Kernville, California Weather
Ceanothus blooms again. Day 93 of summer. Read this microseason across nine climate regions →
Kernville weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 7:25 AM PDT · Open-Meteo
- TodaySep 21Clear——85°57°—
- TuesdaySep 22Clear——86°59°+1°
- WednesdaySep 23Clear——90°58°+4°
- ThursdaySep 24Overcast——92°62°+2°
- FridaySep 25Overcast——89°57°-3°
- SaturdaySep 26Overcast——91°57°+2°
- SundaySep 27Partly Cloudy——84°55°-7°
Air quality now AQI 26 · Good
AQI 26 (Good), driven by PM2.5. AQI projected to climb to 57 over the next 6 hours. PM2.5 at 7.3 µg/m³, PM10 at 17.9 µg/m³ — typical background levels with no transport signature.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 7 PM.
What's driving it
PM × Wind × Precip
PM2.5 at 7.3 µg/m³, PM10 at 17.9 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.41
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- background
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
September dries up ditches or breaks down bridges.
- Moonrise
- 4:17 PM
- Moonset
- 1:33 AM
- In sign
- ♑︎ Capricorn
Ceanothus blooms again
Read this microseason across nine climate regions →
All 72 microseasons on the year wheel →
Kernville at a glance
- Today vs. normal: Today averages 71°F (high 85°F, low 57°F), about the 72°F normal for Sep 21
- Last frost: April 7 (1991–2020 median, NOAA station 3 km away)
- Microseason: Sep 21–25
- Planting calendar: September — harvest tomatoes, peppers, beans, summer squash, winter squash
16-Day Forecast — Kernville
- Mon85°57°3%
- Tue86°59°2%
- Wed90°58°3%
- Thu92°62°2%
- Fri89°57°1%
- Sat91°57°2%
- Sun84°55°1%
- Mon88°52°1%
- Tue95°56°5%
- Wed97°60°11%
- Thu98°66°5%
- Fri96°67°9%
- Sat96°66°13%
- Sun98°67°6%
- Mon92°65°6%
- Tue92°61°10%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Late season
As of September 21, the first frost (around November 11) is about 7 weeks away. Frost-tender plants keep producing until then. This city's planting calendar for September: harvest tomatoes, peppers, beans, summer squash, and winter squash.
SPC Convective Outlook
Storm Prediction Center — Kernville
SPC includes Kernville in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWNONENo severe risk
- DAY 3NONENo severe risk
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook.
Sun & seasons in Kernville
Kernville sits in Kern County, where the year’s longest day runs 14h 35m of daylight and its shortest just 9h 44m — a swing of +4h 51m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
Los Angeles, the state’s largest city, lies about 113 miles to the S. The nearest town Kernville tracks is Potomac Park, roughly 40 miles to the SW.
Air quality in Kernville
Air quality in Kernville’s county has trended cleaner since 2020; its cleanest year on record was 2023 (median AQI 69).
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| March | lettuce, peas, spinach, radishes | — |
| April | lettuce, peas, spinach, radishes | lettuce, spinach, radishes |
| May | tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, spinach, beans, summer squash, garlic |
| July | tomatoes, peppers, beans, squash | tomatoes, peppers, beans, summer squash, garlic |
| August | tomatoes, peppers, beans, squash, fall brassicas, carrots | tomatoes, peppers, beans, summer squash, winter squash |
| September | — | tomatoes, peppers, beans, summer squash, winter squash |
| October | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash |
| November | — | tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots |
| December | — | fall brassicas, carrots |
A year in weather
The year in Kernville tops out in July (~81°F) and dips lowest in December (~46°F), with February wettest at 2.4 inches and August driest at 0.1 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 46° | 2.3″ | 7 |
| February | 48° | 2.4″ | 8 |
| March | 52° | 1.7″ | 6 |
| April | 56° | 0.7″ | 4 |
| May | 64° | 0.4″ | 2 |
| June | 73° | 0.1″ | 1 |
| July | 81° | 0.1″ | 1 |
| August | 80° | 0.1″ | 1 |
| September | 74° | 0.2″ | 1 |
| October | 64° | 0.6″ | 3 |
| November | 52° | 1.4″ | 3 |
| December | 46° | 1.9″ | 6 |
Regional context
Similar climates Wofford Heights, CA, Alta Sierra, CA, Mountain Mesa, CA
Kernville swings from 46°F in January to 81°F in July (34°F) per NOAA NCEI 1991-2020 normals; precipitation in Kernville runs about 11.8 inches on roughly 43 measurable days.
Cool-season fronts carry Kernville's rain: February logs 2.4 inches on 7.5 days, against August's 0.1 inches on 1.0 — winter does the heavy lifting in Kernville. That groups Kernville with places like Wofford Heights, CA, Alta Sierra, CA and Mountain Mesa, CA on the same cool-season storm track.
Kernville reaches its last hard frost near April 7; that is the cue for lettuce, chard, arugula, and mustard greens. Tomatoes and peppers do best set out two weeks later in Kernville, once nights clear the mid-40s°F. The season ends by November 11 in Kernville, once hard frosts set back in. Open lawns in Kernville whiten first when frost returns.
Similar climates: Wofford Heights, CA, Alta Sierra, CA, Mountain Mesa, CA, Lake Isabella, CA, Squirrel Mountain Valley, CA.
Frequently asked
- When does it freeze in Kernville?
- Frost typically leaves Kernville by April 7 and returns to Kernville near November 11.
- What is the rainy season in Kernville?
- Kernville sees its heaviest rain in February (around 2.4 inches), part of roughly 12 inches a year.
- What is the warmest month in Kernville?
- July is Kernville's warmest month, averaging about 81°F.
- What is the coldest month in Kernville?
- Kernville bottoms out in December, with a mean near 46°F.
- When can I start a vegetable garden in Kernville?
- Time tomatoes in Kernville for two weeks after April 7; peas and greens start at Kernville's frost line.
- How many rainy days does Kernville get?
- Kernville records around 43 days of measurable precipitation annually.
- What hardiness zone is Kernville?
- Kernville sits in the USDA zone set by December lows near 46°F; the USDA ZIP tool gives the band.
- What is the 10-day forecast for Kernville?
- Kernville's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in Kernville?
- See this week's day-by-day rain chances for Kernville in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Kernville?
- Current conditions for Kernville and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Kernville forecast updated?
- The Kernville forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Kernville?
- Today's sunrise and sunset times for Kernville are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for Kernville?
- The next few days in Kernville's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Kernville sits at 35.8°N; its climate zone is hot-summer Mediterranean (Köppen approximation).
ZIP codes in Kernville
- 93238