Cottonwood, IL Weather Forecast

Local 7-day forecast

99°
F

Sunny

Track current conditions, temperature changes, wind, and the full daily outlook for Cottonwood, IL in one place.

Thursday, September 17, 2026
Wind: 2 to 6 mph WSW
Thursday

Sunny, with a high near 99. West southwest wind 2 to 6 mph.

Local 7-day forecast

Local Weather Overview

This forecast page for Cottonwood, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Sep 15, 2026 5:14 PM CDT.

The active forecast window currently covers Sep 17 to Sep 21, 2026 for Cottonwood, IL.

Page Snapshot

Page focus
city weather
Forecast window
Sep 17 to Sep 21, 2026
Latest sync
Sep 15, 2026 5:14 PM CDT
Forecast office
PAH
Source
NOAA / NWS
Next High
99°F
Thursday
Next Low
72°F
Thursday Night
Rain Outlook
4
Periods mentioning precipitation
Windiest
3 to 9 mph
Sunday

Daily Outlook

Today
Sep 17
Sunny
99 °F
/ 72°F
Wind 2 to 6 mph
Fri
Sep 18
Sunny
96 °F
/ 71°F
Wind 0 to 3 mph
Sat
Sep 19
Sunny
97 °F
/ 72°F
Wind 3 to 8 mph
Sun
Sep 20
Mostly Sunny then Slight Chance Rain Showers
95 °F
/ 69°F
Wind 3 to 9 mph
Mon
Sep 21
Slight Chance Showers And Thunderstorms
88 °F
/ 64°F
Wind 5 to 9 mph

This Week in Cottonwood

Thursday looks like the warmest upcoming period in Cottonwood at 99 degrees F.

Monday Night is the coolest period ahead with temperatures near 64 degrees F.

The strongest winds are forecast for Sunday at about 3 to 9 mph WSW.

Precipitation is mentioned in 4 upcoming forecast periods.

Forecast Details

Last updated
Sep 15, 2026 5:14 PM CDT
Coverage
5 days
Time zone
America/Chicago
Forecast office
PAH
Radar station
KVWX

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

Open NOAA source

Extended Forecast

Thursday Night
Sep 17
72°F
Partly Cloudy
3 mph E

Partly cloudy, with a low around 72. East wind around 3 mph.

Friday
Sep 18
96°F
Sunny
0 to 3 mph SE

Sunny, with a high near 96. Southeast wind 0 to 3 mph.

Friday Night
Sep 18
71°F
Mostly Clear
3 mph SE

Mostly clear, with a low around 71. Southeast wind around 3 mph.

Saturday
Sep 19
97°F
Sunny
3 to 8 mph SSW

Sunny, with a high near 97. South southwest wind 3 to 8 mph.

Saturday Night
Sep 19
72°F
Partly Cloudy
7 mph SSW

Partly cloudy, with a low around 72. South southwest wind around 7 mph.

Sunday
Sep 20
95°F
Mostly Sunny then Slight Chance Rain Showers
3 to 9 mph WSW

A slight chance of rain showers after 1pm. Mostly sunny, with a high near 95. West southwest wind 3 to 9 mph.

Sunday Night
Sep 20
69°F
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
5 to 8 mph SW

A slight chance of rain showers before 1am, then a slight chance of showers and thunderstorms. Partly cloudy, with a low around 69. Southwest wind 5 to 8 mph.

Monday
Sep 21
88°F
Slight Chance Showers And Thunderstorms
5 to 9 mph WSW

A slight chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 88. West southwest wind 5 to 9 mph.

Monday Night
Sep 21
64°F
Chance Showers And Thunderstorms
5 to 8 mph N

A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 64. North wind 5 to 8 mph.

Detailed Forecast

Period Conditions Temp Wind
Thursday
Sep 17
Sunny
99°F
2 to 6 mph
WSW
Thursday Night
Sep 17
Partly Cloudy
72°F
3 mph
E
Friday
Sep 18
Sunny
96°F
0 to 3 mph
SE
Friday Night
Sep 18
Mostly Clear
71°F
3 mph
SE
Saturday
Sep 19
Sunny
97°F
3 to 8 mph
SSW
Saturday Night
Sep 19
Partly Cloudy
72°F
7 mph
SSW
Sunday
Sep 20
Mostly Sunny then Slight Chance Rain Showers
95°F
3 to 9 mph
WSW
Sunday Night
Sep 20
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
69°F
5 to 8 mph
SW
Monday
Sep 21
Slight Chance Showers And Thunderstorms
88°F
5 to 9 mph
WSW
Monday Night
Sep 21
Chance Showers And Thunderstorms
64°F
5 to 8 mph
N
Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.