Union Gap, WA Weather Forecast
Local 7-day forecast
Chance Light Rain
Track current conditions, temperature changes, wind, and the full daily outlook for Union Gap, WA in one place.
A chance of rain before 5pm. Mostly cloudy, with a high near 61. Chance of precipitation is 30%.
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: Apr 9, 2026 12:44 PM PDT.
The active forecast window currently covers Apr 12 to Apr 15, 2026 for Union Gap, WA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 12 to Apr 15, 2026
- Latest sync
- Apr 9, 2026 12:44 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 63 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 35 degrees F.
The strongest winds are forecast for Wednesday at about 7 to 14 mph SW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 9, 2026 12:44 PM PDT
- Coverage
- 5 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 cloudy, with a low around 41.
Mostly sunny, with a high near 63.
Partly cloudy, with a low around 37.
Partly sunny, with a high near 61.
A slight chance of rain after 5am. Mostly cloudy, with a low around 40.
A slight chance of rain before 5pm. Partly sunny, with a high near 59.
Partly cloudy, with a low around 35.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Apr 12
|
Chance Light Rain
|
61°F |
7 to 12 mph
NW
|
|
Sunday Night
Apr 12
|
Mostly Cloudy
|
41°F |
7 to 12 mph
NW
|
|
Monday
Apr 13
|
Mostly Sunny
|
63°F |
7 to 13 mph
W
|
|
Monday Night
Apr 13
|
Partly Cloudy
|
37°F |
5 to 13 mph
NW
|
|
Tuesday
Apr 14
|
Partly Sunny
|
61°F |
5 to 12 mph
W
|
|
Tuesday Night
Apr 14
|
Mostly Cloudy then Slight Chance Light Rain
|
40°F |
7 to 12 mph
W
|
|
Wednesday
Apr 15
|
Slight Chance Light Rain
|
59°F |
7 to 14 mph
SW
|
|
Wednesday Night
Apr 15
|
Partly Cloudy
|
35°F |
5 to 14 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Union Gap.