Rock Island County, IL Weather Forecast
County weather hub
Chance Showers And Thunderstorms
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 showers and thunderstorms. Sunny, with a high near 91. Heat index values as high as 102. Southwest wind 5 to 10 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
- Jul 17 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 3:00 PM CDT
- Forecast office
- DVN
- Source
- NOAA / NWS
Daily Outlook
This Week in Rock Island County
Saturday looks like the warmest upcoming period in Rock Island County at 93 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 63 degrees F.
The strongest winds are forecast for Tuesday at about 10 to 15 mph NW.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 17, 2026 3:00 PM CDT
- Coverage
- 7 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 showers and thunderstorms before 7pm. Mostly clear, with a low around 75. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.
A chance of showers and thunderstorms after 3pm. Sunny. High near 93, with temperatures falling to around 88 in the afternoon. Heat index values as high as 101. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Mostly clear, with a low around 68. Northeast wind 5 to 10 mph.
Patchy smoke before 7am. Sunny, with a high near 88.
Mostly clear, with a low around 70.
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 73. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms before 7am. Sunny, with a high near 88.
Mostly clear, with a low around 64.
Sunny, with a high near 82.
Mostly clear, with a low around 63.
Sunny, with a high near 83.
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 64.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Jul 17
|
Chance Showers And Thunderstorms
|
91°F |
5 to 10 mph
SW
|
|
Tonight
Jul 17
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
75°F |
5 to 10 mph
SW
|
|
Saturday
Jul 18
|
Sunny then Chance Showers And Thunderstorms
|
93°F |
10 mph
W
|
|
Saturday Night
Jul 18
|
Mostly Clear
|
68°F |
5 to 10 mph
NE
|
|
Sunday
Jul 19
|
Patchy Smoke then Sunny
|
88°F |
5 mph
E
|
|
Sunday Night
Jul 19
|
Mostly Clear
|
70°F |
5 mph
SE
|
|
Monday
Jul 20
|
Mostly Sunny then Chance Showers And Thunderstorms
|
93°F |
5 to 10 mph
S
|
|
Monday Night
Jul 20
|
Chance Showers And Thunderstorms
|
73°F |
5 to 10 mph
W
|
|
Tuesday
Jul 21
|
Slight Chance Showers And Thunderstorms then Sunny
|
88°F |
10 to 15 mph
NW
|
|
Tuesday Night
Jul 21
|
Mostly Clear
|
64°F |
5 to 15 mph
N
|
|
Wednesday
Jul 22
|
Sunny
|
82°F |
5 mph
N
|
|
Wednesday Night
Jul 22
|
Mostly Clear
|
63°F |
0 to 5 mph
E
|
|
Thursday
Jul 23
|
Sunny
|
83°F |
0 to 5 mph
SE
|
|
Thursday Night
Jul 23
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
64°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.
