Grand Teton String Lake Forecast Wednesday – Thursday 2-3 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 Coulter 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.

— Wednesday will be noticeably warmer with highs in the mid to upper 70’s. Remaining sunny and dry with light to moderate breezes.

— Thursday will feel more like mid-Summer, with highs in the low to mid 80’s. Sunny and light to moderate breeze. It will feel quite hot in the parking lots and near the trailer. There may be some isolated afternoon showers and thunderstorm well to the east and northeast of Grand Teton (northern Yellowstone and over the Absaroka Range).

— Friday will likely be the hottest day of this mini-heat wave. Temperatures in the mid to upper 80’s. Slight chance of afternoon showers. Noticeably breezier Friday afternoon with some gusts 20-25 mph.

— Extended outlook. Remaining warm through Monday although the weekend and Monday should be slightly cooler than this coming Thursday and Friday. Chance of afternoon showers each day. Strong, gusty winds Saturday and Sunday afternoon with gusts up to 30 mph. Leigh Lake will likely have a chop making for challenging afternoon conditions for canoes, kayaks and SUP’s.

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