Countryside, IL Weather Forecast
Local 7-day forecast
Patchy Fog then Partly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Countryside, IL in one place.
Patchy fog before 8am. Partly sunny, with a high near 91. Heat index values as high as 100. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Local Weather Overview
This forecast page for Countryside, 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: Jul 25, 2026 6:08 PM CDT.
The active forecast window currently covers Jul 26 to Jul 31, 2026 for Countryside, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 26 to Jul 31, 2026
- Latest sync
- Jul 25, 2026 6:08 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Countryside
Monday looks like the warmest upcoming period in Countryside at 92 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 65 degrees F.
The strongest winds are forecast for Monday at about 5 to 15 mph SW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 25, 2026 6:08 PM CDT
- Coverage
- 6 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 sourceExtended Forecast
A chance of showers and thunderstorms after 9pm. Mostly cloudy, with a low around 75. Heat index values as high as 99. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72. Chance of precipitation is 30%.
Mostly sunny, with a high near 84.
Mostly clear, with a low around 65.
Sunny, with a high near 83.
Mostly clear, with a low around 65.
Mostly sunny, with a high near 86.
A slight chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 68.
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 86.
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Jul 26
|
Patchy Fog then Partly Sunny
|
91°F |
5 to 10 mph
SW
|
|
Sunday Night
Jul 26
|
Chance Showers And Thunderstorms
|
75°F |
5 to 10 mph
SW
|
|
Monday
Jul 27
|
Chance Showers And Thunderstorms
|
92°F |
5 to 15 mph
SW
|
|
Monday Night
Jul 27
|
Chance Showers And Thunderstorms
|
72°F |
10 to 15 mph
WNW
|
|
Tuesday
Jul 28
|
Mostly Sunny
|
84°F |
10 to 15 mph
N
|
|
Tuesday Night
Jul 28
|
Mostly Clear
|
65°F |
5 to 15 mph
NNE
|
|
Wednesday
Jul 29
|
Sunny
|
83°F |
5 to 10 mph
NNE
|
|
Wednesday Night
Jul 29
|
Mostly Clear
|
65°F |
5 to 10 mph
NNE
|
|
Thursday
Jul 30
|
Mostly Sunny
|
86°F |
5 to 10 mph
NE
|
|
Thursday Night
Jul 30
|
Slight Chance Showers And Thunderstorms
|
68°F |
5 to 10 mph
ESE
|
|
Friday
Jul 31
|
Slight Chance Showers And Thunderstorms
|
86°F |
5 to 10 mph
SSW
|
|
Friday Night
Jul 31
|
Slight Chance Showers And Thunderstorms
|
69°F |
5 to 10 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Countryside.
