Fremont, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fremont, a city in Alameda County, California.
Today
89°F
Sunny
Sunny. High near 89, with temperatures falling to around 87 in the afternoon. West wind 2 to 9 mph.
7-day forecast for Fremont
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 89°F | Sunny | 2 to 9 mph W | 0% |
| Tonight | 60°F | Mostly Clear | 1 to 8 mph W | 0% |
| Wednesday | 88°F | Sunny | 1 to 8 mph W | 0% |
| Wednesday Night | 60°F | Mostly Clear | 1 to 8 mph WNW | 0% |
| Thursday | 86°F | Sunny | 1 to 8 mph W | 0% |
| Thursday Night | 61°F | Mostly Clear | 2 to 8 mph WNW | 0% |
| Friday | 90°F | Sunny | 2 to 9 mph WNW | 0% |
| Friday Night | 63°F | Mostly Clear | 2 to 9 mph W | 0% |
| Saturday | 88°F | Sunny | 2 to 9 mph W | 0% |
| Saturday Night | 64°F | Mostly Clear | 3 to 9 mph W | 0% |
| Sunday | 84°F | Sunny | 3 to 9 mph W | 0% |
| Sunday Night | 60°F | Mostly Clear | 5 to 9 mph W | 0% |
| Monday | 80°F | Sunny | 5 to 10 mph WSW | 0% |
| Monday Night | 58°F | Mostly Clear | 5 to 10 mph WSW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Fremont (37.494, -121.941). Updated through the day.
Growing snapshot for Fremont
Last spring frost
Jan 1
First fall frost
Dec 27
Growing season
365 days
Hardiness zone
10a
More local growing data for Fremont: nearby ZIP 94538 weather · frost dates · planting calendar · California frost dates
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Union City
Climate data from the nearest NOAA station, Newark, Ca (4.3 mi from Fremont). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.