Detailed hourly weather for Sun Valley

Get Sun Valley weather forecast information, including temperature, snowfall and wind details at the summit and base every three hours throughout the day. Check out this comprehensive Sun Valley weather report first before heading up for the day.
Sunday
8/31
44° F
0"
W
7mph
    • Saturday
      44°F
      40°F
    • Sunday
      54°F
      33°F
    • Monday
      57°F
      30°F
    • Tuesday
      61°F
      33°F
    • Wednesday
      54°F
      32°F
    • Thursday
      54°F
      26°F
    • Friday
      55°F
      37°F
    • Saturday
      62°F
      35°F
    • Sunday
      62°F
      41°F
    • Monday
      61°F
      42°F
Sunday
Aug 31
  • Time
  • Summit | 9146ft.
  • Base | 5748ft.
  • 2:00 am
    0"
    36°F
    NW
    3mph
    0"
    47°F
    NW
    3mph
  • 5:00 am
    0"
    33°F
    NW
    5mph
    0"
    44°F
    NW
    5mph
  • 8:00 am
    0"
    39°F
    NW
    6mph
    0"
    50°F
    NW
    6mph
  • 11:00 am
    0"
    49°F
    NW
    4mph
    0"
    60°F
    NW
    4mph
  • 2:00 pm
    0"
    54°F
    W
    5mph
    0"
    65°F
    W
    5mph
  • 5:00 pm
    0"
    52°F
    W
    7mph
    0"
    64°F
    W
    7mph
  • 8:00 pm
    0"
    40°F
    W
    6mph
    0"
    51°F
    W
    6mph
  • 11:00 pm
    0"
    35°F
    NW
    6mph
    0"
    46°F
    NW
    6mph

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