Kankakee County, IL Weather Forecast

County weather hub

86°
F

Partly Sunny

Compare major city weather across Kankakee County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.

Sunday, May 17, 2026
Wind: 10 to 20 mph S
Today

Partly sunny, with a high near 86. South wind 10 to 20 mph, with gusts as high as 30 mph.

County weather hub

County Weather Overview

This county weather page brings together forecast coverage for Kankakee County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.

Current forecast coverage spans 6 of 6 mapped cities in Kankakee County.

Page Snapshot

Page focus
county weather
Forecast window
May 17 to May 23, 2026
Latest sync
May 17, 2026 9:38 AM CDT
Forecast office
LOT
Source
NOAA / NWS
Next High
86°F
Today
Next Low
68°F
Tonight
Rain Outlook
7
Periods mentioning precipitation
Windiest
10 to 20 mph
Today

Daily Outlook

Today
May 17
Partly Sunny
86 °F
/ 68°F
Wind 10 to 20 mph
Mon
May 18
Showers And Thunderstorms Likely
84 °F
/ 67°F
Wind 15 to 20 mph
Tue
May 19
Showers And Thunderstorms Likely
83 °F
/ 51°F
Wind 15 to 20 mph
Wed
May 20
Mostly Sunny
65 °F
/ 44°F
Wind 5 to 10 mph
Thu
May 21
Mostly Sunny
67 °F
/ 47°F
Wind 5 to 10 mph
Fri
May 22
Partly Sunny
72 °F
/ 52°F
Wind 5 mph
Sat
May 23
Slight Chance Rain Showers
77 °F
/ 56°F
Wind 5 mph

This Week in Kankakee County

Today looks like the warmest upcoming period in Kankakee County at 86 degrees F.

Wednesday Night is the coolest period ahead with temperatures near 44 degrees F.

The strongest winds are forecast for Today at about 10 to 20 mph S.

Precipitation is mentioned in 7 upcoming forecast periods.

Forecast Details

Last updated
May 17, 2026 9:38 AM CDT
Coverage
7 days
Time zone
America/Chicago
Forecast office
LOT
Radar station
KLOT

Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.

Open NOAA source

Extended Forecast

Tonight
May 17
68°F
Mostly Clear
10 to 20 mph S

Mostly clear, with a low around 68. South wind 10 to 20 mph, with gusts as high as 30 mph.

Monday
May 18
84°F
Showers And Thunderstorms Likely
15 to 20 mph SSW

A slight chance of rain showers between 8am and 9am, then showers and thunderstorms likely. Partly sunny. High near 84, with temperatures falling to around 82 in the afternoon. South southwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Monday Night
May 18
67°F
Showers And Thunderstorms Likely
15 mph SSW

Showers and thunderstorms likely. Mostly cloudy, with a low around 67. South southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

Tuesday
May 19
83°F
Showers And Thunderstorms Likely
15 to 20 mph SW

Showers and thunderstorms likely. Mostly cloudy, with a high near 83. Southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.

Tuesday Night
May 19
51°F
Showers And Thunderstorms Likely
10 to 15 mph WNW

Showers and thunderstorms likely before 1am. Mostly cloudy, with a low around 51. Chance of precipitation is 70%.

Wednesday
May 20
65°F
Mostly Sunny
5 to 10 mph N

Mostly sunny, with a high near 65.

Wednesday Night
May 20
44°F
Partly Cloudy
5 to 10 mph NE

Partly cloudy, with a low around 44.

Thursday
May 21
67°F
Mostly Sunny
5 to 10 mph ENE

Mostly sunny, with a high near 67.

Thursday Night
May 21
47°F
Partly Cloudy
5 to 10 mph ENE

Partly cloudy, with a low around 47.

Friday
May 22
72°F
Partly Sunny
5 mph E

Partly sunny, with a high near 72.

Friday Night
May 22
52°F
Slight Chance Rain Showers
5 mph E

A slight chance of rain showers after 7pm. Mostly cloudy, with a low around 52.

Saturday
May 23
77°F
Slight Chance Rain Showers
5 mph E

A slight chance of rain showers. Mostly cloudy, with a high near 77.

Saturday Night
May 23
56°F
Slight Chance Rain Showers then Mostly Cloudy
5 mph E

A slight chance of rain showers before 7pm. Mostly cloudy, with a low around 56.

Detailed Forecast

Period Conditions Temp Wind
Today
May 17
Partly Sunny
86°F
10 to 20 mph
S
Tonight
May 17
Mostly Clear
68°F
10 to 20 mph
S
Monday
May 18
Showers And Thunderstorms Likely
84°F
15 to 20 mph
SSW
Monday Night
May 18
Showers And Thunderstorms Likely
67°F
15 mph
SSW
Tuesday
May 19
Showers And Thunderstorms Likely
83°F
15 to 20 mph
SW
Tuesday Night
May 19
Showers And Thunderstorms Likely
51°F
10 to 15 mph
WNW
Wednesday
May 20
Mostly Sunny
65°F
5 to 10 mph
N
Wednesday Night
May 20
Partly Cloudy
44°F
5 to 10 mph
NE
Thursday
May 21
Mostly Sunny
67°F
5 to 10 mph
ENE
Thursday Night
May 21
Partly Cloudy
47°F
5 to 10 mph
ENE
Friday
May 22
Partly Sunny
72°F
5 mph
E
Friday Night
May 22
Slight Chance Rain Showers
52°F
5 mph
E
Saturday
May 23
Slight Chance Rain Showers
77°F
5 mph
E
Saturday Night
May 23
Slight Chance Rain Showers then Mostly Cloudy
56°F
5 mph
E
Kankakee County Courthouse
Kankakee County Courthouse image
Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.