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 83.
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
- Jun 2 to Jun 6, 2026
- Latest sync
- May 31, 2026 8:27 AM 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 88 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 55 degrees F.
The strongest winds are forecast for Thursday at about 5 to 15 mph S.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- May 31, 2026 8:27 AM CDT
- Coverage
- 5 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 55.
Sunny, with a high near 84.
Partly cloudy, with a low around 57.
Mostly sunny, with a high near 87.
A slight chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 62. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 50%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 40%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jun 2
|
Sunny
|
83°F |
10 mph
E
|
|
Tuesday Night
Jun 2
|
Mostly Clear
|
55°F |
5 to 10 mph
E
|
|
Wednesday
Jun 3
|
Sunny
|
84°F |
5 to 10 mph
SE
|
|
Wednesday Night
Jun 3
|
Partly Cloudy
|
57°F |
5 to 10 mph
S
|
|
Thursday
Jun 4
|
Mostly Sunny
|
87°F |
5 to 15 mph
S
|
|
Thursday Night
Jun 4
|
Slight Chance Showers And Thunderstorms
|
62°F |
10 to 15 mph
S
|
|
Friday
Jun 5
|
Chance Showers And Thunderstorms
|
88°F |
10 to 15 mph
SW
|
|
Friday Night
Jun 5
|
Chance Showers And Thunderstorms
|
64°F |
10 to 15 mph
S
|
|
Saturday
Jun 6
|
Chance Showers And Thunderstorms
|
87°F |
10 mph
SW
|
|
Saturday Night
Jun 6
|
Chance Showers And Thunderstorms
|
63°F |
5 to 10 mph
S
|
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.
