| National Weather Service Forecast for:
Donner Summit CA Issued by: National Weather Service Sacramento, CA |
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| Updated: 11:31 pm PDT Aug 19, 2026 | ||||||||||||||||||
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| Overnight |
Mostly clear, with a low around 50. Light south wind. |
| Thursday |
Mostly sunny, with a high near 78. Southwest wind 3 to 8 mph. Winds could gust as high as 21 mph. |
| Thursday Night |
Increasing clouds, with a low around 52. Light and variable wind. |
| Friday |
Mostly cloudy, with a high near 75. Light south wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 24 mph. |
| Friday Night |
Partly cloudy, with a low around 50. South wind 5 to 8 mph, with gusts as high as 22 mph. |
| Saturday |
Sunny, with a high near 73. |
| Saturday Night |
Mostly clear, with a low around 47. |
| Sunday |
Sunny, with a high near 73. |
| Sunday Night |
Partly cloudy, with a low around 49. |
| Monday |
Mostly sunny, with a high near 72. |
| Monday Night |
Partly cloudy, with a low around 47. |
| Tuesday |
Mostly sunny, with a high near 73. |
| Tuesday Night |
Partly cloudy, with a low around 47. |
| Wednesday |
Mostly sunny, with a high near 73. |
Forecast from NOAA-NWS for Donner Summit CA.
