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
11:54 AM CDT SEP 21, 2026
Overcast 63°F
Feels Like:	62°F
Dewpoint:	61°F
Rel. Hum.:	93%
Visibility:	10 miles
Wind:	ENE at 9 mph
Pressure:	30.07 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 2026 Hurricanes	DECATUR, IL 62521 Weather Forecast	Snowfall Forecast pages Snow Depth pages

THIS AFTERNOON
Mostly cloudy with a chance of sprinkles. Much cooler. Near steady temperature in the mid 60s. Northeast winds 10 to 15 mph.

TONIGHT
Mostly cloudy with a chance of sprinkles. Lows in the upper 50s. Northeast winds 10 to 15 mph.

TUESDAY
Mostly cloudy with a chance of sprinkles in the morning, then partly sunny in the afternoon. Highs in the upper 60s. Northeast winds 10 to 15 mph.

TUESDAY NIGHT
Partly cloudy. Lows in the lower 50s. Northeast winds 10 to 15 mph.

WEDNESDAY
Partly sunny. Highs around 70. Northeast winds 10 to 15 mph.

WEDNESDAY NIGHT THROUGH FRIDAY NIGHT
Partly cloudy. Lows in the lower 50s. Highs in the lower 70s.

SATURDAY AND SATURDAY NIGHT
Mostly cloudy. Highs in the lower 70s. Lows in the lower 50s.

SUNDAY
Mostly sunny. Highs in the upper 70s.

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 9/21/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

TIME
CDT

TEMP
(deg. F)

FEELS
LIKE

CLOUD
COVER

PRECIP
PROB.

THUNDER
PROB.

WIND
dir./mph

REL
HUM

DEWPT
(deg. F)

Monday
21 SEP 2026

1 PM

68°

Mostly Cloudy

0% Thunder
( 3% severe)

NE 13

76%

60°

High 69°

4 PM

68°

Mostly Cloudy

NE 14

73%

59°

Mostly Cloudy

7 PM

65°

Mostly Cloudy

0% Thunder
( 1% severe)

NE 13

78%

58°

10 PM

60°

58°

Mostly Cloudy

ENE 13

93%

58°

Tuesday
22 SEP 2026

1 AM

58°

56°

Mostly Cloudy

0% Thunder
( 5% severe)

NE 10

93%

56°

Low 55°

4 AM

58°

56°

Mostly Cloudy

NE 12

90%

55°

High 67°

7 AM

56°

53°

Mostly Cloudy

0% Thunder
( 3% severe)

NE 13

90%

53°

Mostly Cloudy

10 AM

61°

59°

Mostly Cloudy

NE 13

75%

53°

1 PM

65°

Mostly Cloudy

0% Thunder
( 2% severe)

NE 13

65%

53°

4 PM

66°

Mostly Cloudy

NE 15

61%

52°

7 PM

62°

60°

Mostly Cloudy

0% Thunder
( 2% severe)

NE 13

72%

53°

10 PM

57°

55°

Partly Cloudy

NE 10

90%

54°

Wednesday
23 SEP 2026

1 AM

56°

54°

Partly Cloudy

0% Thunder
( 2% severe)

NE 8

86%

52°

Low 53°

4 AM

55°

52°

Partly Cloudy

NNE 9

90%

52°

High 70°

7 AM

54°

51°

Partly Cloudy

0% Thunder
( 1% severe)

NNE 10

90%

51°

Mostly Cloudy

10 AM

63°

62°

Partly Cloudy

NNE 12

70%

53°

1 PM

68°

Mostly Cloudy

0% Thunder
( 2% severe)

NNE 13

61%

54°

4 PM

69°

Mostly Cloudy

NNE 14

59%

54°

7 PM

64°

63°

Mostly Cloudy

NE 12

73%

55°


DECATUR, IL extended weather forecast
Thursday 24 SEP 2026	Friday 25 SEP 2026	Saturday 26 SEP 2026	Sunday 27 SEP 2026	Monday 28 SEP 2026
Low 53°	Low 56°	Low 51°	Low 54°	Low 51°
High 76°	High 74°	High 68°	High 78°	High 80°

Partly Cloudy 7% Rain	Overcast 20% Rain	Overcast 40% Rain	Mostly Cloudy 29% Rain	Partly Cloudy 24% Rain