DECATUR, IL 62521 Weather Forecast & Current Conditions

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62521 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
DECATUR, IL Current Weather
3:54 PM CDT APR 15, 2026
Few Clouds 73°F
Feels Like:	73°F
Dewpoint:	59°F
Rel. Hum.:	62%
Visibility:	10 miles
Wind:	SSW at 22 mph, gusts to 33
Pressure:	29.86 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
A chance of thunderstorms. Showers. Lows in the lower 60s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 80 percent.

THURSDAY
Partly sunny with a slight chance of showers in the morning, then sunny in the afternoon. Highs in the upper 70s. West winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20 percent.

THURSDAY NIGHT
Mostly clear. Lows in the mid 50s. Southwest winds 5 to 10 mph, becoming southeast after midnight.

FRIDAY
Mostly sunny. A chance of showers in the afternoon. Highs in the mid 80s. South winds 15 to 20 mph. Chance of rain 30 percent.

FRIDAY NIGHT
A chance of thunderstorms. Showers. Lows in the upper 40s. South winds 15 to 20 mph. Chance of rain 90 percent.

SATURDAY
Mostly cloudy in the morning, then becoming mostly sunny. A 50 percent chance of showers. Much cooler with highs in the lower 60s.

SATURDAY NIGHT THROUGH SUNDAY NIGHT
Mostly clear. Lows in the upper 30s. Highs in the upper 50s.

MONDAY AND MONDAY NIGHT
Mostly clear. Highs in the upper 60s. Lows around 50.

TUESDAY
Mostly sunny. Highs in the mid 70s.

TUESDAY NIGHT
Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 50s.

WEDNESDAY
Mostly sunny. Highs in the mid 70s.

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 8:00 AM EDT 4/15/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
15 APR 2026

1 PM

75°

75°

Mostly Cloudy

79%
RAIN
***

0% Thunder
( 40% severe)

SSW 17

66%

63°

High 78°

4 PM

77°

79°

Mostly Cloudy

SSW 16

60%

62°

Mostly Cloudy

Rain Likely

7 PM

72°

72°

Mostly Cloudy

75%
RAIN
***

0% Thunder
( 39% severe)

S 14

68%

61°

10 PM

69°

69°

Mostly Cloudy

SSW 14

76%

61°

Thursday
16 APR 2026

1 AM

67°

67°

Mostly Cloudy

69%
RAIN
***

0% Thunder
( 27% severe)

SSW 13

81%

61°

Low 62°

4 AM

64°

63°

Mostly Cloudy

SSW 13

84%

59°

High 79°

7 AM

62°

61°

Mostly Cloudy

16%
RAIN
.01–.1 in

0% Thunder
( 7% severe)

SW 12

87%

58°

Decreasing Clouds

10 AM

69°

69°

Partly Cloudy

WSW 14

70%

59°

1 PM

75°

75°

Partly Cloudy

17%
RAIN
<.01 in

0% Thunder
( 7% severe)

WSW 16

48%

54°

4 PM

77°

78°

Clear

W 14

40%

51°

7 PM

72°

72°

Clear

6%

0% Thunder
( 4% severe)

W 8

49%

52°

10 PM

64°

65°

Clear

SSW 5

65%

52°

Friday
17 APR 2026

1 AM

59°

59°

Clear

1%

0% Thunder
( 1% severe)

SE 5

78%

52°

Low 55°

4 AM

57°

56°

Partly Cloudy

SE 6

80%

51°

High 84°

7 AM

57°

55°

Partly Cloudy

2%

0% Thunder
( 3% severe)

SE 8

86%

53°

Partly Cloudy

Chance of Rain

10 AM

71°

71°

Partly Cloudy

SSE 12

63%

58°

1 PM

80°

81°

Partly Cloudy

26%
RAIN
<.01 in

0% Thunder
( 19% severe)

S 16

49%

59°

4 PM

82°

82°

Partly Cloudy

S 18

43%

57°

7 PM

76°

78°

Mostly Cloudy

S 16

54%

58°


DECATUR, IL extended weather forecast
Saturday 18 APR 2026	Sunday 19 APR 2026	Monday 20 APR 2026	Tuesday 21 APR 2026	Wednesday 22 APR 2026
Low 51°	Low 35°	Low 33°	Low 48°	Low 50°
High 56°	High 53°	High 61°	High 68°	High 67°

Overcast 69% Rain	Partly Cloudy 16% Rain	Clear 3% Rain	Mostly Cloudy 18% Rain	Partly Cloudy 24% Rain

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