La Salle County, IL Weather Forecast
County weather hub
Partly Sunny
Compare major city weather across LaSalle County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Partly sunny, with a high near 80. East northeast wind 5 to 15 mph, with gusts as high as 25 mph.
County Weather Overview
This county weather page brings together forecast coverage for LaSalle County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 9 of 9 mapped cities in LaSalle County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- May 30 to Jun 3, 2026
- Latest sync
- May 28, 2026 6:53 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in LaSalle County
Monday looks like the warmest upcoming period in LaSalle County at 83 degrees F.
Saturday Night is the coolest period ahead with temperatures near 54 degrees F.
The strongest winds are forecast for Saturday at about 5 to 15 mph ENE.
The forecast from May 30 through Jun 3 stays mostly dry.
Forecast Details
- Last updated
- May 28, 2026 6:53 PM CDT
- Coverage
- 5 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
Mostly cloudy, with a low around 54.
Mostly sunny, with a high near 80.
Partly cloudy, with a low around 57.
Mostly sunny, with a high near 83.
Mostly clear, with a low around 56.
Sunny, with a high near 82.
Mostly clear, with a low around 55.
Sunny, with a high near 82.
Mostly clear, with a low around 58.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
May 30
|
Partly Sunny
|
80°F |
5 to 15 mph
ENE
|
|
Saturday Night
May 30
|
Mostly Cloudy
|
54°F |
10 to 15 mph
E
|
|
Sunday
May 31
|
Mostly Sunny
|
80°F |
5 to 10 mph
E
|
|
Sunday Night
May 31
|
Partly Cloudy
|
57°F |
0 to 5 mph
ENE
|
|
Monday
Jun 1
|
Mostly Sunny
|
83°F |
0 to 5 mph
NE
|
|
Monday Night
Jun 1
|
Mostly Clear
|
56°F |
5 to 10 mph
ENE
|
|
Tuesday
Jun 2
|
Sunny
|
82°F |
5 to 10 mph
ENE
|
|
Tuesday Night
Jun 2
|
Mostly Clear
|
55°F |
5 to 10 mph
E
|
|
Wednesday
Jun 3
|
Sunny
|
82°F |
5 to 10 mph
ESE
|
|
Wednesday Night
Jun 3
|
Mostly Clear
|
58°F |
5 mph
SSE
|
Major City Forecasts
Live forecast snapshots for major cities across LaSalle County.
Coverage
Forecast coverage currently spans 9 of 9 mapped cities in LaSalle County.
Largest mapped city population in this region: 18,097.
