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 PM CDT MAY 13, 2026
Scattered Clouds 66°F
Feels Like:	66°F
Dewpoint:	45°F
Rel. Hum.:	47%
Visibility:	10 miles
Wind:	NNW at 20 mph, gusts to 29
Pressure:	30.02 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

THIS AFTERNOON
Mostly sunny and cooler. Near steady temperature in the upper 60s. Northwest winds 15 to 20 mph.

TONIGHT
Clear, cooler with lows in the lower 40s. North winds 10 to 15 mph with gusts up to 25 mph, diminishing to around 5 mph after midnight.

THURSDAY
Sunny. Highs in the lower 70s. Northwest winds around 5 mph, becoming west in the afternoon.

THURSDAY NIGHT
Partly cloudy in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Not as cool with lows in the lower 50s. Southeast winds 10 to 15 mph. Chance of rain 50 percent.

FRIDAY
Showers likely with a chance of thunderstorms in the morning, then partly sunny in the afternoon. Breezy with highs in the mid 70s. South winds 15 to 25 mph. Chance of rain 70 percent.

FRIDAY NIGHT
Partly cloudy. A chance of showers and thunderstorms after midnight. Not as cool with lows in the lower 60s. Chance of rain 40 percent.

SATURDAY
Mostly sunny with a chance of showers and thunderstorms. Highs in the mid 80s. Chance of rain 50 percent.

SATURDAY NIGHT
A chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows in the mid 60s. Chance of rain 50 percent.

SUNDAY
Mostly sunny. A chance of showers and thunderstorms in the afternoon. Breezy with highs in the upper 80s. Chance of rain 30 percent.

SUNDAY NIGHT
Partly cloudy. Lows in the upper 60s.

MONDAY
Mostly sunny. A chance of showers and thunderstorms in the afternoon. Windy with highs around 90. Chance of rain 50 percent.

MONDAY NIGHT
Mostly cloudy. A chance of showers and thunderstorms in the evening, then showers likely after midnight. Breezy with lows in the upper 60s. Chance of rain 60 percent.

TUESDAY
Showers likely. Cooler with highs in the upper 70s. Chance of rain 70 percent.

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 5/13/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
13 MAY 2026

1 PM

66°

66°

Partly Cloudy

0%

0% Thunder
( 1% severe)

NNW 18

43%

43°

High 68°

4 PM

67°

67°

Clear

NNW 20

37%

40°

Clear

7 PM

63°

61°

Clear

0%

0% Thunder
( 1% severe)

N 16

39%

38°

10 PM

55°

53°

Clear

N 7

53%

38°

Thursday
14 MAY 2026

1 AM

49°

49°

Clear

0%

0% Thunder
( 1% severe)

NE 2

66%

38°

Low 44°

4 AM

46°

45°

Clear

CALM

73%

38°

High 72°

7 AM

47°

46°

Clear

0%

0% Thunder
( 0% severe)

CALM

74%

39°

Clear

10 AM

60°

61°

Clear

NNE 3

46%

39°

1 PM

67°

67°

Clear

0%

0% Thunder
( 1% severe)

CALM

34%

38°

4 PM

70°

70°

Clear

CALM

30%

37°

7 PM

67°

67°

Partly Cloudy

0%

0% Thunder
( 7% severe)

SSE 7

34%

38°

10 PM

58°

56°

Partly Cloudy

SSE 9

49%

39°

Friday
15 MAY 2026

1 AM

55°

52°

Partly Cloudy

31%
RAIN
>2 in

0% Thunder
( 16% severe)

SSE 10

57%

40°

Low 53°

4 AM

55°

51°

Mostly Cloudy

SSE 14

57%

40°

High 78°

7 AM

55°

51°

Mostly Cloudy

61%
RAIN
***

0% Thunder
( 17% severe)

S 16

64%

43°

Mostly Cloudy

Rain Likely

Breezy

10 AM

61°

58°

Mostly Cloudy

S 18

62%

48°

1 PM

69°

69°

Mostly Cloudy

5%

0% Thunder
( 19% severe)

S 21

55%

52°

4 PM

75°

75°

Partly Cloudy

S 18

50%

55°

7 PM

73°

73°

Partly Cloudy

S 15

55%

56°


DECATUR, IL extended weather forecast
Saturday 16 MAY 2026	Sunday 17 MAY 2026	Monday 18 MAY 2026	Tuesday 19 MAY 2026	Wednesday 20 MAY 2026
Low 64°	Low 63°	Low 66°	Low 64°	Low 58°
High 82°	High 83°	High 85°	High 74°	High 74°

Overcast 75% Rain	Partly Cloudy 50% Rain	Partly Cloudy 41% Rain	Overcast 54% Rain	Overcast 34% Rain

WEATHER 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