Washington, IA Weather Forecast
Local 7-day forecast
Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Washington, IA in one place.
A slight chance of showers and thunderstorms. Mostly clear, with a low around 72. Southwest wind around 5 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for Washington, IA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 17, 2026 5:05 AM CDT.
The active forecast window currently covers Jul 17 to Jul 23, 2026 for Washington, IA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 17 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 5:05 AM CDT
- Forecast office
- DVN
- Source
- NOAA / NWS
Daily Outlook
This Week in Washington
Monday looks like the warmest upcoming period in Washington at 95 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 62 degrees F.
The strongest winds are forecast for Tuesday at about 10 to 20 mph NW.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 17, 2026 5:05 AM 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 chance of showers and thunderstorms. Mostly sunny, with a high near 91. Heat index values as high as 102. Southwest wind 5 to 10 mph. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms before midnight. Mostly clear, with a low around 73. Heat index values as high as 102. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.
Sunny, with a high near 93. Heat index values as high as 103. Northwest wind around 10 mph.
Mostly clear, with a low around 68.
Sunny, with a high near 89.
Mostly clear, with a low around 70.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 95.
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 72.
A slight chance of showers and thunderstorms before 7am. Sunny, with a high near 88.
Mostly clear, with a low around 63.
Sunny, with a high near 81.
A slight chance of rain showers after 1am. Mostly clear, with a low around 62.
A slight chance of rain showers before 1pm. Mostly sunny, with a high near 82.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Jul 17
|
Slight Chance Showers And Thunderstorms
|
72°F |
5 mph
SW
|
|
Friday
Jul 17
|
Chance Showers And Thunderstorms
|
91°F |
5 to 10 mph
SW
|
|
Friday Night
Jul 17
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
73°F |
5 to 10 mph
SW
|
|
Saturday
Jul 18
|
Sunny
|
93°F |
10 mph
NW
|
|
Saturday Night
Jul 18
|
Mostly Clear
|
68°F |
5 to 10 mph
NE
|
|
Sunday
Jul 19
|
Sunny
|
89°F |
5 mph
E
|
|
Sunday Night
Jul 19
|
Mostly Clear
|
70°F |
5 to 10 mph
SE
|
|
Monday
Jul 20
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
95°F |
10 mph
S
|
|
Monday Night
Jul 20
|
Slight Chance Showers And Thunderstorms
|
72°F |
10 mph
W
|
|
Tuesday
Jul 21
|
Slight Chance Showers And Thunderstorms then Sunny
|
88°F |
10 to 20 mph
NW
|
|
Tuesday Night
Jul 21
|
Mostly Clear
|
63°F |
10 to 15 mph
N
|
|
Wednesday
Jul 22
|
Sunny
|
81°F |
10 mph
NE
|
|
Wednesday Night
Jul 22
|
Mostly Clear then Slight Chance Rain Showers
|
62°F |
5 mph
E
|
|
Thursday
Jul 23
|
Slight Chance Rain Showers
|
82°F |
5 to 10 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Washington.