Harman US

Crestline, CA Weather & Growing Conditions

Today
89°F
Sunny
Sunny, with a high near 89. South wind 10 to 15 mph, with gusts as high as 25 mph.

7-day forecast

WhenTempForecastWindPrecip
Today 89°F Sunny 10 to 15 mph S 0%
Tonight 70°F Clear 10 to 15 mph S 0%
Wednesday 88°F Sunny 10 to 15 mph S 1%
Wednesday Night 70°F Mostly Clear 0 to 15 mph SE 0%
Thursday 89°F Sunny 0 to 10 mph S 4%
Thursday Night 71°F Mostly Clear 0 to 10 mph S 4%
Friday 90°F Sunny 0 to 5 mph S 3%
Friday Night 72°F Mostly Clear 0 to 5 mph S 1%
Saturday 91°F Sunny 0 to 10 mph S 4%
Saturday Night 72°F Mostly Clear 5 to 10 mph S 3%
Sunday 89°F Sunny 5 to 10 mph S 4%
Sunday Night 70°F Mostly Clear 5 to 10 mph S 2%
Monday 85°F Sunny 5 to 10 mph S 8%
Monday Night 67°F Mostly Clear 5 to 10 mph S 3%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Crestline, CA

Last spring frost
May 5
First fall frost
Nov 2
Growing season
176 days
Hardiness zone
8b

Explore more for Crestline, CA: full frost dates · planting calendar · California frost dates

Climate data from the nearest NOAA station, Lake Arrowhead, Ca (5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.