Grand Teton String Lake Forecast Thursday – Friday 24-25 June

  • Short-term forecast, emphasizing weather parameters most important to visitors in the Jenny Lake / String Lake / Leigh Lake region
  • Animations of expected weather radar and expected wind gusts updated daily.
    • Other weather parameters added when they may be significant.
    • For orientation, animation maps show Wyoming and a small portion of the surrounding states.
  • Temperature graphic is for the Airport. Subtract a couple of degrees for String Lake and 3-5 degrees if a visitor asks about Colter Bay.
  • The wind gusts forecasts are usually (in the summer) a reasonable forecast for average sustained wind speeds at 9,000 – 11,000 feet for backcountry hikers.

Showers and a few thunderstorms likely Thursday & Friday

Thursday: Variable cloudiness. Afternoon and evening showers likely; a thunderstorm is possible. Highs in the mid 70’s. Wind gusts 12-16 mph except higher near thunderstorms. Heavier rains to the south and east of the Park.

Friday: Variable cloudiness with morning valley fog. Shower and thunderstorms likely after 11 a.m.. Highs in the mid 70’s. Winds generally light expect gusts to 40 mph near thunderstorms.

Extended Outlook:

Saturday and Sunday: Mostly sunny and warmer. High in the low 80’s on Saturday and mid-80’s Sunday.

Outlook for the following week: Very warm and dry starting Monday, with high temperatures 85-90 deg F.

Wind and radar graphics will be updated whenever there is sufficient bandwidth to upload the products

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