Union Gap, WA Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Union Gap, WA in one place.
Mostly sunny, with a high near 76. West wind 8 to 13 mph, with gusts as high as 21 mph.
Local Weather Overview
This forecast page for Union Gap, WA 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: Aug 27, 2026 7:13 PM PDT.
The active forecast window currently covers Aug 29 to Sep 2, 2026 for Union Gap, WA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 29 to Sep 2, 2026
- Latest sync
- Aug 27, 2026 7:13 PM PDT
- Forecast office
- PDT
- Source
- NOAA / NWS
Daily Outlook
This Week in Union Gap
Monday looks like the warmest upcoming period in Union Gap at 82 degrees F.
Saturday Night is the coolest period ahead with temperatures near 49 degrees F.
The strongest winds are forecast for Saturday at about 8 to 13 mph W.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 27, 2026 7:13 PM PDT
- Coverage
- 6 days
- Time zone
- America/Los_Angeles
- Forecast office
- PDT
- Radar station
- KPDT
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 49.
Sunny, with a high near 77.
Mostly clear, with a low around 52.
Mostly sunny, with a high near 82.
Partly cloudy, with a low around 55.
Mostly sunny, with a high near 81.
A slight chance of rain showers after 5am. Partly cloudy, with a low around 52.
A chance of rain showers. Partly sunny, with a high near 75.
A chance of rain showers. Partly cloudy, with a low around 50.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Mostly Sunny
|
76°F |
8 to 13 mph
W
|
|
Saturday Night
Aug 29
|
Mostly Clear
|
49°F |
5 to 13 mph
NW
|
|
Sunday
Aug 30
|
Sunny
|
77°F |
2 to 6 mph
SW
|
|
Sunday Night
Aug 30
|
Mostly Clear
|
52°F |
5 mph
N
|
|
Monday
Aug 31
|
Mostly Sunny
|
82°F |
2 to 6 mph
E
|
|
Monday Night
Aug 31
|
Partly Cloudy
|
55°F |
3 to 7 mph
NW
|
|
Tuesday
Sep 1
|
Mostly Sunny
|
81°F |
3 to 12 mph
W
|
|
Tuesday Night
Sep 1
|
Partly Cloudy then Slight Chance Rain Showers
|
52°F |
5 to 12 mph
W
|
|
Wednesday
Sep 2
|
Chance Rain Showers
|
75°F |
5 to 13 mph
SW
|
|
Wednesday Night
Sep 2
|
Chance Rain Showers
|
50°F |
2 to 13 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Union Gap.