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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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.