Round Top Weather Forecast

    • 43
    • 62

    Rain Showers Likely

    • 42
    • 47

    Rain Showers Likely

    • 41
    • 54

    Chance Rain Showers

    • 44
    • 57

    Mostly Sunny

    • 46
    • 62

    Mostly Sunny

    • 43
    • 59

    Chance Rain Showers

Today 18 Sep West Slope Northern Sierra Nevada

Mostly cloudy. At higher Elevations, a slight chance of rain Showers late in the afternoon. Highs 66 to 81 higher Elevations. 77 to 89 lower Elevations. Prevailing east Winds up to 10 Mph shifting to the southwest in the afternoon.

Tonight 18 Sep West Slope Northern Sierra Nevada

Cloudy with a chance of rain Showers. Cooler. Lows 42 to 57 higher Elevations. 51 to 63 lower Elevations. Light Winds.

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Round Top Temperature Statistics

September Temperature

South Lake Tahoe, Lake Tahoe Airport (16.2 miles)

  • Lowest 11 September, 2025

    33.1 °F
  • Average September

    57.6 °F
  • Highest 1 September, 2025

    81 °F

Climate (2020–Present)

South Lake Tahoe, Lake Tahoe Airport (16.2 miles)

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  • Average Low 2020–2025

    31.2 °F
  • Average 2020–2025

    45.8 °F
  • Average High 2020–2025

    59.6 °F
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