Washington County, IA Weather Forecast
County weather hub
Sunny
Compare major city weather across Washington County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 93.
County Weather Overview
This county weather page brings together forecast coverage for Washington 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 Washington County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jul 17 to Jul 18, 2026
- Latest sync
- Jul 11, 2026 9:57 PM CDT
- Forecast office
- DVN
- Source
- NOAA / NWS
Daily Outlook
This Week in Washington County
Friday looks like the warmest upcoming period in Washington County at 93 degrees F.
Friday Night is the coolest period ahead with temperatures near 73 degrees F.
The strongest winds are forecast for Saturday at about 10 to 15 mph SW.
The forecast from Jul 17 through Jul 18 stays mostly dry.
Forecast Details
- Last updated
- Jul 11, 2026 9:57 PM CDT
- Coverage
- 2 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 73.
Sunny, with a high near 92.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Jul 17
|
Sunny
|
93°F |
5 to 10 mph
SW
|
|
Friday Night
Jul 17
|
Mostly Clear
|
73°F |
10 mph
SW
|
|
Saturday
Jul 18
|
Sunny
|
92°F |
10 to 15 mph
SW
|
Major City Forecasts
Live forecast snapshots for major cities across Washington County.
Coverage
Forecast coverage currently spans 3 of 3 mapped cities in Washington County.
Largest mapped city population in this region: 1,401.
