DECATUR, IL 62521 Weather Forecast & Current Conditions

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62521 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
DECATUR, IL Current Weather
2:54 PM CDT JUN 8, 2026
Scattered Clouds Light Rain 72°F
Feels Like:	72°F
Dewpoint:	70°F
Rel. Hum.:	93%
Visibility:	10 miles
Wind:	SSE at 8 mph
Pressure:	29.96 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

THIS AFTERNOON
Showers with thunderstorms likely. Some thunderstorms may produce heavy rainfall. Near steady temperature in the lower 70s. South winds around 15 mph with gusts up to 25 mph. Chance of rain 80 percent.

TONIGHT
Showers and thunderstorms likely, mainly in the evening. Some thunderstorms may produce heavy rainfall. Lows in the upper 60s. South winds 10 to 15 mph. Chance of rain 70 percent.

TUESDAY
Partly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Humid with highs in the upper 80s. Southwest winds 5 to 10 mph. Chance of rain 20 percent.

TUESDAY NIGHT
Partly cloudy. A chance of showers and thunderstorms in the evening. Humid with lows in the lower 70s. Southwest winds 5 to 10 mph. Chance of rain 40 percent.

WEDNESDAY
Sunny with highs in the lower 90s. Southwest winds 15 to 20 mph with gusts up to 30 mph. Heat index values up to 100.

WEDNESDAY NIGHT AND THURSDAY
Showers likely with a chance of thunderstorms. Breezy. Lows in the lower 70s. Highs in the upper 80s. Chance of rain 60 percent.

THURSDAY NIGHT
Showers with a chance of thunderstorms in the evening, then mostly cloudy after midnight. Lows in the mid 60s. Chance of rain 80 percent.

FRIDAY
Sunny. Highs in the lower 80s.

FRIDAY NIGHT
Clear. Lows in the lower 60s.

SATURDAY
Mostly sunny. Highs in the mid 80s.

SATURDAY NIGHT AND SUNDAY
Partly cloudy. A chance of showers and thunderstorms. Lows in the lower 60s. Highs in the lower 80s. 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 8:00 AM EDT 6/ 8/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Monday
8 JUN 2026

1 PM

78°

80°

Mostly Cloudy

94%
RAIN
***

0% Thunder
( 66% severe)

SSE 17

79%

71°

High 79°

4 PM

78°

80°

Mostly Cloudy

SSE 15

74%

69°

Mostly Cloudy

Rain

7 PM

77°

79°

Mostly Cloudy

83%
RAIN
***

0% Thunder
( 51% severe)

S 13

74%

68°

10 PM

72°

72°

Mostly Cloudy

S 10

87%

68°

Tuesday
9 JUN 2026

1 AM

70°

70°

Mostly Cloudy

47%
RAIN
.25–.5 in

0% Thunder
( 24% severe)

SSW 9

93%

68°

Low 68°

4 AM

70°

70°

Mostly Cloudy

SW 9

93%

68°

High 87°

7 AM

72°

72°

Mostly Cloudy

22%
RAIN
.1–.25 in

0% Thunder
( 18% severe)

SW 8

90%

69°

Mostly Cloudy

Chance of Rain

10 AM

78°

80°

Mostly Cloudy

WSW 10

82%

72°

1 PM

83°

89°

Partly Cloudy

19%
RAIN
.01–.1 in

0% Thunder
( 35% severe)

SW 12

72%

73°

4 PM

87°

94°

Mostly Cloudy

WSW 13

63%

73°

7 PM

86°

93°

Partly Cloudy

23%
RAIN
.25–.5 in

0% Thunder
( 34% severe)

W 9

65%

73°

10 PM

77°

78°

Partly Cloudy

S 8

85%

72°

Wednesday
10 JUN 2026

1 AM

75°

75°

Partly Cloudy

12%
RAIN
<.01 in

0% Thunder
( 19% severe)

SSW 9

84%

70°

Low 72°

4 AM

73°

73°

Partly Cloudy

SW 10

90%

70°

High 91°

7 AM

75°

75°

Clear

1%

0% Thunder
( 10% severe)

SSW 12

84%

70°

Partly Cloudy

10 AM

84°

90°

Clear

SW 15

70%

73°

1 PM

88°

95°

Partly Cloudy

5%

0% Thunder
( 28% severe)

SSW 17

59%

72°

4 PM

91°

97°

Partly Cloudy

SSW 18

50%

70°

7 PM

88°

93°

Partly Cloudy

S 18

55%

70°


DECATUR, IL extended weather forecast
Thursday 11 JUN 2026	Friday 12 JUN 2026	Saturday 13 JUN 2026	Sunday 14 JUN 2026	Monday 15 JUN 2026
Low 75°	Low 71°	Low 59°	Low 59°	Low 60°
High 92°	High 81°	High 84°	High 80°	High 75°

Mostly Cloudy 64% Rain	Overcast 54% Rain	Partly Cloudy 22% Rain	Partly Cloudy 18% Rain	Mostly Cloudy 53% Rain

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