DECATUR, IL 62521 Weather Forecast & Current Conditions

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62521 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
DECATUR, IL Current Weather
6:54 AM CDT JUL 24, 2026
Clear 61°F
Feels Like:	61°F
Dewpoint:	55°F
Rel. Hum.:	81%
Visibility:	10 miles
Wind:	Calm
Pressure:	30.16 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 2026 Hurricanes	DECATUR, IL 62521 Weather Forecast	Snowfall Forecast pages Snow Depth pages

TODAY
Partly sunny. Highs in the upper 70s. East winds around 5 mph, becoming south this afternoon.

TONIGHT
Mostly cloudy. A slight chance of showers in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Lows in the mid 60s. South winds around 5 mph. Chance of rain 40 percent.

SATURDAY
Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the morning, then partly sunny in the afternoon. Highs in the lower 80s. South winds 5 to 10 mph. Chance of rain 30 percent.

SATURDAY NIGHT
Partly cloudy. Humid with lows in the upper 60s. South winds around 5 mph.

SUNDAY
Mostly sunny. Humid with highs in the upper 80s. Southwest winds 5 to 10 mph. Heat index values up to 102 in the afternoon.

SUNDAY NIGHT AND MONDAY
Partly cloudy. Lows in the lower 70s. Highs in the lower 90s.

MONDAY NIGHT AND TUESDAY
Mostly clear. Lows in the mid 70s. Highs in the lower 90s.

TUESDAY NIGHT THROUGH THURSDAY
Mostly clear. Lows in the upper 60s. Highs in the upper 80s.

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 PM EDT 7/23/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Friday
24 JUL 2026

1 AM

62°

63°

Mostly Cloudy

1%

0% Thunder
( 2% severe)

E 2

75%

54°

Low 59°

4 AM

60°

61°

Mostly Cloudy

ENE 3

81%

54°

High 77°

7 AM

63°

64°

Partly Cloudy

2%

0% Thunder
( 1% severe)

ENE 3

78%

56°

Partly Cloudy

10 AM

71°

71°

Partly Cloudy

SE 3

61%

57°

1 PM

74°

74°

Partly Cloudy

6%

0% Thunder
( 4% severe)

SSE 5

55%

57°

4 PM

75°

75°

Mostly Cloudy

SSE 5

55%

58°

7 PM

73°

73°

Mostly Cloudy

14%
RAIN
.25–.5 in

0% Thunder
( 6% severe)

S 6

59%

58°

10 PM

68°

68°

Mostly Cloudy

S 3

76%

60°

Saturday
25 JUL 2026

1 AM

66°

66°

Mostly Cloudy

14%
RAIN
1–2 in

0% Thunder
( 12% severe)

S 5

84%

61°

Low 63°

4 AM

65°

65°

Mostly Cloudy

S 5

90%

62°

High 82°

7 AM

67°

67°

Mostly Cloudy

18%
RAIN
.1–.25 in

0% Thunder
( 12% severe)

SSE 7

90%

64°

Mostly Cloudy

10 AM

72°

72°

Mostly Cloudy

S 8

81%

66°

1 PM

78°

80°

Mostly Cloudy

0%

0% Thunder
( 12% severe)

SSW 8

74%

69°

4 PM

81°

85°

Mostly Cloudy

SSW 7

72%

71°

7 PM

81°

85°

Partly Cloudy

1%

0% Thunder
( 7% severe)

SSW 6

72%

71°

10 PM

74°

74°

Partly Cloudy

S 2

93%

72°


DECATUR, IL extended weather forecast
Sunday 26 JUL 2026	Monday 27 JUL 2026	Tuesday 28 JUL 2026	Wednesday 29 JUL 2026	Thursday 30 JUL 2026
Low 70°	Low 74°	Low 73°	Low 71°	Low 66°
High 92°	High 93°	High 90°	High 89°	High 89°

Partly Cloudy 45% Rain	Partly Cloudy 19% Rain	Partly Cloudy 17% Rain	Partly Cloudy 18% Rain	Clear 14% Rain

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