DECATUR, IL 62521 Weather Forecast & Current Conditions

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62521 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
DECATUR, IL Current Weather
9:54 AM CST DEC 27, 2025
Overcast Mist 43°F
Feels Like:	37°F
Dewpoint:	43°F
Rel. Hum.:	100%
Visibility:	1 1/4 miles
Wind:	ESE at 12 mph
Pressure:	30.01 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 2025 Hurricanes	DECATUR, IL 62521 Weather Forecast	Snowfall Forecast pages Snow Depth pages

REST OF TODAY
Mostly cloudy. Highs in the mid 50s. Southeast winds 10 to 15 mph.

TONIGHT
Cloudy. A slight chance of showers in the evening, then a chance of showers after midnight. Not as cool with lows in the lower 50s. Temperature rising to around 60 after midnight. South winds 10 to 15 mph. Chance of rain 40 percent.

SUNDAY
Showers, breezy and not as cool with highs in the upper 60s. Temperature falling into the upper 50s in the afternoon. South winds 10 to 15 mph, becoming southwest 15 to 25 mph in the afternoon. Chance of rain 90 percent.

SUNDAY NIGHT
Mostly cloudy. A chance of rain and snow showers in the evening. Little or no snow accumulation. Windy and much cooler. Less humid with lows around 15. West winds 20 to 30 mph with gusts up to 45 mph. Chance of precipitation 50 percent. Wind chill values as low as 2 below after midnight.

MONDAY
Mostly cloudy in the morning, then becoming partly sunny. Windy and much cooler with highs in the mid 20s. West winds 20 to 30 mph with gusts up to 45 mph. Wind chill values as low as 5 below.

MONDAY NIGHT
Partly cloudy in the evening, then becoming mostly clear. Lows 10 to 15. Wind chill values as low as zero.

TUESDAY AND TUESDAY NIGHT
Partly cloudy. Highs in the upper 20s. Lows in the lower 20s. Wind chill values as low as zero.

WEDNESDAY AND WEDNESDAY NIGHT
Mostly cloudy. Highs in the upper 30s. Lows 15 to 20.

NEW YEARS DAY
Partly sunny in the morning, then clearing. Cooler with highs in the mid 20s.

THURSDAY NIGHT AND FRIDAY
Mostly clear. Lows around 10 above. Highs in the mid 20s. Wind chill values as low as 5 below.

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 PM EST 12/26/2025

DAY/DATE &
WEATHER FORECAST SUMMARY

Saturday
27 DEC 2025

12 AM

43°

42°

Mostly Cloudy

0%

0% Thunder
( 0% severe)

NNE 1

93%

41°

Low 40°

3 AM

42°

40°

Mostly Cloudy

E 3

93%

40°

High 58°

6 AM

41°

36°

Mostly Cloudy

1%

0% Thunder
( 0% severe)

ESE 7

96%

40°

Mostly Cloudy

9 AM

45°

40°

Mostly Cloudy

ESE 10

89%

42°

12 PM

51°

47°

Mostly Cloudy

2%

0% Thunder
( 0% severe)

SE 12

77%

44°

3 PM

55°

52°

Mostly Cloudy

SE 13

72%

46°

6 PM

54°

50°

Mostly Cloudy

9%

0% Thunder
( 1% severe)

SE 13

83%

49°

9 PM

55°

52°

Mostly Cloudy

SSE 13

90%

52°

Sunday
28 DEC 2025

12 AM

57°

54°

Mostly Cloudy

35%
RAIN
.01–.1 in

0% Thunder
( 2% severe)

S 13

90%

54°

Low 53°

3 AM

59°

57°

Mostly Cloudy

S 12

90%

56°

High 67°

6 AM

60°

58°

Mostly Cloudy

70%
RAIN
***

0% Thunder
( 14% severe)

S 12

93%

58°

Mostly Cloudy

Rain Likely

9 AM

63°

62°

Mostly Cloudy

S 13

90%

60°

12 PM

65°

65°

Mostly Cloudy

89%
RAIN
***

0% Thunder
( 15% severe)

SSW 15

87%

61°

3 PM

63°

61°

Mostly Cloudy

SSW 18

81%

57°

6 PM

55°

50°

Mostly Cloudy

62%
RAIN
***

0% Thunder
( 9% severe)

WSW 18

90%

52°

9 PM

41°

31°

Mostly Cloudy

WNW 22

82%

36°


DECATUR, IL extended weather forecast
Monday 29 DEC 2025	Tuesday 30 DEC 2025	Wednesday 31 DEC 2025	Thursday 1 JAN 2026	Friday 2 JAN 2026
Low 18°	Low 13°	Low 20°	Low 18°	Low 7°
High 21°	High 27°	High 35°	High 21°	High 23°

Overcast 76% Snow	Partly Cloudy 2% Snow	Partly Cloudy 12% Snow	Mostly Cloudy 24% Snow	Clear

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