Johnstonville, CA Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Johnstonville, CA in one place.
Sunny, with a high near 73. Northeast wind 0 to 10 mph, with gusts as high as 25 mph.
Local Weather Overview
This forecast page for Johnstonville, CA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Oct 14, 2026 12:15 AM PDT.
The active forecast window currently covers Oct 15 to Oct 20, 2026 for Johnstonville, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 15 to Oct 20, 2026
- Latest sync
- Oct 14, 2026 12:15 AM PDT
- Forecast office
- REV
- Source
- NOAA / NWS
Daily Outlook
This Week in Johnstonville
Saturday looks like the warmest upcoming period in Johnstonville at 77 degrees F.
Monday Night is the coolest period ahead with temperatures near 32 degrees F.
The strongest winds are forecast for Monday at about 0 to 15 mph SW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 14, 2026 12:15 AM PDT
- Coverage
- 6 days
- Time zone
- America/Los_Angeles
- Forecast office
- REV
- Radar station
- KRGX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Clear, with a low around 40. East wind 0 to 10 mph, with gusts as high as 20 mph.
Sunny, with a high near 76. East wind 0 to 10 mph, with gusts as high as 20 mph.
Clear, with a low around 38.
Sunny, with a high near 77.
Mostly clear, with a low around 37.
Sunny, with a high near 75.
Mostly clear, with a low around 37.
A chance of rain showers after 5pm. Mostly sunny, with a high near 62.
A chance of rain showers before 11pm, then a chance of rain and snow showers. Mostly cloudy, with a low around 32.
A chance of rain and snow showers. Mostly sunny, with a high near 54.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Oct 15
|
Sunny
|
73°F |
0 to 10 mph
NE
|
|
Thursday Night
Oct 15
|
Clear
|
40°F |
0 to 10 mph
E
|
|
Friday
Oct 16
|
Sunny
|
76°F |
0 to 10 mph
E
|
|
Friday Night
Oct 16
|
Clear
|
38°F |
0 to 5 mph
NE
|
|
Saturday
Oct 17
|
Sunny
|
77°F |
0 to 5 mph
SW
|
|
Saturday Night
Oct 17
|
Mostly Clear
|
37°F |
0 to 5 mph
W
|
|
Sunday
Oct 18
|
Sunny
|
75°F |
0 to 10 mph
SW
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
37°F |
0 to 10 mph
SW
|
|
Monday
Oct 19
|
Mostly Sunny then Chance Rain Showers
|
62°F |
0 to 15 mph
SW
|
|
Monday Night
Oct 19
|
Chance Rain And Snow Showers
|
32°F |
5 to 10 mph
W
|
|
Tuesday
Oct 20
|
Chance Rain And Snow Showers
|
54°F |
5 to 10 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Johnstonville.