Whiteside County, IL Weather Forecast
County weather hub
Sunny
Compare major city weather across Whiteside County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 92.
County Weather Overview
This county weather page brings together forecast coverage for Whiteside County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 5 of 5 mapped cities in Whiteside County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jul 15 to Jul 17, 2026
- Latest sync
- Jul 11, 2026 3:05 AM CDT
- Forecast office
- DVN
- Source
- NOAA / NWS
Daily Outlook
This Week in Whiteside County
Wednesday looks like the warmest upcoming period in Whiteside County at 92 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 69 degrees F.
The strongest winds are forecast for Thursday at about 5 to 10 mph SW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 11, 2026 3:05 AM CDT
- Coverage
- 3 days
- Time zone
- America/Chicago
- Forecast office
- DVN
- Radar station
- KDVN
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 69.
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 90.
A slight chance of showers and thunderstorms. Mostly clear, with a low around 69.
A slight chance of showers and thunderstorms. Sunny, with a high near 88.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Jul 15
|
Sunny
|
92°F |
5 mph
W
|
|
Wednesday Night
Jul 15
|
Mostly Clear
|
69°F |
5 mph
SW
|
|
Thursday
Jul 16
|
Sunny then Slight Chance Showers And Thunderstorms
|
90°F |
5 to 10 mph
SW
|
|
Thursday Night
Jul 16
|
Slight Chance Showers And Thunderstorms
|
69°F |
5 mph
SE
|
|
Friday
Jul 17
|
Slight Chance Showers And Thunderstorms
|
88°F |
5 to 10 mph
SE
|
Major City Forecasts
Live forecast snapshots for major cities across Whiteside County.
Coverage
Forecast coverage currently spans 5 of 5 mapped cities in Whiteside County.
Largest mapped city population in this region: 14,313.
