Hilmar-Irwin, CA Weather & Growing Conditions
Tonight
55°F
Mostly Clear
Mostly clear. Low around 55, with temperatures rising to around 57 overnight. Northeast wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 55°F | Mostly Clear | 0 to 5 mph NE | 0% |
| Saturday | 89°F | Sunny | 0 to 5 mph NNW | 0% |
| Saturday Night | 58°F | Partly Cloudy | 0 to 5 mph NW | 0% |
| Sunday | 86°F | Partly Sunny | 0 to 5 mph NW | 0% |
| Sunday Night | 57°F | Partly Cloudy | 5 mph NW | 0% |
| Monday | 88°F | Sunny | 5 mph NW | 0% |
| Monday Night | 57°F | Mostly Clear | 0 to 5 mph NW | 0% |
| Tuesday | 89°F | Sunny | 0 to 5 mph NW | 0% |
| Tuesday Night | 59°F | Clear | 0 to 5 mph NW | 0% |
| Wednesday | 93°F | Sunny | 0 to 5 mph NNW | 0% |
| Wednesday Night | 62°F | Mostly Clear | 0 to 5 mph NW | 0% |
| Thursday | 96°F | Sunny | 0 to 5 mph NW | 0% |
| Thursday Night | 63°F | Mostly Clear | 0 to 5 mph WNW | 0% |
| Friday | 93°F | Sunny | 0 to 5 mph NW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Hilmar-Irwin, CA
Last spring frost
Jan 6
First fall frost
Dec 20
Growing season
351 days
Hardiness zone
9a
Explore more for Hilmar-Irwin, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Turlock #2, Ca (8.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.