DECATUR, IL 62521 Weather Forecast & Current Conditions

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62521 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
DECATUR, IL Current Weather
1:54 AM CDT MAR 25, 2026
Scattered Clouds 39°F
Feels Like:	35°F
Dewpoint:	30°F
Rel. Hum.:	70%
Visibility:	10 miles
Wind:	ESE at 6 mph
Pressure:	30.17 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 TONIGHT
Mostly cloudy. Not as cool with lows around 40. Southeast winds 5 to 10 mph.

WEDNESDAY
Partly sunny. Not as cool with highs in the mid 70s. South winds 10 to 15 mph.

WEDNESDAY NIGHT
Mostly cloudy in the evening, then becoming partly cloudy. A chance of showers and thunderstorms. Not as cool with lows in the upper 50s. South winds 10 to 15 mph. Chance of rain 50 percent.

THURSDAY
Mostly sunny. A chance of showers and thunderstorms in the afternoon. Warmer with highs in the upper 80s. Southwest winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 40 percent.

THURSDAY NIGHT
Showers with thunderstorms likely in the evening, then showers likely after midnight. Much cooler with lows in the upper 30s. Northwest winds 15 to 20 mph, becoming northeast after midnight. Chance of rain near 100 percent.

FRIDAY
Mostly cloudy in the morning, then becoming mostly sunny. Much cooler with highs in the upper 40s.

FRIDAY NIGHT AND SATURDAY
Mostly clear. Lows in the upper 20s. Highs in the mid 50s.

SATURDAY NIGHT
Partly cloudy. Lows in the upper 30s.

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

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

MONDAY NIGHT AND TUESDAY
Mostly cloudy. A chance of rain. Lows in the upper 50s. Highs in the upper 70s. Chance of rain 40 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 3/24/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
25 MAR 2026

12 AM

44°

39°

Partly Cloudy

1%

0% Thunder
( 1% severe)

SSE 8

60%

31°

Low 38°

3 AM

40°

35°

Partly Cloudy

SE 8

70%

31°

High 71°

6 AM

39°

33°

Partly Cloudy

3%

0% Thunder
( 1% severe)

SSE 8

76%

32°

Partly Cloudy

9 AM

54°

51°

Partly Cloudy

S 12

50%

36°

12 PM

67°

67°

Partly Cloudy

5%

0% Thunder
( 4% severe)

SSW 14

36%

39°

3 PM

71°

71°

Mostly Cloudy

SSW 15

38%

44°

6 PM

67°

67°

Mostly Cloudy

38%
RAIN
<.01 in

0% Thunder
( 34% severe)

S 13

52%

49°

9 PM

63°

62°

Mostly Cloudy

S 13

65%

51°

Thursday
26 MAR 2026

12 AM

62°

60°

Partly Cloudy

32%
RAIN
.01–.1 in

0% Thunder
( 27% severe)

SSW 13

72%

53°

Low 58°

3 AM

61°

59°

Partly Cloudy

SSW 13

78%

54°

High 85°

6 AM

60°

58°

Partly Cloudy

3%

0% Thunder
( 7% severe)

SW 13

87%

56°

Partly Cloudy

Chance of Rain

Breezy

9 AM

72°

72°

Partly Cloudy

SW 16

64%

59°

12 PM

82°

82°

Partly Cloudy

45%
RAIN
.25–.5 in

0% Thunder
( 37% severe)

SW 18

46%

59°

3 PM

84°

83°

Partly Cloudy

SW 18

41%

58°

6 PM

74°

74°

Mostly Cloudy

86%
RAIN
***

0% Thunder
( 54% severe)

NW 15

57%

58°

9 PM

59°

56°

Mostly Cloudy

NNE 18

75%

51°


DECATUR, IL extended weather forecast
Friday 27 MAR 2026	Saturday 28 MAR 2026	Sunday 29 MAR 2026	Monday 30 MAR 2026	Tuesday 31 MAR 2026
Low 39°	Low 30°	Low 33°	Low 48°	Low 55°
High 48°	High 52°	High 59°	High 73°	High 76°

Mostly Cloudy 97% Rain/Snow	Clear 2% Rain/Snow	Partly Cloudy 5% Rain	Overcast 48% Rain	Overcast 36% Rain

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