Muscoy, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Muscoy, a community in San Bernardino County, California.
Overnight
70°F
Mostly Clear
Mostly clear, with a low around 70. Northeast wind around 0 mph.
7-day forecast for Muscoy
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 70°F | Mostly Clear | 0 mph | 0% |
| Tuesday | 99°F | Sunny | 0 to 10 mph S | 0% |
| Tuesday Night | 70°F | Mostly Clear | 0 to 10 mph S | 0% |
| Wednesday | 97°F | Sunny | 0 to 10 mph S | 0% |
| Wednesday Night | 70°F | Mostly Clear | 0 to 10 mph SW | 0% |
| Thursday | 100°F | Sunny | 0 to 10 mph SW | 3% |
| Thursday Night | 71°F | Mostly Clear | 0 to 10 mph W | 3% |
| Friday | 100°F | Sunny | 0 to 10 mph SW | 0% |
| Friday Night | 72°F | Mostly Clear | 0 to 10 mph SW | 0% |
| Saturday | 102°F | Sunny | 0 to 10 mph SW | 1% |
| Saturday Night | 72°F | Mostly Clear | 0 to 10 mph SW | 1% |
| Sunday | 101°F | Sunny | 0 to 10 mph SW | 2% |
| Sunday Night | 71°F | Mostly Clear | 0 to 10 mph SW | 1% |
| Monday | 96°F | Sunny | 0 to 10 mph SW | 4% |
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 Aug 4, 2026.