Montalvin Manor, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Montalvin Manor, a community in Contra Costa County, California.
Today
65°F
Sunny
Sunny. High near 65, with temperatures falling to around 63 in the afternoon. Northwest wind 3 to 8 mph.
7-day forecast for Montalvin Manor
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 65°F | Sunny | 3 to 8 mph NW | 1% |
| Tonight | 50°F | Mostly Cloudy | 3 to 8 mph NW | 1% |
| Thursday | 68°F | Sunny | 3 mph WSW | 0% |
| Thursday Night | 51°F | Mostly Clear then Patchy Fog | 3 mph W | 0% |
| Friday | 68°F | Patchy Fog then Mostly Sunny | 2 mph NNE | 0% |
| Friday Night | 51°F | Mostly Clear | 2 mph NNE | 0% |
| Saturday | 69°F | Sunny | 0 to 8 mph NNE | 0% |
| Saturday Night | 52°F | Mostly Clear | 2 mph NW | 0% |
| Sunday | 69°F | Patchy Fog then Mostly Sunny | 0 to 5 mph NNW | 0% |
| Sunday Night | 53°F | Partly Cloudy then Patchy Fog | 2 mph WSW | 0% |
| Monday | 68°F | Patchy Fog then Mostly Sunny | 0 to 3 mph W | 0% |
| Monday Night | 52°F | Partly Cloudy then Patchy Fog | 2 mph WSW | 1% |
| Tuesday | 69°F | Patchy Fog then Mostly Sunny | 2 mph NW | 1% |
| Tuesday Night | 54°F | Partly Cloudy | 0 to 3 mph SW | 9% |
Forecast source: National Weather Service (api.weather.gov) for Montalvin Manor (37.998, -122.330). Updated through the day.
Growing snapshot for Montalvin Manor
Last spring frost
Jan 4
First fall frost
Jan 2
Growing season
365 days
Hardiness zone
10a
More local growing data for Montalvin Manor: nearby ZIP 94806 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Richmond, Ca (4.7 mi from Montalvin Manor). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.