Harman US

Klamath, CA Weather & Growing Conditions

Tonight
50°F
Patchy Fog
Patchy fog after 11pm. Mostly cloudy, with a low around 50. Northeast wind 1 to 9 mph.

7-day forecast

WhenTempForecastWindPrecip
Tonight 50°F Patchy Fog 1 to 9 mph NE 0%
Saturday 64°F Patchy Fog then Partly Sunny 1 to 7 mph NW 1%
Saturday Night 50°F Areas Of Fog 0 to 6 mph ENE 1%
Sunday 64°F Areas Of Fog then Mostly Cloudy 0 to 5 mph NNW 0%
Sunday Night 51°F Areas Of Fog 0 to 5 mph W 0%
Monday 66°F Areas Of Fog then Mostly Sunny 0 to 6 mph NW 0%
Monday Night 51°F Patchy Fog 1 to 6 mph NNE 0%
Tuesday 67°F Patchy Fog then Mostly Sunny 1 to 7 mph N 0%
Tuesday Night 50°F Partly Cloudy then Patchy Fog 1 to 7 mph N 0%
Wednesday 69°F Patchy Fog then Mostly Sunny 1 to 6 mph NNE 0%
Wednesday Night 53°F Partly Cloudy 1 to 6 mph NE 0%
Thursday 68°F Mostly Sunny 0 to 3 mph NW 2%
Thursday Night 52°F Mostly Cloudy 3 mph WSW 9%
Friday 66°F Partly Sunny 2 to 6 mph NNW 9%

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

Growing snapshot for Klamath, CA

Last spring frost
Mar 16
First fall frost
Nov 20
Growing season
252 days
Hardiness zone
9b

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

Climate data from the nearest NOAA station, Klamath, Ca (1.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.