Boone County, IL Weather Forecast
County weather hub
Mostly Sunny then Slight Chance Showers And Thunderstorms
Compare major city weather across Boone County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88.
County Weather Overview
This county weather page brings together forecast coverage for Boone County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 3 of 3 mapped cities in Boone County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jun 8 to Jun 9, 2026
- Latest sync
- Jun 2, 2026 9:21 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Boone County
Monday looks like the warmest upcoming period in Boone County at 88 degrees F.
Monday Night is the coolest period ahead with temperatures near 63 degrees F.
The strongest winds are forecast for Monday at about 5 to 10 mph E.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 2, 2026 9:21 PM CDT
- Coverage
- 2 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KMKX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 63.
A slight chance of rain showers before 7am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
Jun 8
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
88°F |
5 to 10 mph
E
|
|
Monday Night
Jun 8
|
Slight Chance Showers And Thunderstorms
|
63°F |
5 to 10 mph
E
|
|
Tuesday
Jun 9
|
Chance Showers And Thunderstorms
|
87°F |
5 to 10 mph
E
|
Major City Forecasts
Live forecast snapshots for major cities across Boone County.
Coverage
Forecast coverage currently spans 3 of 3 mapped cities in Boone County.
Largest mapped city population in this region: 24,731.
