Tennant, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Tennant, a community in Siskiyou County, California.
Today
95°F
Patchy Smoke
Patchy smoke before 1pm. Sunny. High near 95, with temperatures falling to around 93 in the afternoon. North northwest wind 1 to 6 mph.
7-day forecast for Tennant
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 95°F | Patchy Smoke | 1 to 6 mph NNW | 0% |
| Tonight | 58°F | Mostly Clear then Patchy Smoke | 0 to 6 mph SW | 0% |
| Wednesday | 94°F | Sunny | 2 to 13 mph S | 0% |
| Wednesday Night | 57°F | Clear | 1 to 13 mph SSW | 0% |
| Thursday | 94°F | Sunny | 1 to 6 mph S | 1% |
| Thursday Night | 57°F | Clear | 1 to 6 mph SSW | 1% |
| Friday | 94°F | Sunny | 3 mph SSW | 1% |
| Friday Night | 57°F | Clear | 0 to 3 mph WNW | 0% |
| Saturday | 92°F | Sunny | 0 to 6 mph NW | 0% |
| Saturday Night | 54°F | Clear | 1 to 6 mph NW | 0% |
| Sunday | 89°F | Sunny | 1 to 6 mph NNW | 1% |
| Sunday Night | 51°F | Mostly Clear | 0 to 6 mph WNW | 0% |
| Monday | 87°F | Sunny | 0 to 6 mph S | 1% |
| Monday Night | 49°F | Mostly Clear | 0 to 6 mph WSW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Tennant (41.579, -121.917). Updated through the day.
Growing snapshot for Tennant
Last spring frost
Jun 6
First fall frost
Sep 28
Growing season
113 days
Hardiness zone
6b
More local growing data for Tennant: nearby ZIP 96058 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Carrick
Castella
Dorris
Dunsmuir
Edgewood
Etna
Fort Jones
Gazelle
Greenview
Grenada
Happy Camp
Hornbrook
Lake Shastina
Macdoel
McCloud
Montague
Mount Hebron
Mount Shasta
Weed
Yreka
Climate data from the nearest NOAA station, Lava Beds Nat Mon, Ca (21 mi from Tennant). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.