Louisville, IL Weather Forecast
Local 7-day forecast
Mostly Sunny then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Louisville, IL in one place.
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Heat index values as high as 102. West wind 6 to 12 mph, with gusts as high as 18 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Louisville, 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 17, 2026 10:31 AM CDT.
The active forecast window currently covers Jul 18 to Jul 23, 2026 for Louisville, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 18 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 10:31 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Louisville
Saturday looks like the warmest upcoming period in Louisville at 91 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 63 degrees F.
The strongest winds are forecast for Saturday at about 6 to 12 mph W.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 17, 2026 10:31 AM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KVWX
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. Partly cloudy, with a low around 72. Northwest wind 2 to 8 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
A slight chance of showers and thunderstorms before 7am. Sunny, with a high near 87. Northeast wind around 5 mph.
Mostly clear, with a low around 68. East northeast wind around 3 mph.
Mostly sunny, with a high near 90. South wind around 3 mph.
Partly cloudy, with a low around 74.
Mostly sunny, with a high near 91.
Mostly clear, with a low around 68.
Sunny, with a high near 82.
Mostly clear, with a low around 63.
Sunny, with a high near 82.
A slight chance of rain showers after 1am. Partly cloudy, with a low around 64.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Jul 18
|
Mostly Sunny then Chance Showers And Thunderstorms
|
91°F |
6 to 12 mph
W
|
|
Saturday Night
Jul 18
|
Chance Showers And Thunderstorms
|
72°F |
2 to 8 mph
NW
|
|
Sunday
Jul 19
|
Slight Chance Showers And Thunderstorms then Sunny
|
87°F |
5 mph
NE
|
|
Sunday Night
Jul 19
|
Mostly Clear
|
68°F |
3 mph
ENE
|
|
Monday
Jul 20
|
Mostly Sunny
|
90°F |
3 mph
S
|
|
Monday Night
Jul 20
|
Partly Cloudy
|
74°F |
3 to 7 mph
SSW
|
|
Tuesday
Jul 21
|
Mostly Sunny
|
91°F |
7 to 12 mph
W
|
|
Tuesday Night
Jul 21
|
Mostly Clear
|
68°F |
6 to 10 mph
NNW
|
|
Wednesday
Jul 22
|
Sunny
|
82°F |
9 mph
N
|
|
Wednesday Night
Jul 22
|
Mostly Clear
|
63°F |
3 to 8 mph
NNE
|
|
Thursday
Jul 23
|
Sunny
|
82°F |
5 mph
NE
|
|
Thursday Night
Jul 23
|
Partly Cloudy then Slight Chance Rain Showers
|
64°F |
5 mph
ENE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Louisville.
