DECATUR, IL 62521 Weather Forecast & Current Conditions

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62521 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
DECATUR, IL Current Weather
5:54 PM CST JAN 9, 2026
Overcast 46°F
Feels Like:	43°F
Dewpoint:	37°F
Rel. Hum.:	71%
Visibility:	10 miles
Wind:	SE at 5 mph
Pressure:	30.17 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
Mostly cloudy. A chance of rain after midnight. Lows in the mid 30s. East winds around 5 mph. Chance of rain 50 percent.

SATURDAY
Cloudy with rain likely in the morning, then mostly sunny with a slight chance of rain and snow showers in the afternoon. Highs in the lower 40s. West winds 15 to 20 mph with gusts up to 30 mph. Chance of precipitation 70 percent.

SATURDAY NIGHT
Partly cloudy and brisk, cooler with lows in the lower 20s. West winds 15 to 25 mph.

SUNDAY
Mostly sunny and brisk. Highs in the mid 30s. Northwest winds 15 to 25 mph, diminishing to 10 to 15 mph in the afternoon.

SUNDAY NIGHT
Mostly clear. Lows in the mid 20s. Southwest winds 10 to 15 mph.

MONDAY
Sunny. Not as cool with highs in the mid 40s.

MONDAY NIGHT
Mostly clear in the evening, then becoming mostly cloudy. Lows in the lower 30s.

TUESDAY AND TUESDAY NIGHT
Mostly cloudy. Highs around 50. Lows in the lower 30s.

WEDNESDAY
Mostly cloudy. A chance of rain and snow in the afternoon. Cooler with highs in the upper 30s. Chance of precipitation 30 percent.

WEDNESDAY NIGHT THROUGH THURSDAY NIGHT
Mostly cloudy. Lows around 20. Highs in the lower 30s.

FRIDAY
Mostly cloudy. Highs in the upper 30s.

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 1/ 9/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Friday
9 JAN 2026

12 PM

46°

40°

Mostly Cloudy

0%

0% Thunder
( 0% severe)

NW 13

76%

39°

High 48°

3 PM

47°

43°

Mostly Cloudy

NNW 8

71%

38°

Mostly Cloudy

6 PM

44°

42°

Mostly Cloudy

1%

0% Thunder
( 0% severe)

NNE 3

82%

39°

9 PM

42°

40°

Mostly Cloudy

E 3

86%

38°

Saturday
10 JAN 2026

12 AM

41°

39°

Mostly Cloudy

25%
RAIN
<.01 in

0% Thunder
( 1% severe)

E 3

89%

38°

Low 35°

3 AM

40°

38°

Mostly Cloudy

ESE 3

92%

38°

High 43°

6 AM

39°

35°

Mostly Cloudy

35%
RAIN
1–2 in

0% Thunder
( 1% severe)

W 6

92%

37°

Mostly Cloudy

Chance of Rain

9 AM

38°

30°

Mostly Cloudy

WNW 13

89%

35°

12 PM

40°

31°

Mostly Cloudy

7%

0% Thunder
( 0% severe)

WNW 17

70%

31°

3 PM

40°

31°

Partly Cloudy

W 17

56%

26°

6 PM

35°

26°

Mostly Cloudy

7%

0% Thunder
( 0% severe)

WNW 14

66%

25°

9 PM

31°

20°

Partly Cloudy

WNW 16

64%

21°

Sunday
11 JAN 2026

12 AM

29°

17°

Partly Cloudy

3%

0% Thunder
( 0% severe)

WNW 16

64%

19°

Low 22°

3 AM

26°

13°

Partly Cloudy

WNW 18

66%

17°

High 34°

6 AM

24°

10°

Partly Cloudy

1%

0% Thunder
( 0% severe)

WNW 18

65%

15°

Partly Cloudy

9 AM

25°

12°

Partly Cloudy

WNW 17

65%

16°

12 PM

30°

19°

Partly Cloudy

1%

0% Thunder
( 0% severe)

NW 15

58%

18°

3 PM

32°

22°

Partly Cloudy

WNW 13

53%

18°

6 PM

28°

20°

Clear

W 8

66%

19°


DECATUR, IL extended weather forecast
Monday 12 JAN 2026	Tuesday 13 JAN 2026	Wednesday 14 JAN 2026	Thursday 15 JAN 2026	Friday 16 JAN 2026
Low 21°	Low 28°	Low 25°	Low 15°	Low 19°
High 44°	High 48°	High 27°	High 28°	High 31°

Clear 6% Rain/Snow	Partly Cloudy 10% Rain	Overcast 32% Rain/Snow	Partly Cloudy 13% Snow	Overcast 24% Rain/Snow

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