***

0% Thunder
( 0% severe)

SE 2

96%

25°

9 PM

25°

21°

Mostly Cloudy

W 2

96%

24°

Tuesday
2 DEC 2025

12 AM

23°

16°

Mostly Cloudy

10%
SNOW
.1–1 in

0% Thunder
( 0% severe)

WNW 6

95%

22°

Low 15°

3 AM

20°

10°

Mostly Cloudy

WNW 8

95%

19°

High 24°

6 AM

17°

6°

Mostly Cloudy

1%

0% Thunder
( 0% severe)

NW 8

95%

16°

Mostly Cloudy

9 AM

19°

9°

Mostly Cloudy

WNW 8

91%

17°

12 PM

22°

13°

Mostly Cloudy

1%

0% Thunder
( 0% severe)

W 8

87%

19°

3 PM

23°

15°

Mostly Cloudy

W 7

83%

19°

6 PM

20°

12°

Mostly Cloudy

0%

0% Thunder
( 0% severe)

SSW 6

91%

18°

9 PM

20°

11°

Mostly Cloudy

S 7

91%

18°

Wednesday
3 DEC 2025

12 AM

20°

10°

Mostly Cloudy

0%

0% Thunder
( 0% severe)

S 8

91%

18°

Low 17°

3 AM

22°

11°

Mostly Cloudy

S 10

87%

19°

High 33°

6 AM

22°

10°

Mostly Cloudy

1%

0% Thunder
( 0% severe)

S 12

87%

19°

Mostly Cloudy

9 AM

26°

15°

Mostly Cloudy

SSW 12

87%

23°

12 PM

31°

22°

Mostly Cloudy

18%
SNOW
<.1 in

0% Thunder
( 1% severe)

SSW 12

84%

27°

3 PM

33°

25°

Mostly Cloudy

WSW 10

81%

28°

6 PM

30°

22°

Mostly Cloudy

W 8

92%

28°


DECATUR, IL extended weather forecast
Thursday 4 DEC 2025	Friday 5 DEC 2025	Saturday 6 DEC 2025	Sunday 7 DEC 2025	Monday 8 DEC 2025
Low 6°	Low -2°	Low 22°	Low 27°	Low 19°
High 19°	High 32°	High 38°	High 35°	High 34°

Mostly Cloudy 29% Snow	Partly Cloudy 7% Snow	Mostly Cloudy 26% Rain/Snow	Overcast 59% Rain/Snow	Mostly Cloudy 15% Snow

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