DECATUR, IL 62521 Weather Forecast & Current Conditions

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62521 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
DECATUR, IL Current Weather
3:54 PM CST JAN 25, 2026
Overcast 12°F
Feels Like:	-5°F
Dewpoint:	7°F
Rel. Hum.:	77%
Visibility:	5 miles
Wind:	NNW at 17 mph, gusts to 29
Pressure:	30.10 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 cloudy this evening, then clearing. Colder with lows around 7 below. Northwest winds 10 to 15 mph with gusts up to 25 mph. Wind chill values as low as 25 below.

MONDAY
Mostly sunny. Highs around 8 above. West winds 10 to 15 mph. Wind chill values as low as 25 below.

MONDAY NIGHT
Mostly clear. Cold with lows around 1 above. Temperature rising to around 10 above after midnight. Southwest winds 15 to 20 mph with gusts up to 30 mph. Wind chill values as low as 17 below.

TUESDAY
Mostly sunny. Not as cool with highs in the lower 20s. Temperature falling to around 16 in the afternoon. West winds 10 to 15 mph with gusts up to 25 mph. Wind chill values as low as 7 below in the morning.

TUESDAY NIGHT
Mostly clear. Cold with lows around 6 below. Northwest winds 5 to 10 mph. Wind chill values as low as 20 below.

WEDNESDAY
Partly sunny. Highs around 20. Wind chill values as low as 20 below in the morning.

WEDNESDAY NIGHT
Partly cloudy. Cold with lows around 5 below. Wind chill values as low as 20 below.

THURSDAY AND THURSDAY NIGHT
Mostly cloudy. Highs around 10 above. Lows around zero. Wind chill values as low as 20 below.

FRIDAY
Mostly sunny. Highs 10 to 15. Wind chill values as low as 15 below in the morning.

FRIDAY NIGHT
Mostly clear. Cold with lows around zero.

SATURDAY AND SATURDAY NIGHT
Partly cloudy. Highs 15 to 20. Lows zero to 5 above zero. Wind chill values as low as 15 below.

SUNDAY
Partly sunny. Highs in the mid 20s. Wind chill values as low as 10 below in the morning.

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 1/25/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Sunday
25 JAN 2026

12 PM

11°

-6°

Mostly Cloudy

63%
SNOW
10–20 in

0% Thunder
( 0% severe)

N 16

81%

7°

High 14°

3 PM

13°

-3°

Mostly Cloudy

NNW 16

77%

8°

Mostly Cloudy

Snow Likely

6 PM

10°

-6°

Mostly Cloudy

4%

0% Thunder
( 0% severe)

NNW 14

77%

5°

9 PM

6°

-11°

Partly Cloudy

NW 14

77%

1°

Monday
26 JAN 2026

12 AM

2°

-15°

Partly Cloudy

1%

0% Thunder
( 0% severe)

NW 12

76%

-3°

Low -6°

3 AM

-2°

-20°

Partly Cloudy

NW 12

72%

-8°

High 9°

6 AM

-4°

-22°

Partly Cloudy

0%

0% Thunder
( 0% severe)

WNW 12

76%

-9°

Partly Cloudy

9 AM

-2°

-20°

Partly Cloudy

NW 12

76%

-7°

12 PM

4°

-13°

Mostly Cloudy

0%

0% Thunder
( 0% severe)

WNW 13

72%

-2°

3 PM

7°

-8°

Partly Cloudy

W 12

65%

-1°

6 PM

3°

-12°

Partly Cloudy

0%

0% Thunder
( 0% severe)

SW 9

76%

-2°

9 PM

5°

-12°

Clear

SSW 13

72%

-1°

Tuesday
27 JAN 2026

12 AM

7°

-11°

Partly Cloudy

1%

0% Thunder
( 0% severe)

SSW 16

73%

1°

Low 2°

3 AM

10°

-7°

Partly Cloudy

SW 16

73%

4°

High 21°

6 AM

12°

-4°

Partly Cloudy

0%

0% Thunder
( 0% severe)

WSW 15

81%

8°

Partly Cloudy

9 AM

15°

0°

Mostly Cloudy

W 15

86%

12°

12 PM

19°

5°

Partly Cloudy

0%

0% Thunder
( 0% severe)

WNW 15

71%

12°

3 PM

18°

4°

Partly Cloudy

WNW 14

64%

9°

6 PM

12°

-1°

Partly Cloudy

NW 9

69%

5°


DECATUR, IL extended weather forecast
Wednesday 28 JAN 2026	Thursday 29 JAN 2026	Friday 30 JAN 2026	Saturday 31 JAN 2026	Sunday 1 FEB 2026
Low -7°	Low -6°	Low 9°	Low 9°	Low 7°
High 11°	High 15°	High 15°	High 14°	High 25°

Partly Cloudy 6% Snow	Mostly Cloudy 14% Snow	Overcast 30% Snow	Partly Cloudy 10% Snow	Overcast 18% Snow

WEATHER SELECT BOX EXAMPLES:

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