DECATUR, IL 62521 Weather Forecast & Current Conditions

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62521 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
DECATUR, IL Current Weather
7:54 PM CST JAN 14, 2026
Scattered Clouds 25°F
Feels Like:	12°F
Dewpoint:	10°F
Rel. Hum.:	48%
Visibility:	10 miles
Wind:	NNW at 16 mph, gusts to 35
Pressure:	30.05 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
Mostly clear. Much cooler with lows around 15. Northwest winds 15 to 20 mph.

THURSDAY
Sunny. Highs in the upper 20s. Northwest winds around 10 mph with gusts up to 20 mph, becoming west in the afternoon.

THURSDAY NIGHT
Snow likely. Total snow accumulation around an inch possible. Lows in the lower 20s. Temperature rising into the upper 20s after midnight. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of snow 70 percent.

FRIDAY
Mostly cloudy. Not as cool with highs in the upper 30s. West winds 15 to 20 mph with gusts up to 30 mph.

FRIDAY NIGHT
Mostly cloudy with a 30 percent chance of snow. Little or no snow accumulation. Lows around 15. West winds 15 to 20 mph.

SATURDAY
Mostly cloudy and much cooler. Near steady temperature around 20. Wind chill values as low as zero.

SATURDAY NIGHT AND SUNDAY
Partly cloudy. Lows around 5 above. Highs around 20. Wind chill values as low as 10 below.

SUNDAY NIGHT
Mostly cloudy in the evening, then becoming partly cloudy. Lows around 10 above. Wind chill values as low as 5 below.

MARTIN LUTHER KING JR DAY
Mostly sunny. Highs around 20. Wind chill values as low as 5 below.

MONDAY NIGHT
Mostly clear. Cold with lows zero to 5 above zero. Wind chill values as low as 10 below after midnight.

TUESDAY AND TUESDAY NIGHT
Partly cloudy. Highs in the mid 20s. Lows around 15. Wind chill values as low as 10 below.

WEDNESDAY
Mostly sunny. Not as cool with highs in the mid 30s.

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 1/14/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
14 JAN 2026

12 PM

29°

15°

Mostly Cloudy

1%

0% Thunder
( 0% severe)

NNW 24

55%

16°

High 30°

3 PM

27°

13°

Mostly Cloudy

NNW 22

44%

10°

Mostly Cloudy

Breezy

6 PM

24°

10°

Mostly Cloudy

0%

0% Thunder
( 0% severe)

NNW 17

48%

9°

9 PM

22°

9°

Partly Cloudy

NNW 15

47%

7°

Thursday
15 JAN 2026

12 AM

20°

7°

Partly Cloudy

0%

0% Thunder
( 0% severe)

NNW 14

49%

6°

Low 14°

3 AM

18°

5°

Clear

NW 13

54%

6°

High 28°

6 AM

16°

3°

Clear

0%

0% Thunder
( 0% severe)

NW 12

60%

6°

Partly Cloudy

9 AM

18°

6°

Clear

NW 10

54%

6°

12 PM

23°

13°

Partly Cloudy

0%

0% Thunder
( 0% severe)

W 9

43%

6°

3 PM

27°

17°

Partly Cloudy

WSW 10

34%

5°

6 PM

24°

15°

Partly Cloudy

39%
SNOW
.1–1 in

0% Thunder
( 1% severe)

SSW 8

46%

8°

9 PM

25°

14°

Mostly Cloudy

SSW 12

51%

11°

Friday
16 JAN 2026

12 AM

27°

15°

Mostly Cloudy

37%
SNOW
2.5–5 in

0% Thunder
( 1% severe)

SSW 15

63%

17°

Low 23°

3 AM

29°

18°

Mostly Cloudy

SSW 15

70%

21°

High 39°

6 AM

30°

19°

Mostly Cloudy

3%

0% Thunder
( 2% severe)

WSW 15

74%

23°

Mostly Cloudy

Breezy

9 AM

33°

22°

Mostly Cloudy

W 17

78%

27°

12 PM

37°

27°

Mostly Cloudy

12%
SNOW
<.1 in

0% Thunder
( 4% severe)

W 20

66%

27°

3 PM

37°

27°

Mostly Cloudy

W 18

64%

26°

6 PM

33°

24°

Mostly Cloudy

W 13

71%

25°


DECATUR, IL extended weather forecast
Saturday 17 JAN 2026	Sunday 18 JAN 2026	Monday 19 JAN 2026	Tuesday 20 JAN 2026	Wednesday 21 JAN 2026
Low 17°	Low 5°	Low 11°	Low 12°	Low 16°
High 20°	High 19°	High 27°	High 26°	High 34°

Overcast 32% Snow	Mostly Cloudy 13% Snow	Mostly Cloudy 13% Snow	Partly Cloudy 13% Snow	Overcast 15% Snow

WEATHER SELECT BOX EXAMPLES:

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