DECATUR, IL 62521 Weather Forecast & Current Conditions

Local Weather
- Local weather by ZIP or City
- Local area snow depth
- CURRENT WEATHER MAPS
- - Fronts & Pressure Centers
- - Current U.S. Temperatures
- - Northwest U.S.
- - Northeast U.S.
- - Mid-Atlantic U.S.
- - Midwest U.S.
- - Central Plains U.S.
- - Southeast U.S.
- - Southern Plains U.S.
- - Southwest U.S.
- - Alaska
10 Day Forecasts
Other Forecasts
- Snowstorm Forecast
- U.S. 6-hourly Snowfall Forecast
- 3 DAY NAM MODEL FORECASTS
- - Clouds & Precipitation
- - Temperature
- 7 DAY NWS FORECASTS
- - Weather Type
- - Precip. Probability
- - High Temperatures
- - Low Temperatures
- - Cloud Cover
- - Wind
- - Relative Humidity
- - Dewpoint
- - Snowfall
- SEASONAL FORECASTS
- - Temperature
- - Precipitation
Severe Weather
Radar
- U.S. RADAR (NWS interactive)
- U.S. RADAR (by state)
Satellite

62521 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
DECATUR, IL Current Weather
12:54 AM CST JAN 24, 2026
Few Clouds -2°F
Feels Like:	-18°F
Dewpoint:	-18°F
Rel. Hum.:	41%
Visibility:	10 miles
Wind:	NNE at 10 mph
Pressure:	30.72 inches
Last 72 hours
Local Area Snow Depth
Illinois Current Weather
Illinois MOS Forecast Weather

Weather Map

(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

REST OF TONIGHT
Cloudy, cold. Near steady temperature around 1 below. Northeast winds around 10 mph. Wind chill values as low as 21 below.

SATURDAY
Cloudy. Snow likely in the afternoon. Snow accumulation around an inch. Highs around 11. Northeast winds around 10 mph. Chance of snow 60 percent. Wind chill values as low as 18 below.

SATURDAY NIGHT
Snow. Additional snow accumulation of 1 to 3 inches. Not as cool. Near steady temperature around 9 above. Northeast winds 10 to 15 mph. Chance of snow near 100 percent. Wind chill values as low as 7 below.

SUNDAY
Snow. Additional moderate snow accumulation. Highs around 15. North winds 10 to 15 mph with gusts up to 25 mph. Chance of snow near 100 percent. Wind chill values as low as 8 below in the morning.

SUNDAY NIGHT
Mostly cloudy in the evening, then clearing. Colder with lows around 2 below. Northwest winds around 15 mph. Wind chill values as low as 21 below.

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

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

WEDNESDAY AND WEDNESDAY NIGHT
Mostly cloudy. Highs 15 to 20. Lows around zero. Wind chill values as low as 15 below.

THURSDAY AND THURSDAY NIGHT
Mostly clear. Highs 15 to 20. Lows around zero. Wind chill values as low as 15 below.

FRIDAY
Mostly sunny. Highs around 20. Wind chill values as low as 15 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 PM EST 1/23/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Saturday
24 JAN 2026

12 AM

-1°

-18°

Mostly Cloudy

6%

0% Thunder
( 0% severe)

NNE 10

35%

-20°

Low -3°

3 AM

-2°

-19°

Mostly Cloudy

NNE 10

37%

-20°

High 11°

6 AM

-1°

-18°

Mostly Cloudy

14%
RAIN/SNOW
<.05 in

0% Thunder
( 0% severe)

NE 10

41%

-17°

Mostly Cloudy

Snow Likely

9 AM

3°

-13°

Mostly Cloudy

ENE 10

42%

-13°

12 PM

8°

-7°

Mostly Cloudy

56%
SNOW
1–2.5 in

0% Thunder
( 2% severe)

ENE 12

42%

-8°

3 PM

10°

-5°

Mostly Cloudy

ENE 12

56%

-1°

6 PM

10°

-4°

Mostly Cloudy

75%
SNOW
1–2.5 in

0% Thunder
( 0% severe)

ENE 10

69%

3°

9 PM

10°

-4°

Mostly Cloudy

ENE 10

77%

5°

Sunday
25 JAN 2026

12 AM

11°

-3°

Mostly Cloudy

86%
SNOW
>20 in

0% Thunder
( 0% severe)

NE 10

77%

6°

Low 8°

3 AM

11°

-3°

Mostly Cloudy

NE 12

77%

6°

High 14°

6 AM

10°

-5°

Overcast

83%
SNOW
***

0% Thunder
( 0% severe)

NNE 13

81%

6°

Overcast

Snow Likely

9 AM

10°

-6°

Mostly Cloudy

NNE 14

86%

7°

12 PM

12°

-4°

Overcast

59%
SNOW
***

0% Thunder
( 0% severe)

N 15

81%

8°

3 PM

13°

-3°

Mostly Cloudy

N 15

77%

8°

6 PM

12°

-3°

Mostly Cloudy

31%
SNOW
.1–1 in

0% Thunder
( 0% severe)

NNW 14

77%

7°

9 PM

10°

-6°

Mostly Cloudy

NNW 14

73%

4°


DECATUR, IL extended weather forecast
Monday 26 JAN 2026	Tuesday 27 JAN 2026	Wednesday 28 JAN 2026	Thursday 29 JAN 2026	Friday 30 JAN 2026
Low 2°	Low 6°	Low 10°	Low 9°	Low 12°
High 13°	High 26°	High 18°	High 19°	High 23°

Partly Cloudy 6% Snow	Partly Cloudy 3% Snow	Mostly Cloudy 16% Snow	Mostly Cloudy 13% Snow	Mostly Cloudy 13% Snow

SELECT BOX EXAMPLES:

for LOCAL WEATHER:
SNOW DEPTH:
LOCAL WEATHER RADAR:
STATE WEATHER MAP:

Decatur, IL
Decatur, IL snow
Decatur, IL radar
IL map

-or-
-or-
-or-

62521
62521 snow
62521 radar

-or-
-or-

IL
IL snow

Copyright © 2024 WeatherStreet.com

Put our free WeatherStreet weather lookup on your web page.

Terms & Conditions
This is not clickable - please e-mail us separately

This is not clickable - please e-mail us separately