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 PM CDT AUG 29, 2026
Few Clouds 82°F
Feels Like:	83°F
Dewpoint:	61°F
Rel. Hum.:	49%
Visibility:	10 miles
Wind:	SSW at 9 mph
Pressure:	30.13 inches
Last 72 hours
Local Area Snow Depth
Illinois Current Weather
Illinois MOS Forecast Weather

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(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

THIS AFTERNOON
Mostly cloudy. Near steady temperature in the lower 80s. South winds around 10 mph.

TONIGHT
Partly cloudy. Not as cool with lows in the upper 60s. South winds 5 to 10 mph.

SUNDAY
Mostly sunny. Highs in the lower 90s. South winds 10 to 15 mph.

SUNDAY NIGHT
Partly cloudy. Lows in the lower 70s. South winds around 10 mph.

MONDAY
Sunny, hot with highs in the mid 90s. Southwest winds 10 to 15 mph.

MONDAY NIGHT THROUGH THURSDAY
Mostly clear. Hot. Lows in the mid 70s. Highs in the upper 90s.

THURSDAY NIGHT AND FRIDAY
Partly cloudy. Lows in the lower 70s. Highs in the lower 90s.

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 8/29/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

TIME
CDT

TEMP
(deg. F)

FEELS
LIKE

CLOUD
COVER

PRECIP
PROB.

THUNDER
PROB.

WIND
dir./mph

REL
HUM

DEWPT
(deg. F)

Saturday
29 AUG 2026

1 PM

83°

Mostly Cloudy

0% Thunder
( 1% severe)

S 9

46%

60°

High 85°

4 PM

84°

Mostly Cloudy

S 10

46%

61°

Decreasing Clouds

7 PM

79°

80°

Partly Cloudy

0% Thunder
( 3% severe)

SSE 8

56%

62°

10 PM

71°

Clear

SSE 8

73%

62°

Sunday
30 AUG 2026

1 AM

70°

Partly Cloudy

0% Thunder
( 4% severe)

S 8

73%

61°

Low 68°

4 AM

69°

Partly Cloudy

S 9

73%

60°

High 90°

7 AM

69°

Partly Cloudy

0% Thunder
( 3% severe)

S 10

73%

60°

Partly Cloudy

10 AM

80°

81°

Partly Cloudy

SSW 12

56%

63°

1 PM

88°

Mostly Cloudy

0% Thunder
( 4% severe)

SSW 14

42%

62°

4 PM

89°

90°

Partly Cloudy

S 14

41%

62°

7 PM

83°

84°

Partly Cloudy

0% Thunder
( 3% severe)

S 9

49%

62°

10 PM

76°

78°

Partly Cloudy

S 9

60%

61°

Monday
31 AUG 2026

1 AM

74°

Mostly Cloudy

0% Thunder
( 3% severe)

S 9

62%

60°

Low 72°

4 AM

73°

Partly Cloudy

S 10

64%

60°

High 94°

7 AM

72°

Partly Cloudy

0% Thunder
( 3% severe)

S 12

66%

60°

Partly Cloudy

10 AM

84°

85°

Partly Cloudy

SSW 13

51%

64°

1 PM

92°

94°

Partly Cloudy

0% Thunder
( 6% severe)

SSW 14

40%

64°

4 PM

93°

95°

Partly Cloudy

SSW 13

38%

64°

7 PM

87°

89°

Clear

S 9

48%

65°


DECATUR, IL extended weather forecast
Tuesday 1 SEP 2026	Wednesday 2 SEP 2026	Thursday 3 SEP 2026	Friday 4 SEP 2026	Saturday 5 SEP 2026
Low 71°	Low 69°	Low 69°	Low 71°	Low 64°
High 98°	High 95°	High 94°	High 93°	High 83°

Partly Cloudy 15% Rain	Clear 15% Rain	Partly Cloudy 19% Rain	Partly Cloudy 25% Rain	Mostly Cloudy 30% Rain