DECATUR, IL 62521 Weather Forecast & Current Conditions

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62521 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
DECATUR, IL Current Weather
5:54 PM CDT OCT 26, 2026
Clear 72°F
Feels Like:	72°F
Dewpoint:	48°F
Rel. Hum.:	43%
Visibility:	10 miles
Wind:	Calm
Pressure:	30.26 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 2026 Hurricanes	DECATUR, IL 62521 Weather Forecast	Snowfall Forecast pages Snow Depth pages

TONIGHT
Mostly clear this evening, then becoming partly cloudy. Lows in the upper 40s. Southeast winds around 5 mph.

TUESDAY
Mostly sunny in the morning, then becoming mostly cloudy. Highs in the mid 70s. South winds 5 to 10 mph.

TUESDAY NIGHT
Mostly cloudy. Lows around 50. South winds around 5 mph.

WEDNESDAY
Mostly sunny. Highs in the mid 70s. South winds 5 to 10 mph.

WEDNESDAY NIGHT
Mostly clear. Lows in the mid 50s. South winds 5 to 10 mph.

THURSDAY
Sunny. Highs around 80.

THURSDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 50s.

FRIDAY THROUGH SATURDAY
Mostly cloudy. Highs in the upper 70s. Lows in the mid 50s.

SATURDAY NIGHT AND SUNDAY
Mostly cloudy. A 40 percent chance of showers. Lows in the mid 50s. Highs in the mid 70s.

SUNDAY NIGHT
Mostly cloudy. Lows in the mid 50s.

MONDAY
Mostly cloudy with a 50 percent chance of showers. Highs in the lower 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 7:00 AM EST 10/26/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

TIME
CST

TEMP
(deg. F)

FEELS
LIKE

CLOUD
COVER

PRECIP
PROB.

THUNDER
PROB.

WIND
dir./mph

REL
HUM

DEWPT
(deg. F)

Monday
26 OCT 2026

12 PM

73°

Mostly Cloudy

0% Thunder
( 0% severe)

S 3

44%

50°

High 77°

3 PM

76°

78°

Mostly Cloudy

SSE 2

39%

49°

Mostly Cloudy

6 PM

65°

Partly Cloudy

0% Thunder
( 0% severe)

ESE 1

58%

50°

9 PM

56°

Partly Cloudy

E 3

80%

50°

Tuesday
27 OCT 2026

12 AM

53°

Partly Cloudy

0% Thunder
( 0% severe)

E 1

86%

49°

Low 48°

3 AM

50°

Mostly Cloudy

ESE 1

93%

48°

High 74°

6 AM

49°

Mostly Cloudy

0% Thunder
( 0% severe)

SSE 2

93%

47°

Mostly Cloudy

9 AM

63°

Mostly Cloudy

S 6

67%

52°

12 PM

72°

Mostly Cloudy

0% Thunder
( 0% severe)

S 9

44%

49°

3 PM

73°

Mostly Cloudy

S 9

40%

47°

6 PM

63°

Mostly Cloudy

0% Thunder
( 0% severe)

S 6

60%

49°

9 PM

57°

56°

Mostly Cloudy

SSE 6

75%

49°

Wednesday
28 OCT 2026

12 AM

55°

54°

Mostly Cloudy

0% Thunder
( 1% severe)

S 6

77%

48°

Low 50°

3 AM

53°

52°

Partly Cloudy

S 5

83%

48°

High 75°

6 AM

52°

51°

Partly Cloudy

0% Thunder
( 1% severe)

S 5

86%

48°

Partly Cloudy

9 AM

64°

Mostly Cloudy

S 7

65%

52°

12 PM

73°

Partly Cloudy

0% Thunder
( 2% severe)

S 10

44%

50°

3 PM

75°

Partly Cloudy

SSW 10

40%

49°

6 PM

65°

Partly Cloudy

S 8

58%

50°


DECATUR, IL extended weather forecast
Thursday 29 OCT 2026	Friday 30 OCT 2026	Saturday 31 OCT 2026	Sunday 1 NOV 2026	Monday 2 NOV 2026
Low 52°	Low 52°	Low 53°	Low 51°	Low 48°
High 78°	High 75°	High 68°	High 66°	High 65°

Partly Cloudy 25% Rain	Overcast 47% Rain	Overcast 37% Rain	Overcast 52% Rain	Overcast 47% Rain