McSwain, CA Weather & Growing Conditions
Today
90°F
Sunny
Sunny, with a high near 90. Northwest wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 90°F | Sunny | 0 to 5 mph NW | 0% |
| Tonight | 57°F | Partly Cloudy | 0 to 5 mph NW | 0% |
| Sunday | 88°F | Mostly Cloudy | 0 to 10 mph NW | 0% |
| Sunday Night | 57°F | Mostly Cloudy | 5 to 10 mph NW | 1% |
| Monday | 89°F | Mostly Sunny | 5 mph NW | 1% |
| Monday Night | 55°F | Mostly Clear | 5 mph WNW | 0% |
| Tuesday | 90°F | Sunny | 5 mph NW | 0% |
| Tuesday Night | 57°F | Mostly Clear | 0 to 5 mph NW | 0% |
| Wednesday | 94°F | Sunny | 0 to 5 mph NW | 0% |
| Wednesday Night | 61°F | Mostly Clear | 0 to 5 mph NW | 0% |
| Thursday | 97°F | Sunny | 0 to 5 mph NW | 0% |
| Thursday Night | 61°F | Mostly Clear | 0 to 5 mph WNW | 1% |
| Friday | 93°F | Sunny | 0 to 5 mph WNW | 0% |
| Friday Night | 58°F | Mostly Clear | 5 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for McSwain, CA
Last spring frost
Mar 3
First fall frost
Nov 24
Growing season
263 days
Hardiness zone
9a
Explore more for McSwain, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Merced, Ca (7.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.