Weather WorldGrant Union School, CA Weather Forecast
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Grant Union School Weather Forecast
| TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY | THURSDAY | FRIDAY |
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| Patchy Fog | Patchy Fog | Patchy Fog | Mostly Cloudy | Mostly Cloudy | Patchy Fog | Patchy Fog | Patchy Fog | Patchy Fog | Patchy Fog |
| Hi: 70°FHi: 21°C | Lo: 54°FLo: 12°C | Hi: 71°FHi: 22°C | Lo: 56°FLo: 13°C | Hi: 72°FHi: 22°C | Hi: 72°FHi: 22°C Lo: 53°FLo: 12°C | Hi: 72°FHi: 22°C Lo: 53°FLo: 12°C | Hi: 72°FHi: 22°C Lo: 53°FLo: 12°C | Hi: 72°FHi: 22°C Lo: 53°FLo: 12°C | Hi: 72°FHi: 22°C Lo: 53°FLo: 12°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 136 AM PDT Sat Aug 22 2026 
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Grant Union School Forecast Discussion
Issued: 1209 AM PDT Sat Aug 22 2026
Key Messages
- Generally mild, seasonable weather is expected for the next week.
Discussion
...The upper low that brought a deep marine layer and upper-level moisture (and the associated high clouds) moves out of the area today and high pressure starts to build in behind it. Marine influence is expected to keep temperatures in the interior moderated with most areas in the 80s to low 90s. 60s and 70s are likely closer to the coast. Stratus along the immediate coast is likely to at least partially clea...