DECATUR, IL 62521 Weather Forecast & Current Conditions

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62521 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
DECATUR, IL Current Weather
8:54 PM CDT SEP 10, 2026
Scattered Clouds 72°F
Feels Like:	72°F
Dewpoint:	68°F
Rel. Hum.:	87%
Visibility:	10 miles
Wind:	ESE at 5 mph
Pressure:	30.01 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

TONIGHT
Mostly cloudy. A slight chance of showers and thunderstorms this evening. Patchy fog after midnight. Lows in the lower 60s. Northeast winds around 5 mph. Chance of rain 20 percent.

FRIDAY
Patchy fog in the morning. Partly sunny. Highs in the lower 80s. East winds 5 to 10 mph.

FRIDAY NIGHT
Mostly cloudy. Lows in the mid 60s. South winds around 5 mph.

SATURDAY
Mostly sunny. Humid with highs in the upper 80s. Southwest winds 5 to 10 mph.

SATURDAY NIGHT
Mostly clear. Lows in the mid 60s. Southwest winds around 5 mph.

SUNDAY THROUGH MONDAY
Partly cloudy. Highs in the mid 80s. Lows in the lower 60s.

MONDAY NIGHT
Mostly clear. Lows in the upper 60s.

TUESDAY
Sunny. A chance of showers in the afternoon. Highs in the upper 80s. Chance of rain 30 percent.

TUESDAY NIGHT
Partly cloudy with a chance of showers. Lows in the mid 60s. Chance of rain 50 percent.

WEDNESDAY
Showers likely, mainly in the morning. Highs in the lower 80s. Chance of rain 60 percent.

WEDNESDAY NIGHT
Mostly cloudy with a 50 percent chance of showers. Lows in the mid 60s.

THURSDAY
Partly sunny with a chance of showers. Highs in the upper 70s. Chance of rain 50 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 9/10/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Thursday
10 SEP 2026

1 PM

72°

72°

Mostly Cloudy

47%
RAIN
***

0% Thunder
( 18% severe)

SW 5

90%

69°

High 75°

4 PM

74°

74°

Mostly Cloudy

NNW 6

82%

68°

Mostly Cloudy

Chance of Rain

7 PM

72°

72°

Mostly Cloudy

3%

0% Thunder
( 2% severe)

N 6

87%

68°

10 PM

67°

67°

Mostly Cloudy

ENE 5

100%

67°

Friday
11 SEP 2026

1 AM

65°

65°

Mostly Cloudy

0%

0% Thunder
( 0% severe)

NE 5

100%

65°

Low 61°

4 AM

63°

63°

Mostly Cloudy

ENE 6

100%

63°

High 81°

7 AM

61°

61°

Mostly Cloudy

1%

0% Thunder
( 1% severe)

ENE 6

100%

61°

Mostly Cloudy

10 AM

72°

72°

Partly Cloudy

ESE 8

76%

64°

1 PM

78°

80°

Mostly Cloudy

12%
RAIN
<.01 in

0% Thunder
( 5% severe)

ESE 8

64%

65°

4 PM

79°

81°

Mostly Cloudy

SE 7

60%

64°

7 PM

75°

75°

Mostly Cloudy

4%

0% Thunder
( 8% severe)

ESE 7

76%

67°

10 PM

68°

68°

Mostly Cloudy

SE 6

97%

67°

Saturday
12 SEP 2026

1 AM

66°

66°

Partly Cloudy

4%

0% Thunder
( 7% severe)

S 5

100%

66°

Low 64°

4 AM

66°

66°

Mostly Cloudy

S 3

100%

66°

High 87°

7 AM

67°

67°

Mostly Cloudy

8%

0% Thunder
( 10% severe)

SSW 5

100%

67°

Mostly Cloudy

10 AM

77°

79°

Mostly Cloudy

SW 7

79%

70°

1 PM

83°

86°

Partly Cloudy

4%

0% Thunder
( 13% severe)

WSW 9

61%

68°

4 PM

85°

88°

Partly Cloudy

W 9

57%

68°

7 PM

80°

83°

Partly Cloudy

WSW 6

69%

69°


DECATUR, IL extended weather forecast
Sunday 13 SEP 2026	Monday 14 SEP 2026	Tuesday 15 SEP 2026	Wednesday 16 SEP 2026	Thursday 17 SEP 2026
Low 64°	Low 66°	Low 68°	Low 68°	Low 60°
High 86°	High 92°	High 92°	High 87°	High 78°

Partly Cloudy 23% Rain	Mostly Cloudy 25% Rain	Partly Cloudy 27% Rain	Overcast 49% Rain	Overcast 40% Rain

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