Live Weather & Forecast
Weather in Sun Valley
California, United States · Real-time conditions & 3-day outlook
11°C
Feels like 7°C
51°F / Feels 45°F
Overcast
Sun Valley, California
🌞 Daytime
Updated: 2026-04-18 10:45
Humidity
89%
Wind
28.8 km/h N
Wind Gust
40.8 km/h
Pressure
1019 mb
Visibility
16 km
UV Index
1.3
(Low)
Precipitation
0 mm
Cloud Cover
100%
Dew Point
9.8°C
Wind Degree
358°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
152.9 μg/m³
NO₂
1.6 μg/m³
O₃
98 μg/m³
SO₂
1.4 μg/m³
PM 2.5
5.1 μg/m³
PM 10
6 μg/m³
Today's Hourly Forecast
24-hour breakdown for Sun Valley, California
12 AM
23°
Clear
1 AM
23°
Partly Cloudy
2 AM
22°
Clear
3 AM
20°
Clear
4 AM
19°
Light rain
5 AM
17°
Moderate rain
6 AM
15°
Moderate rain
7 AM
14°
Light rain
8 AM
13°
Patchy rain nearby
9 AM
13°
Sunny
10 AM
11°
Overcast
11 AM
14°
Patchy rain nearby
12 PM
15°
Patchy rain nearby
1 PM
16°
Patchy rain nearby
2 PM
17°
Sunny
3 PM
18°
Sunny
4 PM
18°
Sunny
5 PM
18°
Sunny
6 PM
17°
Sunny
7 PM
15°
Sunny
8 PM
13°
Clear
9 PM
12°
Clear
10 PM
11°
Clear
11 PM
10°
Clear
3-Day Forecast
Daily overview for Sun Valley, California
Today
Moderate rain
19°
/
10°
🌧️ 89% chance of rain
💧 Avg. humidity: 72%
💨 Max wind: 29.2 km/h
🌧️ Total precip: 15.96 mm
☀️ UV Index: 5.6
🌅 Sunrise: 06:47 AM
🌇 Sunset: 07:55 PM
🌙 Waxing Crescent
🌑 Moon: 1% lit
Sun, Apr 19
Sunny
21°
/
6°
🌧️ 0% chance of rain
💧 Avg. humidity: 52%
💨 Max wind: 10.4 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 8.8
🌅 Sunrise: 06:46 AM
🌇 Sunset: 07:56 PM
🌙 Waxing Crescent
🌑 Moon: 3% lit
Mon, Apr 20
Partly Cloudy
21°
/
9°
🌧️ 0% chance of rain
💧 Avg. humidity: 53%
💨 Max wind: 18.4 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 7.6
🌅 Sunrise: 06:45 AM
🌇 Sunset: 07:57 PM
🌙 Waxing Crescent
🌑 Moon: 9% lit
Best Time to Visit Sun Valley
Plan your trip to Sun Valley, 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 Sun Valley?
Current conditions in Sun Valley: Overcast, temperature 11°C, humidity 89%.
What is the best time to visit Sun Valley?
The best time to visit Sun Valley is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Sun Valley?
Sun Valley is located at approximately 33.7° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Sun Valley?
The wettest period in Sun Valley is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Sun Valley?
For visits to Sun Valley during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Sun Valley in?
Sun Valley is located in United States, in the state of California.
What are the public holidays in Sun Valley in 2026?
View the 2026 public holidays for Sun Valley on our Holidays page.
What are the GPS coordinates used for the weather forecast in Sun Valley?
The weather forecast for Sun Valley uses coordinates 33.6702, -95.4285.