Merced Lake Weather Forecast
- 45
- 65
Slight Chance Thunderstorms
- 46
- 67
Slight Chance Thunderstorms
- 47
- 66
Mostly Sunny
- 50
- 69
Mostly Sunny
- 50
- 71
Mostly Sunny
- 48
- 71
Mostly Sunny
- 47
- 70
Mostly Sunny
Today 27 Aug Yosemite NP outside of the valley
Mostly sunny. Slight chance of rain early in the Morning, then chance of rain Showers and slight chance of Thunderstorms in the late morning and early afternoon. Chance of Thunderstorms late in the afternoon. Highs 57 to 73. South Winds up to 10 Mph shifting to the southwest in the afternoon. Chance of precipitation 50 percent.
Tonight 27 Aug Yosemite NP outside of the valley
Mostly clear. Slight chance of Thunderstorms early in the Evening, then slight chance of rain late in the evening. Lows 38 to 54. East Winds up to 10 Mph. Chance of precipitation 20 percent.
Merced Lake Temperature Statistics
August Temperature
Mammoth Yosemite Airport (31.7 miles)
Lowest 5 August, 2025
39.2 °FAverage August
66.1 °FHighest 10 August, 2025
87.8 °F
Climate (2020–Present)
Mammoth Yosemite Airport (31.7 miles)
Average Low 2020–2025
29.7 °FAverage 2020–2025
46.3 °FAverage High 2020–2025
61.1 °F