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
8:54 PM CDT JUN 26, 2026
Overcast 70°F
Feels Like:	70°F
Dewpoint:	68°F
Rel. Hum.:	93%
Visibility:	10 miles
Wind:	ENE at 12 mph
Pressure:	29.95 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
Cloudy. Showers likely with a chance of thunderstorms this evening, then a chance of showers after midnight. Some thunderstorms may produce heavy rainfall this evening. Lows in the lower 60s. East winds 5 to 10 mph. Chance of rain 70 percent.

SATURDAY
Mostly cloudy in the morning, then partly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. East winds around 5 mph. Chance of rain 20 percent.

SATURDAY NIGHT
Partly cloudy in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the upper 60s. East winds around 5 mph. Chance of rain 40 percent.

SUNDAY
Partly sunny. Warmer with highs in the upper 80s. South winds 10 to 15 mph. Heat index values up to 100 in the afternoon.

SUNDAY NIGHT
Mostly clear. Humid with lows in the lower 70s. South winds 10 to 15 mph.

MONDAY THROUGH TUESDAY
Mostly clear. Highs in the lower 90s. Lows in the mid 70s.

TUESDAY NIGHT
Clear. Lows in the mid 70s.

WEDNESDAY
Sunny. Highs in the lower 90s. Heat index values up to 100.

WEDNESDAY NIGHT
Clear. Lows in the mid 70s.

THURSDAY AND THURSDAY NIGHT
Mostly clear. Highs in the mid 90s. Lows in the lower 70s.

FRIDAY
Sunny with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 40 percent. Heat index values up to 100.

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 6/26/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Friday
26 JUN 2026

1 PM

69°

69°

Mostly Cloudy

90%
RAIN
***

0% Thunder
( 31% severe)

E 12

90%

66°

High 72°

4 PM

71°

71°

Mostly Cloudy

E 13

84%

66°

Mostly Cloudy

Rain Likely

7 PM

71°

71°

Mostly Cloudy

39%
RAIN
.5–1 in

0% Thunder
( 26% severe)

E 13

79%

64°

10 PM

68°

68°

Mostly Cloudy

E 10

90%

65°

Saturday
27 JUN 2026

1 AM

66°

66°

Mostly Cloudy

12%
RAIN
<.01 in

0% Thunder
( 7% severe)

ENE 8

93%

64°

Low 62°

4 AM

65°

65°

Mostly Cloudy

NE 7

93%

63°

High 80°

7 AM

66°

66°

Mostly Cloudy

5%

0% Thunder
( 8% severe)

NE 7

93%

64°

Mostly Cloudy

10 AM

71°

71°

Mostly Cloudy

NE 6

81%

65°

1 PM

75°

75°

Mostly Cloudy

6%

0% Thunder
( 19% severe)

ENE 5

76%

67°

4 PM

79°

81°

Partly Cloudy

ENE 5

67%

67°

7 PM

79°

81°

Partly Cloudy

7%

0% Thunder
( 25% severe)

ENE 6

67%

67°

10 PM

71°

71°

Mostly Cloudy

E 6

87%

67°

Sunday
28 JUN 2026

1 AM

69°

69°

Mostly Cloudy

42%
RAIN
***

0% Thunder
( 46% severe)

E 7

90%

66°

Low 67°

4 AM

68°

68°

Mostly Cloudy

ESE 7

97%

67°

High 89°

7 AM

71°

71°

Mostly Cloudy

13%
RAIN
.01–.1 in

0% Thunder
( 28% severe)

SE 9

93%

69°

Mostly Cloudy

10 AM

79°

82°

Mostly Cloudy

SSE 12

77%

71°

1 PM

85°

92°

Partly Cloudy

0%

0% Thunder
( 17% severe)

S 13

67%

73°

4 PM

89°

98°

Partly Cloudy

S 14

61%

74°

7 PM

88°

97°

Clear

SSE 13

63%

74°


DECATUR, IL extended weather forecast
Monday 29 JUN 2026	Tuesday 30 JUN 2026	Wednesday 1 JUL 2026	Thursday 2 JUL 2026	Friday 3 JUL 2026
Low 72°	Low 74°	Low 72°	Low 73°	Low 72°
High 95°	High 95°	High 96°	High 94°	High 89°

Clear 13% Rain	Clear 18% Rain	Partly Cloudy 23% Rain	Partly Cloudy 38% Rain	Partly Cloudy 35% 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