Weather WorldGrassmont Reservoir, CA 7-Day Weather Forecast
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Grassmont Reservoir Weather Forecast
Grassmont Reservoir, CA Weather Forecast Date: 1243 AM PDT Sun Aug 30 2026
Weather forecast for Grassmont Reservoir, CA
Today Hi: 92°FHi: 33°C Lo: 65°F Lo: 18°C |
Today... Mostly sunny. Highs 89 to 94. Areas of winds southwest to 10 mph becoming west with gusts to 25 mph this afternoon. |
| Mon Hi: 86°FHi: 30°C Lo: 62°F Lo: 17°C |
Monday... Mostly sunny. Highs 83 to 88 in the western valleys to 86 to 91 near the foothills. Areas of winds west to 10 mph... Becoming 10 to 15 mph with gusts to 25 mph in the afternoon. |
Tue Hi: 89°FHi: 32°C Lo: 64°F Lo: 18°C |
Tuesday... Partly cloudy with patchy fog in the morning... Becoming mostly sunny. Highs 86 to 91. Light winds becoming west 10 to 15 mph in the afternoon. |
Wed Hi: 89°FHi: 32°C Lo: 63°F Lo: 17°C |
Wednesday... Partly cloudy. Highs 86 to 91. |
| Thu Hi: 89°FHi: 32°C Lo: 64°F Lo: 18°C |
Thursday... Partly cloudy in the morning...Becoming mostly sunny. Highs 86 to 91. |
| Fri Hi: 88°FHi: 31°C Lo: 67°F Lo: 19°C |
Friday... Partly cloudy in the morning...Becoming mostly sunny. Highs 85 to 90 in the western valleys to 88 to 93 near the foothills. |
Sat Hi: 91°FHi: 33°C |
Saturday... Partly cloudy. A slight chance of showers in the afternoon. Highs 88 to 93. |
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