WEATHERTrackCAST - Decatur, IL Weekly Planner

Decatur, IL

Weekly Forecast

Updated: Apr 03 2026 1:41 AM CDT

Friday April 03

OVERNIGHT (NOW - 6AM)

Mostly Cloudy
Lo: 56°F

DAYTIME (6AM - 6PM)

Partly Sunny Then Chance Showers And Thunderstorms
Hi: 77°F

NIGHTTIME (6PM - 6AM)

Showers And Thunderstorms Likely
Lo: 58°F

Overnight: Mostly cloudy, with a low around 56. West southwest wind 6 to 9 mph. New rainfall amounts less than a tenth of an inch possible.

Friday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 77. South southwest wind 2 to 12 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.

Friday Night: Showers and thunderstorms likely before 2am, then showers and thunderstorms. Mostly cloudy. Low around 58, with temperatures rising to around 63 overnight. South southwest wind 10 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

	3:00 AM CDT	4:00 AM CDT	5:00 AM CDT	6:00 AM CDT	7:00 AM CDT	8:00 AM CDT	9:00 AM CDT	10:00 AM CDT	11:00 AM CDT	12:00 PM CDT	1:00 PM CDT	2:00 PM CDT	3:00 PM CDT	4:00 PM CDT	5:00 PM CDT	6:00 PM CDT	7:00 PM CDT	8:00 PM CDT	9:00 PM CDT	10:00 PM CDT	11:00 PM CDT	12:00 AM CDT	1:00 AM CDT	2:00 AM CDT	3:00 AM CDT	4:00 AM CDT	5:00 AM CDT	6:00 AM CDT
Conditions	Mostly Cloudy	Mostly Cloudy	Mostly Cloudy	Partly Sunny	Partly Sunny	Partly Sunny	Partly Sunny	Partly Sunny	Partly Sunny	Mostly Cloudy	Partly Sunny	Slight Chance Showers And Thunderstorms	Chance Showers And Thunderstorms	Chance Showers And Thunderstorms	Chance Showers And Thunderstorms	Chance Showers And Thunderstorms	Chance Showers And Thunderstorms	Chance Showers And Thunderstorms	Chance Showers And Thunderstorms	Chance Showers And Thunderstorms	Chance Showers And Thunderstorms	Chance Showers And Thunderstorms	Showers And Thunderstorms Likely	Showers And Thunderstorms	Showers And Thunderstorms	Showers And Thunderstorms	Showers And Thunderstorms	Showers And Thunderstorms Likely
Temperatures	60°F	59°F	58°F	57°F	57°F	58°F	60°F	63°F	66°F	69°F	72°F	74°F	76°F	76°F	76°F	74°F	73°F	71°F	69°F	68°F	68°F	67°F	67°F	66°F	65°F	64°F	63°F	62°F
Feels Like	60°F	59°F	58°F	57°F	57°F	58°F	60°F	63°F	66°F	69°F	72°F	74°F	76°F	76°F	76°F	74°F	73°F	71°F	69°F	68°F	68°F	67°F	67°F	66°F	65°F	64°F	63°F	62°F
Chance of Precip	9%	7%	6%	6%	4%	2%	5%	5%	6%	11%	13%	24%	33%	41%	41%	40%	37%	38%	38%	39%	47%	53%	63%	79%	85%	82%	80%	72%
Wind Speed	WSW @ 9 mph	W @ 7 mph	W @ 6 mph	W @ 3 mph	W @ 2 mph	SSW @ 3 mph	SSE @ 5 mph	SSE @ 6 mph	S @ 8 mph	S @ 9 mph	S @ 10 mph	S @ 10 mph	S @ 12 mph	S @ 12 mph	S @ 12 mph	S @ 10 mph	S @ 10 mph	S @ 10 mph	S @ 12 mph	S @ 13 mph	S @ 14 mph	S @ 14 mph	S @ 14 mph	SSW @ 15 mph	SW @ 15 mph	SW @ 14 mph	SSW @ 14 mph	SW @ 14 mph
Humidity	90%	87%	86%	86%	86%	83%	81%	81%	81%	84%	81%	76%	74%	71%	71%	76%	79%	81%	84%	87%	84%	87%	87%	87%	90%	90%	90%	93%
Dewpoint	57°F	55°F	54°F	53°F	53°F	53°F	54°F	57°F	60°F	64°F	66°F	66°F	67°F	66°F	66°F	66°F	66°F	65°F	64°F	64°F	63°F	63°F	63°F	62°F	62°F	61°F	60°F	60°F

Fri Apr 03 6:34 AM CDT

Fri Apr 03 7:23 PM CDT

12 h 48 m

5.8

337.5 DU

Full Moon

Saturday April 04

DAYTIME (6AM - 6PM)

Showers And Thunderstorms Likely
Hi: 64°F

NIGHTTIME (6PM - 6AM)

Slight Chance Rain Showers Then Partly Cloudy
Lo: 37°F

Saturday: Showers and thunderstorms likely. Mostly cloudy. High near 64, with temperatures falling to around 53 in the afternoon. West southwest wind 14 to 17 mph, with gusts as high as 32 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.

Saturday Night: A slight chance of rain showers before 7pm. Partly cloudy, with a low around 37. West northwest wind 12 to 16 mph, with gusts as high as 29 mph. New rainfall amounts less than a tenth of an inch possible.

	6:00 AM CDT	7:00 AM CDT	8:00 AM CDT	9:00 AM CDT	10:00 AM CDT	11:00 AM CDT	12:00 PM CDT	1:00 PM CDT	2:00 PM CDT	3:00 PM CDT	4:00 PM CDT	5:00 PM CDT	6:00 PM CDT	7:00 PM CDT	8:00 PM CDT	9:00 PM CDT	10:00 PM CDT	11:00 PM CDT	12:00 AM CDT	1:00 AM CDT	2:00 AM CDT	3:00 AM CDT	4:00 AM CDT	5:00 AM CDT	6:00 AM CDT
Conditions	Showers And Thunderstorms Likely	Rain Showers Likely	Rain Showers Likely	Rain Showers Likely	Rain Showers Likely	Rain Showers Likely	Rain Showers Likely	Slight Chance Rain Showers	Slight Chance Rain Showers	Slight Chance Rain Showers	Slight Chance Rain Showers	Slight Chance Rain Showers	Slight Chance Rain Showers	Mostly Cloudy	Mostly Cloudy	Mostly Cloudy	Partly Cloudy	Partly Cloudy	Partly Cloudy	Mostly Clear	Partly Cloudy	Partly Cloudy	Partly Cloudy	Partly Cloudy	Mostly Sunny
Temperatures	62°F	61°F	59°F	59°F	58°F	57°F	56°F	55°F	55°F	55°F	55°F	53°F	51°F	49°F	48°F	46°F	45°F	44°F	42°F	41°F	41°F	40°F	40°F	39°F	39°F
Feels Like	62°F	61°F	59°F	59°F	58°F	57°F	56°F	55°F	55°F	55°F	55°F	53°F	51°F	43°F	42°F	40°F	39°F	38°F	35°F	34°F	34°F	33°F	33°F	32°F	32°F
Chance of Precip	72%	65%	65%	65%	65%	65%	65%	21%	21%	21%	21%	21%	21%	2%	2%	2%	2%	2%	2%	0%	0%	0%	0%	0%	0%
Wind Speed	SW @ 14 mph	SW @ 14 mph	WSW @ 14 mph	W @ 14 mph	W @ 14 mph	W @ 15 mph	W @ 15 mph	W @ 16 mph	W @ 17 mph	W @ 17 mph	W @ 17 mph	W @ 17 mph	WNW @ 16 mph	WNW @ 15 mph	WNW @ 15 mph	WNW @ 14 mph	WNW @ 14 mph	WNW @ 13 mph	WNW @ 13 mph	WNW @ 12 mph	WNW @ 12 mph	WNW @ 12 mph	WNW @ 12 mph	WNW @ 12 mph	WNW @ 12 mph
Humidity	93%	93%	93%	90%	90%	86%	83%	80%	74%	72%	66%	66%	66%	66%	65%	71%	70%	70%	73%	73%	73%	76%	76%	79%	76%
Dewpoint	60°F	59°F	57°F	56°F	55°F	53°F	51°F	49°F	47°F	46°F	44°F	42°F	40°F	38°F	37°F	37°F	36°F	35°F	34°F	33°F	33°F	33°F	33°F	33°F	32°F

Sat Apr 04 6:33 AM CDT

Sat Apr 04 7:24 PM CDT

12 h 51 m

6.2

325.6 DU

Waning Gibbous Moon

Sunday April 05

DAYTIME (6AM - 6PM)

Mostly Sunny
Hi: 53°F

NIGHTTIME (6PM - 6AM)

Mostly Clear
Lo: 37°F

Sunday: Mostly sunny, with a high near 53. West northwest wind around 14 mph, with gusts as high as 23 mph.

Sunday Night: Mostly clear, with a low around 37. West northwest wind 7 to 10 mph, with gusts as high as 17 mph.

	6:00 AM CDT	7:00 AM CDT	8:00 AM CDT	9:00 AM CDT	10:00 AM CDT	11:00 AM CDT	12:00 PM CDT	1:00 PM CDT	2:00 PM CDT	3:00 PM CDT	4:00 PM CDT	5:00 PM CDT	6:00 PM CDT	7:00 PM CDT	8:00 PM CDT	9:00 PM CDT	10:00 PM CDT	11:00 PM CDT	12:00 AM CDT	1:00 AM CDT	2:00 AM CDT	3:00 AM CDT	4:00 AM CDT	5:00 AM CDT	6:00 AM CDT
Conditions	Mostly Sunny	Mostly Sunny	Mostly Sunny	Mostly Sunny	Mostly Sunny	Mostly Sunny	Mostly Sunny	Mostly Sunny	Mostly Sunny	Mostly Sunny	Mostly Sunny	Sunny	Mostly Clear	Mostly Clear	Mostly Clear	Mostly Clear	Mostly Clear	Mostly Clear	Mostly Clear	Mostly Clear	Mostly Clear	Mostly Clear	Mostly Clear	Mostly Clear	Sunny
Temperatures	39°F	38°F	39°F	41°F	42°F	44°F	46°F	48°F	49°F	51°F	52°F	51°F	51°F	50°F	48°F	46°F	44°F	43°F	42°F	41°F	40°F	40°F	39°F	39°F	38°F
Feels Like	32°F	30°F	31°F	33°F	35°F	37°F	40°F	42°F	44°F	51°F	52°F	51°F	51°F	46°F	44°F	42°F	40°F	39°F	38°F	36°F	35°F	35°F	33°F	33°F	32°F
Chance of Precip	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	2%	2%	2%	2%	2%	2%	1%	1%	1%	1%	1%	1%
Wind Speed	WNW @ 12 mph	WNW @ 12 mph	WNW @ 13 mph	WNW @ 14 mph	WNW @ 14 mph	WNW @ 14 mph	WNW @ 14 mph	WNW @ 14 mph	WNW @ 14 mph	WNW @ 14 mph	WNW @ 14 mph	WNW @ 13 mph	WNW @ 10 mph	WNW @ 9 mph	WNW @ 8 mph	WNW @ 7 mph	W @ 7 mph	W @ 7 mph	W @ 7 mph	W @ 7 mph	W @ 7 mph	W @ 8 mph	W @ 8 mph	W @ 8 mph	WNW @ 9 mph
Humidity	76%	79%	76%	73%	70%	68%	63%	60%	58%	54%	52%	54%	54%	56%	60%	65%	70%	73%	73%	76%	79%	79%	82%	82%	85%
Dewpoint	32°F	32°F	32°F	33°F	33°F	34°F	34°F	35°F	35°F	35°F	35°F	35°F	35°F	35°F	35°F	35°F	35°F	35°F	34°F	34°F	34°F	34°F	34°F	34°F	34°F

Sun Apr 05 6:31 AM CDT

Sun Apr 05 7:25 PM CDT

12 h 53 m

5.6

353.8 DU

Waning Gibbous Moon

Monday April 06

DAYTIME (6AM - 6PM)

Sunny
Hi: 55°F

NIGHTTIME (6PM - 6AM)

Mostly Clear
Lo: 30°F

Monday: Sunny, with a high near 55.

Monday Night: Mostly clear, with a low around 30.

	6:00 AM CDT	7:00 AM CDT	8:00 AM CDT	9:00 AM CDT	10:00 AM CDT	11:00 AM CDT	12:00 PM CDT	1:00 PM CDT	2:00 PM CDT	3:00 PM CDT	4:00 PM CDT	5:00 PM CDT	6:00 PM CDT	7:00 PM CDT	8:00 PM CDT	9:00 PM CDT	10:00 PM CDT	11:00 PM CDT	12:00 AM CDT	1:00 AM CDT	2:00 AM CDT	3:00 AM CDT	4:00 AM CDT	5:00 AM CDT	6:00 AM CDT
Conditions	Sunny	Sunny	Sunny	Sunny	Sunny	Sunny	Sunny	Sunny	Sunny	Sunny	Mostly Sunny	Mostly Sunny	Partly Cloudy	Partly Cloudy	Partly Cloudy	Partly Cloudy	Mostly Clear	Mostly Clear	Mostly Clear	Mostly Clear	Mostly Clear	Mostly Clear	Mostly Clear	Mostly Clear	Sunny
Temperatures	38°F	38°F	41°F	43°F	46°F	48°F	50°F	52°F	53°F	53°F	54°F	53°F	51°F	50°F	47°F	44°F	42°F	40°F	39°F	37°F	35°F	33°F	32°F	31°F	30°F
Feels Like	32°F	32°F	35°F	37°F	40°F	43°F	45°F	52°F	53°F	53°F	54°F	53°F	51°F	45°F	42°F	39°F	36°F	34°F	32°F	30°F	27°F	25°F	24°F	22°F	22°F
Chance of Precip	1%	0%	0%	0%	0%	0%	0%	1%	1%	1%	1%	1%	1%	2%	2%	2%	2%	2%	2%	3%	3%	3%	3%	3%	3%
Wind Speed	WNW @ 9 mph	WNW @ 9 mph	WNW @ 10 mph	NW @ 12 mph	NW @ 13 mph	NW @ 13 mph	NW @ 14 mph	NW @ 14 mph	NW @ 14 mph	NW @ 15 mph	NW @ 15 mph	NW @ 15 mph	NW @ 14 mph	NW @ 13 mph	NW @ 12 mph	NNW @ 10 mph	NNW @ 10 mph	NNW @ 10 mph	NNW @ 10 mph	NNW @ 10 mph	NNW @ 10 mph	N @ 10 mph	N @ 10 mph	N @ 10 mph	N @ 9 mph
Humidity	85%	85%	76%	73%	65%	60%	54%	50%	46%	46%	43%	43%	46%	46%	49%	55%	57%	59%	57%	59%	61%	66%	69%	72%	72%
Dewpoint	34°F	34°F	34°F	35°F	35°F	35°F	34°F	34°F	33°F	33°F	32°F	31°F	31°F	30°F	29°F	29°F	28°F	27°F	25°F	24°F	23°F	23°F	23°F	23°F	22°F

Mon Apr 06 6:29 AM CDT

Mon Apr 06 7:26 PM CDT

12 h 56 m

5.3

373.0 DU

Waning Gibbous Moon

Tuesday April 07

DAYTIME (6AM - 6PM)

Sunny
Hi: 51°F

NIGHTTIME (6PM - 6AM)

Partly Cloudy
Lo: 36°F

Tuesday: Sunny, with a high near 51.

Tuesday Night: Partly cloudy, with a low around 36.

	6:00 AM CDT	7:00 AM CDT	8:00 AM CDT	9:00 AM CDT	10:00 AM CDT	11:00 AM CDT	12:00 PM CDT	1:00 PM CDT	2:00 PM CDT	3:00 PM CDT	4:00 PM CDT	5:00 PM CDT	6:00 PM CDT	7:00 PM CDT	8:00 PM CDT	9:00 PM CDT	10:00 PM CDT	11:00 PM CDT	12:00 AM CDT	1:00 AM CDT	2:00 AM CDT	3:00 AM CDT	4:00 AM CDT	5:00 AM CDT	6:00 AM CDT
Conditions	Sunny	Sunny	Sunny	Sunny	Sunny	Sunny	Sunny	Mostly Sunny	Sunny	Sunny	Sunny	Sunny	Partly Cloudy	Partly Cloudy	Partly Cloudy	Partly Cloudy	Partly Cloudy	Partly Cloudy	Mostly Cloudy	Mostly Cloudy	Mostly Cloudy	Mostly Cloudy	Mostly Cloudy	Mostly Cloudy	Partly Sunny
Temperatures	30°F	30°F	32°F	34°F	37°F	40°F	43°F	46°F	48°F	49°F	50°F	50°F	49°F	47°F	45°F	43°F	41°F	40°F	39°F	38°F	37°F	37°F	37°F	36°F	36°F
Feels Like	22°F	22°F	24°F	27°F	30°F	35°F	38°F	42°F	45°F	46°F	47°F	47°F	46°F	44°F	41°F	39°F	36°F	35°F	33°F	31°F	30°F	29°F	29°F	27°F	27°F
Chance of Precip	3%	1%	1%	1%	1%	1%	1%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	3%	3%	3%	3%	3%	3%
Wind Speed	N @ 9 mph	N @ 9 mph	NNE @ 9 mph	NNE @ 9 mph	NNE @ 9 mph	NE @ 8 mph	NE @ 8 mph	NE @ 7 mph	ENE @ 7 mph	ENE @ 7 mph	ENE @ 7 mph	E @ 7 mph	E @ 7 mph	ESE @ 7 mph	ESE @ 7 mph	SE @ 7 mph	SE @ 7 mph	SE @ 8 mph	SE @ 9 mph	SE @ 10 mph	SE @ 10 mph	SSE @ 12 mph	SSE @ 12 mph	SSE @ 13 mph	SSE @ 13 mph
Humidity	72%	72%	66%	61%	54%	48%	45%	40%	37%	36%	34%	36%	37%	42%	45%	51%	55%	57%	59%	62%	64%	64%	64%	67%	67%
Dewpoint	22°F	22°F	22°F	22°F	22°F	22°F	23°F	23°F	23°F	23°F	23°F	24°F	24°F	25°F	25°F	26°F	26°F	26°F	26°F	26°F	26°F	26°F	26°F	26°F	26°F

Tue Apr 07 6:28 AM CDT

Tue Apr 07 7:27 PM CDT

12 h 58 m

5.5

363.8 DU

Waning Gibbous Moon

Wednesday April 08

DAYTIME (6AM - 6PM)

Partly Sunny
Hi: 67°F

NIGHTTIME (6PM - 6AM)

Slight Chance Rain Showers
Lo: 51°F

Wednesday: Partly sunny, with a high near 67.

Wednesday Night: A slight chance of rain showers after 7pm. Partly cloudy, with a low around 51.

	6:00 AM CDT	7:00 AM CDT	8:00 AM CDT	9:00 AM CDT	10:00 AM CDT	11:00 AM CDT	12:00 PM CDT	1:00 PM CDT	2:00 PM CDT	3:00 PM CDT	4:00 PM CDT	5:00 PM CDT	6:00 PM CDT	7:00 PM CDT	8:00 PM CDT	9:00 PM CDT	10:00 PM CDT	11:00 PM CDT	12:00 AM CDT	1:00 AM CDT	2:00 AM CDT	3:00 AM CDT	4:00 AM CDT	5:00 AM CDT	6:00 AM CDT
Conditions	Partly Sunny	Mostly Cloudy	Partly Sunny	Partly Sunny	Partly Sunny	Partly Sunny	Partly Sunny	Partly Sunny	Mostly Sunny	Mostly Sunny	Mostly Sunny	Mostly Sunny	Partly Cloudy	Slight Chance Rain Showers	Slight Chance Rain Showers	Slight Chance Rain Showers	Slight Chance Rain Showers	Slight Chance Rain Showers	Slight Chance Rain Showers	Slight Chance Rain Showers	Slight Chance Rain Showers	Slight Chance Rain Showers	Slight Chance Rain Showers	Slight Chance Rain Showers	Slight Chance Rain Showers
Temperatures	36°F	37°F	40°F	44°F	49°F	53°F	58°F	61°F	64°F	66°F	66°F	65°F	63°F	61°F	59°F	57°F	56°F	55°F	55°F	54°F	53°F	53°F	52°F	51°F	51°F
Feels Like	27°F	28°F	32°F	37°F	43°F	53°F	58°F	61°F	64°F	66°F	66°F	65°F	63°F	61°F	59°F	57°F	56°F	55°F	55°F	54°F	53°F	53°F	52°F	51°F	51°F
Chance of Precip	3%	4%	4%	4%	4%	4%	4%	4%	4%	4%	4%	4%	4%	16%	16%	16%	16%	16%	16%	19%	19%	19%	19%	19%	19%
Wind Speed	SSE @ 13 mph	SSE @ 14 mph	SSE @ 15 mph	S @ 15 mph	S @ 16 mph	S @ 16 mph	S @ 17 mph	S @ 17 mph	S @ 17 mph	S @ 17 mph	S @ 17 mph	S @ 16 mph	S @ 16 mph	S @ 15 mph	S @ 15 mph	S @ 15 mph	S @ 15 mph	S @ 15 mph	S @ 15 mph	S @ 15 mph	S @ 15 mph	S @ 15 mph	S @ 15 mph	S @ 15 mph	S @ 14 mph
Humidity	67%	64%	62%	57%	52%	48%	42%	41%	40%	38%	40%	43%	46%	49%	53%	55%	57%	59%	59%	61%	64%	66%	69%	71%	71%
Dewpoint	26°F	26°F	28°F	30°F	32°F	34°F	35°F	37°F	39°F	40°F	41°F	42°F	42°F	42°F	42°F	41°F	41°F	41°F	41°F	41°F	41°F	42°F	42°F	42°F	42°F

Wed Apr 08 6:26 AM CDT

Wed Apr 08 7:28 PM CDT

13 h 1 m

N/A

Third Quarter Moon

Thursday April 09

DAYTIME (6AM - 6PM)

Slight Chance Rain Showers
Hi: 73°F

Thursday: A slight chance of rain showers. Partly sunny, with a high near 73.

	6:00 AM CDT	7:00 AM CDT	8:00 AM CDT	9:00 AM CDT	10:00 AM CDT	11:00 AM CDT	12:00 PM CDT	1:00 PM CDT	2:00 PM CDT
Conditions	Slight Chance Rain Showers	Partly Sunny	Partly Sunny	Partly Sunny	Partly Sunny	Partly Sunny	Partly Sunny	Slight Chance Rain Showers	Slight Chance Rain Showers
Temperatures	51°F	52°F	54°F	57°F	61°F	65°F	68°F	71°F	72°F
Feels Like	51°F	52°F	54°F	57°F	61°F	65°F	68°F	71°F	72°F
Chance of Precip	19%	12%	12%	12%	12%	12%	12%	21%	21%
Wind Speed	S @ 14 mph	S @ 14 mph	S @ 14 mph	SSW @ 15 mph	SSW @ 16 mph	SSW @ 16 mph	SSW @ 17 mph	SSW @ 17 mph	SSW @ 17 mph
Humidity	71%	69%	69%	67%	62%	58%	54%	51%	49%
Dewpoint	42°F	42°F	44°F	46°F	48°F	50°F	51°F	52°F	52°F

Thu Apr 09 6:25 AM CDT

Thu Apr 09 7:29 PM CDT

13 h 4 m

N/A

Third Quarter Moon

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