DECATUR, IL 62521 Weather Forecast & Current Conditions

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62521 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
DECATUR, IL Current Weather
4:54 AM CDT MAR 26, 2026
Clear 64°F
Feels Like:	64°F
Dewpoint:	55°F
Rel. Hum.:	73%
Visibility:	10 miles
Wind:	S at 9 mph
Pressure:	29.80 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

TODAY
Mostly sunny. A slight chance of showers and thunderstorms this afternoon. Warmer with highs in the upper 80s. Southwest winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 20 percent.

TONIGHT
Rain showers and thunderstorms in the evening, then rain showers with a slight chance of thunderstorms after midnight. Breezy and much cooler. Less humid with lows in the upper 30s. Northwest winds 15 to 20 mph, becoming northeast 20 to 25 mph after midnight. Chance of rain near 100 percent.

FRIDAY
Mostly cloudy with a chance of rain showers in the morning, then mostly sunny in the afternoon. Much cooler with highs in the upper 40s. North winds around 20 mph with gusts up to 30 mph. Chance of rain 40 percent.

FRIDAY NIGHT
Mostly clear. Lows in the upper 20s. North winds 10 to 15 mph.

SATURDAY
Sunny. Highs in the lower 50s. Northeast winds 5 to 10 mph, becoming south in the afternoon.

SATURDAY NIGHT
Partly cloudy. Not as cool with lows in the upper 30s.

SUNDAY AND SUNDAY NIGHT
Mostly cloudy. Highs in the lower 60s. Lows in the lower 50s.

MONDAY
Mostly sunny. Not as cool with highs in the upper 70s.

MONDAY NIGHT
Mostly cloudy with a chance of rain. Lows in the upper 50s. Chance of rain 50 percent.

TUESDAY
Mostly cloudy in the morning, then becoming partly sunny. A chance of rain. A chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 50 percent.

TUESDAY NIGHT AND WEDNESDAY
Mostly cloudy with a chance of rain. Breezy. Lows around 60. Highs in the mid 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 7:00 PM EST 3/25/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Thursday
26 MAR 2026

12 AM

63°

61°

Mostly Cloudy

28%
RAIN
.01–.1 in

0% Thunder
( 27% severe)

SSW 14

72%

54°

Low 59°

3 AM

61°

59°

Partly Cloudy

SSW 13

81%

55°

High 86°

6 AM

60°

58°

Partly Cloudy

3%

0% Thunder
( 6% severe)

SSW 12

87%

56°

Partly Cloudy

Chance of Rain

9 AM

71°

71°

Partly Cloudy

SW 15

68%

60°

12 PM

82°

83°

Partly Cloudy

45%
RAIN
>2 in

0% Thunder
( 44% severe)

SW 18

49%

61°

3 PM

86°

85°

Partly Cloudy

SW 18

40%

59°

6 PM

77°

79°

Mostly Cloudy

95%
RAIN
***

0% Thunder
( 61% severe)

SW 14

52%

58°

9 PM

59°

56°

Mostly Cloudy

NNE 18

75%

51°

Friday
27 MAR 2026

12 AM

48°

41°

Mostly Cloudy

84%
RAIN
***

0% Thunder
( 16% severe)

NNE 20

83%

43°

Low 36°

3 AM

42°

33°

Mostly Cloudy

NNE 20

82%

37°

High 49°

6 AM

37°

27°

Mostly Cloudy

7%

0% Thunder
( 1% severe)

N 18

82%

32°

Mostly Cloudy

Breezy

9 AM

39°

30°

Mostly Cloudy

N 18

73%

31°

12 PM

45°

37°

Partly Cloudy

1%

0% Thunder
( 0% severe)

N 18

58%

31°

3 PM

47°

40°

Partly Cloudy

NNW 18

47%

28°

6 PM

44°

37°

Partly Cloudy

0%

0% Thunder
( 0% severe)

NNW 14

51%

27°

9 PM

39°

32°

Clear

NNW 10

59%

26°


DECATUR, IL extended weather forecast
Saturday 28 MAR 2026	Sunday 29 MAR 2026	Monday 30 MAR 2026	Tuesday 31 MAR 2026	Wednesday 1 APR 2026
Low 28°	Low 36°	Low 53°	Low 58°	Low 54°
High 52°	High 61°	High 74°	High 77°	High 65°

Clear 1% Rain/Snow	Partly Cloudy 6% Rain	Partly Cloudy 28% Rain	Overcast 33% Rain	Overcast 57% Rain

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