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
7:54 AM CDT JUL 27, 2026
Clear 75°F
Feels Like:	75°F
Dewpoint:	70°F
Rel. Hum.:	84%
Visibility:	10 miles
Wind:	SW at 15 mph
Pressure:	29.92 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 2026 Hurricanes	DECATUR, IL 62521 Weather Forecast	Snowfall Forecast pages Snow Depth pages

REST OF TODAY
Mostly sunny. A chance of showers and thunderstorms this afternoon. Highs in the mid 90s. Southwest winds 10 to 15 mph. Chance of rain 30 percent. Heat index values up to 114 this afternoon.

TONIGHT
Partly cloudy. A chance of showers and thunderstorms in the evening. Humid with lows in the mid 70s. Southwest winds 10 to 15 mph, becoming northwest 5 to 10 mph after midnight. Chance of rain 30 percent.

TUESDAY
Mostly sunny. Humid with highs in the mid 80s. North winds 10 to 15 mph.

TUESDAY NIGHT
Partly cloudy in the evening, then becoming mostly clear. Cooler with lows in the lower 60s. Northeast winds 5 to 10 mph.

WEDNESDAY
Sunny. Highs in the mid 80s. Northeast winds 5 to 10 mph.

WEDNESDAY NIGHT
Clear. Lows in the lower 60s.

THURSDAY
Sunny. Highs in the mid 80s.

THURSDAY NIGHT
Partly cloudy. Lows in the mid 60s.

FRIDAY
Partly sunny in the morning, then becoming mostly cloudy. A 40 percent chance of showers. Highs in the lower 80s.

FRIDAY NIGHT
Mostly cloudy with a chance of showers. Lows in the mid 60s. Chance of rain 40 percent.

SATURDAY
Mostly sunny. A chance of showers in the afternoon. Highs in the lower 80s. Chance of rain 40 percent.

SATURDAY NIGHT
Partly cloudy. Lows in the mid 60s.

SUNDAY
Sunny. Highs in the lower 80s.

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 PM EDT 7/26/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Monday
27 JUL 2026

1 AM

76°

75°

Mostly Cloudy

17%
RAIN
.1–.25 in

0% Thunder
( 35% severe)

S 5

97%

75°

Low 74°

4 AM

75°

75°

Mostly Cloudy

SSE 6

100%

75°

High 93°

7 AM

76°

75°

Partly Cloudy

6%

0% Thunder
( 17% severe)

S 7

97%

75°

Partly Cloudy

10 AM

85°

96°

Partly Cloudy

SSW 9

77%

77°

1 PM

91°

106°

Partly Cloudy

11%
RAIN
<.01 in

0% Thunder
( 27% severe)

SSW 12

66%

78°

4 PM

92°

106°

Partly Cloudy

SSW 14

62%

77°

7 PM

88°

101°

Partly Cloudy

9%

0% Thunder
( 18% severe)

SSW 13

72%

78°

10 PM

81°

87°

Clear

SW 12

85%

76°

Tuesday
28 JUL 2026

1 AM

79°

83°

Partly Cloudy

14%
RAIN
<.01 in

0% Thunder
( 10% severe)

W 9

85%

74°

Low 75°

4 AM

77°

78°

Partly Cloudy

NNW 10

90%

74°

High 86°

7 AM

75°

75°

Mostly Cloudy

0%

0% Thunder
( 9% severe)

N 12

94%

73°

Partly Cloudy

10 AM

81°

85°

Partly Cloudy

NA 13

74%

72°

1 PM

84°

89°

Partly Cloudy

1%

0% Thunder
( 8% severe)

N 13

65%

71°

4 PM

85°

89°

Partly Cloudy

NA 14

59%

69°

7 PM

82°

85°

Partly Cloudy

2%

0% Thunder
( 5% severe)

N 12

63%

68°

10 PM

73°

73°

Partly Cloudy

NNE 8

79%

66°


DECATUR, IL extended weather forecast
Wednesday 29 JUL 2026	Thursday 30 JUL 2026	Friday 31 JUL 2026	Saturday 1 AUG 2026	Sunday 2 AUG 2026
Low 64°	Low 63°	Low 68°	Low 66°	Low 65°
High 87°	High 88°	High 76°	High 80°	High 85°

Clear 1% Rain	Clear 5% Rain	Overcast 59% Rain	Overcast 65% Rain	Partly Cloudy 26% Rain

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 © 2026 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