Live Weather & Forecast
Weather in Union Gap
Washington, United States · Real-time conditions & 3-day outlook
13°C
Feels like 12°C
55°F / Feels 54°F
Sunny
Union Gap, Washington
🌞 Daytime
Updated: 2026-04-13 11:00
Humidity
48%
Wind
7.2 km/h WNW
Wind Gust
8.3 km/h
Pressure
1012 mb
Visibility
16 km
UV Index
3.6
(Moderate)
Precipitation
0 mm
Cloud Cover
0%
Dew Point
2.6°C
Wind Degree
299°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
161.9 μg/m³
NO₂
2.3 μg/m³
O₃
88 μg/m³
SO₂
1 μg/m³
PM 2.5
1.3 μg/m³
PM 10
1.4 μg/m³
Today's Hourly Forecast
24-hour breakdown for Union Gap, Washington
12 AM
10°
Clear
1 AM
10°
Clear
2 AM
9°
Clear
3 AM
9°
Clear
4 AM
10°
Clear
5 AM
10°
Clear
6 AM
9°
Clear
7 AM
10°
Sunny
8 AM
11°
Sunny
9 AM
13°
Sunny
10 AM
14°
Sunny
11 AM
13°
Sunny
12 PM
16°
Cloudy
1 PM
16°
Overcast
2 PM
17°
Overcast
3 PM
17°
Overcast
4 PM
17°
Cloudy
5 PM
16°
Overcast
6 PM
16°
Overcast
7 PM
14°
Sunny
8 PM
12°
Clear
9 PM
10°
Clear
10 PM
8°
Clear
11 PM
7°
Partly Cloudy
3-Day Forecast
Daily overview for Union Gap, Washington
Today
Sunny
17°
/
6°
🌧️ 0% chance of rain
💧 Avg. humidity: 49%
💨 Max wind: 15.5 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.3
🌅 Sunrise: 06:18 AM
🌇 Sunset: 07:48 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Overcast
12°
/
2°
🌧️ 0% chance of rain
💧 Avg. humidity: 67%
💨 Max wind: 28.8 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1
🌅 Sunrise: 06:16 AM
🌇 Sunset: 07:49 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Wed, Apr 15
Partly Cloudy
11°
/
1°
🌧️ 0% chance of rain
💧 Avg. humidity: 55%
💨 Max wind: 27 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1
🌅 Sunrise: 06:14 AM
🌇 Sunset: 07:51 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Best Time to Visit Union Gap
Plan your trip to Union Gap, United States around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Union Gap?
Current conditions in Union Gap: Sunny, temperature 13°C, humidity 48%.
What is the best time to visit Union Gap?
The best time to visit Union Gap is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Union Gap?
Union Gap is located at approximately 46.6° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Union Gap?
The wettest period in Union Gap is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Union Gap?
For visits to Union Gap during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Union Gap in?
Union Gap is located in United States, in the state of Washington.
What are the public holidays in Union Gap in 2026?
View the 2026 public holidays for Union Gap on our Holidays page.
What are the GPS coordinates used for the weather forecast in Union Gap?
The weather forecast for Union Gap uses coordinates 46.5573, -120.4751.