Rock Island County, IL Weather Forecast
County weather hub
Chance Rain Showers
Compare major city weather across Rock Island County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of rain showers after 11am. Mostly cloudy, with a high near 54. Northwest wind around 20 mph, with gusts as high as 40 mph. Chance of precipitation is 30%.
County Weather Overview
This county weather page brings together forecast coverage for Rock Island 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 Rock Island County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Oct 16 to Oct 21, 2026
- Latest sync
- Oct 15, 2026 3:38 PM CDT
- Forecast office
- DVN
- Source
- NOAA / NWS
Daily Outlook
This Week in Rock Island County
Wednesday looks like the warmest upcoming period in Rock Island County at 75 degrees F.
Friday Night is the coolest period ahead with temperatures near 34 degrees F.
The strongest winds are forecast for Friday at about 20 mph NW.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 15, 2026 3:38 PM CDT
- Coverage
- 6 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
A slight chance of rain showers before 7pm, then areas of frost. Mostly clear, with a low around 34. North wind 0 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.
Areas of frost before 9am. Sunny, with a high near 57.
Clear, with a low around 40.
Sunny, with a high near 66.
Mostly clear, with a low around 44.
Mostly sunny, with a high near 68.
Partly cloudy, with a low around 47.
Mostly sunny, with a high near 73.
Mostly clear, with a low around 51.
Sunny, with a high near 75.
Mostly clear, with a low around 55.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Oct 16
|
Chance Rain Showers
|
54°F |
20 mph
NW
|
|
Friday Night
Oct 16
|
Slight Chance Rain Showers then Areas Of Frost
|
34°F |
0 to 20 mph
N
|
|
Saturday
Oct 17
|
Areas Of Frost then Sunny
|
57°F |
0 to 5 mph
SW
|
|
Saturday Night
Oct 17
|
Clear
|
40°F |
5 mph
S
|
|
Sunday
Oct 18
|
Sunny
|
66°F |
5 to 10 mph
S
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
44°F |
5 to 10 mph
S
|
|
Monday
Oct 19
|
Mostly Sunny
|
68°F |
5 mph
S
|
|
Monday Night
Oct 19
|
Partly Cloudy
|
47°F |
0 to 5 mph
S
|
|
Tuesday
Oct 20
|
Mostly Sunny
|
73°F |
0 to 5 mph
SE
|
|
Tuesday Night
Oct 20
|
Mostly Clear
|
51°F |
0 mph
|
|
Wednesday
Oct 21
|
Sunny
|
75°F |
0 to 5 mph
SE
|
|
Wednesday Night
Oct 21
|
Mostly Clear
|
55°F |
5 mph
SE
|
Major City Forecasts
Live forecast snapshots for major cities across Rock Island County.
Coverage
Forecast coverage currently spans 9 of 9 mapped cities in Rock Island County.
Largest mapped city population in this region: 41,065.
