DECATUR, IL 62521 Weather Forecast & Current Conditions

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62521 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
DECATUR, IL Current Weather
7:54 PM CDT OCT 29, 2026
Clear 66°F
Feels Like:	66°F
Dewpoint:	57°F
Rel. Hum.:	73%
Visibility:	10 miles
Wind:	N at 12 mph
Pressure:	30.19 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 this evening, then becoming partly cloudy. Lows in the upper 40s. North winds 5 to 10 mph, becoming northeast after midnight.

FRIDAY
Partly sunny in the morning, then mostly cloudy with a slight chance of showers in the afternoon. Highs in the upper 60s. East winds 5 to 10 mph. Chance of rain 20 percent.

FRIDAY NIGHT
Mostly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the lower 50s. East winds 5 to 10 mph. Chance of rain 20 percent.

SATURDAY
Cloudy. A chance of showers in the morning. Highs in the upper 60s. East winds 5 to 10 mph. Chance of rain 50 percent.

SATURDAY NIGHT
Mostly cloudy. A chance of showers after midnight. Lows in the lower 50s. East winds 5 to 10 mph. Chance of rain 30 percent.

SUNDAY
Mostly cloudy in the morning, then becoming partly sunny. A 50 percent chance of showers. Highs in the upper 60s.

SUNDAY NIGHT
Mostly cloudy. Lows in the lower 50s.

MONDAY
Mostly cloudy with a 40 percent chance of showers. Highs in the upper 60s.

MONDAY NIGHT
Mostly cloudy with a 50 percent chance of showers. Breezy with lows in the upper 50s.

TUESDAY
Becoming mostly cloudy in the afternoon. Showers likely, mainly in the morning. Breezy with highs in the mid 70s. Chance of rain 60 percent.

TUESDAY NIGHT
Mostly cloudy. A chance of showers in the evening, then showers likely after midnight. Lows in the mid 50s. Chance of rain 60 percent.

WEDNESDAY
Showers likely. Highs around 70. Chance of rain 70 percent.

WEDNESDAY NIGHT
Mostly cloudy. A chance of showers in the evening. Lows in the upper 40s. 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 7:00 AM EST 10/29/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Thursday
29 OCT 2026

12 PM

76°

78°

Partly Cloudy

2%

0% Thunder
( 8% severe)

WSW 12

50%

56°

High 78°

3 PM

77°

79°

Partly Cloudy

W 10

52%

58°

Partly Cloudy

6 PM

66°

66°

Partly Cloudy

5%

0% Thunder
( 2% severe)

N 8

78%

59°

9 PM

59°

58°

Partly Cloudy

NNE 8

93%

57°

Friday
30 OCT 2026

12 AM

54°

52°

Partly Cloudy

1%

0% Thunder
( 1% severe)

NE 7

90%

51°

Low 48°

3 AM

51°

48°

Partly Cloudy

ENE 8

89%

48°

High 72°

6 AM

48°

44°

Partly Cloudy

3%

0% Thunder
( 1% severe)

ENE 9

89%

45°

Partly Cloudy

9 AM

59°

57°

Partly Cloudy

E 12

69%

49°

12 PM

68°

68°

Partly Cloudy

9%

0% Thunder
( 3% severe)

E 10

45%

46°

3 PM

71°

71°

Mostly Cloudy

E 10

41%

46°

6 PM

62°

61°

Mostly Cloudy

4%

0% Thunder
( 4% severe)

E 9

56%

46°

9 PM

58°

56°

Mostly Cloudy

E 9

62%

45°

Saturday
31 OCT 2026

12 AM

56°

54°

Mostly Cloudy

22%
RAIN
.25–.5 in

0% Thunder
( 13% severe)

E 9

64%

44°

Low 52°

3 AM

55°

52°

Mostly Cloudy

ESE 9

64%

43°

High 69°

6 AM

54°

52°

Mostly Cloudy

16%
RAIN
<.01 in

0% Thunder
( 10% severe)

ESE 8

66%

43°

Mostly Cloudy

9 AM

61°

60°

Mostly Cloudy

ESE 8

65%

49°

12 PM

66°

66°

Mostly Cloudy

6%

0% Thunder
( 4% severe)

E 8

52%

48°

3 PM

68°

68°

Mostly Cloudy

E 8

49%

48°

6 PM

61°

60°

Mostly Cloudy

E 8

65%

49°


DECATUR, IL extended weather forecast
Sunday 1 NOV 2026	Monday 2 NOV 2026	Tuesday 3 NOV 2026	Wednesday 4 NOV 2026	Thursday 5 NOV 2026
Low 49°	Low 53°	Low 56°	Low 55°	Low 44°
High 63°	High 67°	High 75°	High 61°	High 57°

Overcast 82% Rain	Overcast 65% Rain	Overcast 50% Rain	Overcast 72% Rain	Partly Cloudy 42% Rain

WEATHER SELECT BOX EXAMPLES:

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62521
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