Sun Valley, ID Weather Forecast
Local 7-day forecast
Snow
Track current conditions, temperature changes, wind, and the full daily outlook for Sun Valley, ID in one place.
Snow. Cloudy, with a high near 34. Southwest wind 6 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Local Weather Overview
This forecast page for Sun Valley, ID 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 14, 2026 8:17 AM MDT.
The active forecast window currently covers Apr 15 to Apr 20, 2026 for Sun Valley, ID.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 15 to Apr 20, 2026
- Latest sync
- Apr 14, 2026 8:17 AM MDT
- Forecast office
- PIH
- Source
- NOAA / NWS
Daily Outlook
This Week in Sun Valley
Sunday looks like the warmest upcoming period in Sun Valley at 47 degrees F.
Thursday Night is the coolest period ahead with temperatures near 14 degrees F.
The strongest winds are forecast for Thursday Night at about 12 to 16 mph NW.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 14, 2026 8:17 AM MDT
- Coverage
- 7 days
- Time zone
- America/Boise
- Forecast office
- PIH
- Radar station
- KSFX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Snow. Mostly cloudy, with a low around 19. West southwest wind 10 to 15 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Snow. Mostly cloudy, with a high near 25. West northwest wind 10 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
A chance of snow before midnight. Partly cloudy, with a low around 14. Chance of precipitation is 30%. New snow accumulation of less than half an inch possible.
A slight chance of snow after noon. Sunny, with a high near 33. Chance of precipitation is 20%.
Mostly clear, with a low around 18.
Sunny, with a high near 38.
Partly cloudy, with a low around 27.
Mostly sunny, with a high near 47.
A slight chance of snow. Mostly cloudy, with a low around 34. Chance of precipitation is 20%.
A chance of snow. Partly sunny, with a high near 47. Chance of precipitation is 40%.
A chance of snow. Mostly cloudy, with a low around 31. Chance of precipitation is 40%. New snow accumulation of less than half an inch possible.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Apr 15
|
Snow
|
34°F |
6 to 14 mph
SW
|
|
Wednesday Night
Apr 15
|
Heavy Snow
|
19°F |
10 to 15 mph
WSW
|
|
Thursday
Apr 16
|
Light Snow
|
25°F |
10 to 15 mph
WNW
|
|
Thursday Night
Apr 16
|
Chance Light Snow then Partly Cloudy
|
14°F |
12 to 16 mph
NW
|
|
Friday
Apr 17
|
Sunny then Slight Chance Light Snow
|
33°F |
7 to 12 mph
NW
|
|
Friday Night
Apr 17
|
Mostly Clear
|
18°F |
6 to 13 mph
NNW
|
|
Saturday
Apr 18
|
Sunny
|
38°F |
3 to 9 mph
E
|
|
Saturday Night
Apr 18
|
Partly Cloudy
|
27°F |
8 mph
S
|
|
Sunday
Apr 19
|
Mostly Sunny
|
47°F |
7 to 13 mph
ESE
|
|
Sunday Night
Apr 19
|
Slight Chance Light Snow
|
34°F |
12 mph
E
|
|
Monday
Apr 20
|
Chance Light Snow
|
47°F |
8 to 13 mph
SW
|
|
Monday Night
Apr 20
|
Chance Light Snow
|
31°F |
8 to 12 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Sun Valley.
