Cowan, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cowan, a community in Stanislaus County, California.
Overnight
67°F
Clear
Clear, with a low around 67. Northwest wind around 3 mph.
7-day forecast for Cowan
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 67°F | Clear | 3 mph NW | 0% |
| Tuesday | 101°F | Sunny | 6 mph NW | 0% |
| Tuesday Night | 66°F | Clear | 5 to 8 mph NNW | 0% |
| Wednesday | 99°F | Sunny | 6 mph NW | 0% |
| Wednesday Night | 65°F | Clear | 7 mph NNW | 0% |
| Thursday | 99°F | Sunny | 5 to 8 mph NW | 0% |
| Thursday Night | 67°F | Clear | 6 to 9 mph NW | 0% |
| Friday | 99°F | Sunny | 6 to 9 mph NW | 0% |
| Friday Night | 69°F | Clear | 5 to 9 mph NW | 0% |
| Saturday | 101°F | Sunny | 5 to 8 mph NW | 0% |
| Saturday Night | 69°F | Clear | 3 to 8 mph NW | 0% |
| Sunday | 100°F | Sunny | 3 to 8 mph NW | 0% |
| Sunday Night | 66°F | Mostly Clear | 3 to 8 mph NW | 0% |
| Monday | 96°F | Sunny | 3 to 7 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Cowan (37.560, -120.989). Updated through the day.
Growing snapshot for Cowan
Last spring frost
Jan 31
First fall frost
Dec 5
Growing season
312 days
Hardiness zone
9b
More local growing data for Cowan: nearby ZIP 95307 weather · frost dates · planting calendar · California frost dates
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Keyes
Modesto
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Climate data from the nearest NOAA station, Modesto City Co Ap, Ca (4.7 mi from Cowan). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.