San Miguel, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for San Miguel, a community in San Luis Obispo County, California.
Today
101°F
Sunny
Sunny, with a high near 101. South southwest wind 0 to 10 mph.
7-day forecast for San Miguel
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 101°F | Sunny | 0 to 10 mph SSW | 0% |
| Tonight | 53°F | Mostly Clear | 0 to 10 mph SSW | 0% |
| Wednesday | 101°F | Sunny | 0 to 10 mph SSW | 0% |
| Wednesday Night | 56°F | Mostly Clear | 0 to 5 mph WNW | 0% |
| Thursday | 104°F | Sunny | 0 to 10 mph WSW | 0% |
| Thursday Night | 59°F | Mostly Clear | 0 to 10 mph WSW | 0% |
| Friday | 104°F | Sunny | 0 to 10 mph W | 0% |
| Friday Night | 61°F | Mostly Clear | 0 to 10 mph WNW | 0% |
| Saturday | 105°F | Sunny | 0 to 10 mph WNW | 0% |
| Saturday Night | 61°F | Clear | 0 to 10 mph WNW | 0% |
| Sunday | 101°F | Sunny | 0 to 10 mph W | 0% |
| Sunday Night | 57°F | Mostly Clear | 0 to 10 mph SSW | 0% |
| Monday | 94°F | Sunny | 0 to 10 mph SSW | 0% |
| Monday Night | 54°F | Mostly Clear | 0 to 10 mph SSW | 1% |
Forecast source: National Weather Service (api.weather.gov) for San Miguel (35.753, -120.692). Updated through the day.
Growing snapshot for San Miguel
Last spring frost
Mar 15
First fall frost
Nov 10
Growing season
238 days
Hardiness zone
9a
More local growing data for San Miguel: nearby ZIP 93446 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Paso Robles, Ca (2.8 mi from San Miguel). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.