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 63. Southwest wind 1 to 5 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: Oct 12, 2026 1:00 AM PDT.
The active forecast window currently covers Oct 13 to Oct 18, 2026 for Union Gap, WA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 13 to Oct 18, 2026
- Latest sync
- Oct 12, 2026 1:00 AM PDT
- Forecast office
- PDT
- Source
- NOAA / NWS
Daily Outlook
This Week in Union Gap
Saturday looks like the warmest upcoming period in Union Gap at 70 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 40 degrees F.
The strongest winds are forecast for Saturday at about 3 to 7 mph W.
The forecast from Oct 13 through Oct 18 stays mostly dry.
Forecast Details
- Last updated
- Oct 12, 2026 1:00 AM 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
Partly cloudy, with a low around 40. Northwest wind around 3 mph.
Sunny, with a high near 68.
Mostly clear, with a low around 43.
Sunny, with a high near 68.
Mostly clear, with a low around 42.
Sunny, with a high near 69.
Partly cloudy, with a low around 44.
Mostly sunny, with a high near 70.
Partly cloudy, with a low around 41.
Mostly sunny, with a high near 65.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Oct 13
|
Mostly Sunny
|
63°F |
1 to 5 mph
SW
|
|
Tuesday Night
Oct 13
|
Partly Cloudy
|
40°F |
3 mph
NW
|
|
Wednesday
Oct 14
|
Sunny
|
68°F |
5 mph
S
|
|
Wednesday Night
Oct 14
|
Mostly Clear
|
43°F |
3 mph
N
|
|
Thursday
Oct 15
|
Sunny
|
68°F |
3 mph
NE
|
|
Thursday Night
Oct 15
|
Mostly Clear
|
42°F |
3 mph
N
|
|
Friday
Oct 16
|
Sunny
|
69°F |
1 to 5 mph
E
|
|
Friday Night
Oct 16
|
Partly Cloudy
|
44°F |
3 mph
SW
|
|
Saturday
Oct 17
|
Mostly Sunny
|
70°F |
3 to 7 mph
W
|
|
Saturday Night
Oct 17
|
Partly Cloudy
|
41°F |
7 mph
NW
|
|
Sunday
Oct 18
|
Mostly Sunny
|
65°F |
2 to 6 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Union Gap.