Muscoy, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Muscoy, a community in San Bernardino County, California.
Tonight
52°F
Mostly Clear
Mostly clear, with a low around 52. East wind 0 to 5 mph.
7-day forecast for Muscoy
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Mostly Clear | 0 to 5 mph E | 0% |
| Wednesday | 73°F | Sunny | 0 to 5 mph S | 0% |
| Wednesday Night | 55°F | Mostly Clear | 5 mph N | 0% |
| Thursday | 77°F | Sunny | 0 to 5 mph N | 0% |
| Thursday Night | 58°F | Mostly Clear | 5 to 15 mph N | 0% |
| Friday | 79°F | Sunny | 5 to 10 mph N | 0% |
| Friday Night | 59°F | Clear | 5 to 20 mph N | 0% |
| Saturday | 81°F | Sunny | 5 to 10 mph N | 0% |
| Saturday Night | 59°F | Mostly Clear | 5 to 15 mph N | 0% |
| Sunday | 82°F | Sunny | 0 to 10 mph N | 0% |
| Sunday Night | 61°F | Partly Cloudy | 0 to 15 mph N | 0% |
| Monday | 80°F | Mostly Sunny | 0 to 5 mph NE | 0% |
| Monday Night | 60°F | Partly Cloudy | 0 to 5 mph NE | 1% |
| Tuesday | 78°F | Mostly Sunny | 0 mph | 2% |
Forecast source: National Weather Service (api.weather.gov) for Muscoy (34.155, -117.348). Updated through the day.
Growing snapshot for Muscoy
Last spring frost
Jan 27
First fall frost
Dec 19
Growing season
329 days
Hardiness zone
10a
More local growing data for Muscoy: nearby ZIP 92411 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Redlands, Ca (9.6 mi from Muscoy). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.