Bloomfield, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bloomfield, a community in Sonoma County, California.
Today
80°F
Patchy Fog then Sunny
Patchy fog before 9am. Sunny. High near 80, with temperatures falling to around 73 in the afternoon. West southwest wind 1 to 10 mph, with gusts as high as 18 mph.
7-day forecast for Bloomfield
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 80°F | Patchy Fog then Sunny | 1 to 10 mph WSW | 1% |
| Tonight | 50°F | Areas Of Fog | 0 to 7 mph SW | 1% |
| Wednesday | 77°F | Areas Of Fog then Mostly Sunny | 0 to 10 mph SW | 0% |
| Wednesday Night | 50°F | Areas Of Fog | 0 to 8 mph WNW | 0% |
| Thursday | 75°F | Areas Of Fog then Mostly Sunny | 0 to 10 mph W | 0% |
| Thursday Night | 49°F | Partly Cloudy then Areas Of Fog | 0 to 9 mph NW | 0% |
| Friday | 82°F | Areas Of Fog then Mostly Sunny | 0 to 10 mph W | 0% |
| Friday Night | 51°F | Areas Of Fog | 0 to 10 mph WSW | 0% |
| Saturday | 81°F | Patchy Fog then Sunny | 0 to 10 mph W | 0% |
| Saturday Night | 54°F | Mostly Clear | 3 to 10 mph W | 0% |
| Sunday | 81°F | Patchy Fog then Sunny | 2 to 12 mph WSW | 0% |
| Sunday Night | 52°F | Mostly Clear then Patchy Fog | 2 to 12 mph WSW | 0% |
| Monday | 75°F | Patchy Fog then Sunny | 2 to 12 mph SW | 0% |
| Monday Night | 50°F | Partly Cloudy | 1 to 10 mph WSW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Bloomfield (38.322, -122.834). Updated through the day.
Growing snapshot for Bloomfield
Last spring frost
Mar 20
First fall frost
Nov 13
Growing season
240 days
Hardiness zone
9a
More local growing data for Bloomfield: nearby ZIP 95472 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Graton, Ca (2.2 mi from Bloomfield). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.