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Chester, CA Weather
Current conditions
Forecast for this hour (no station report in the last two hours)
Forecast
10-day-
Tonight
Showers and thunderstorms likely before 8pm, then rain. Mostly cloudy. Low around 35, with temperatures rising to around 40 overnight. South wind 0 to 3 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
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Thursday
Rain likely before 11am, then showers and thunderstorms between 11am and 5pm, then rain likely. Mostly cloudy. High near 56, with temperatures falling to around 53 in the afternoon. South southwest wind 1 to 5 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
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Thursday Night
Rain before midnight, then areas of frost. Mostly cloudy. Low around 28, with temperatures rising to around 34 overnight. West wind around 3 mph. Chance of precipitation is 90%. New rainfall amounts less than a tenth of an inch possible.
National Weather Service forecast updated 6 hrs ago.
Hourly
Hourly forecast- Now55°80%
- 9 PM52°92%
- 10 PM49°79%
- 11 PM48°82%
- Thu12 AM46°78%
- 1 AM44°62%
- 2 AM44°57%
- 3 AM43°54%
- 4 AM41°37%
- 5 AM40°29%
- 6 AM40°29%
- 7 AM37°47%
- 8 AM40°43%
- 9 AM44°48%
- 10 AM49°59%
- 11 AM50°52%
- 12 PM52°61%
- 1 PM53°62%
- 2 PM54°63%
- 3 PM55°83%
- 4 PM54°91%
- 5 PM53°56%
- 6 PM54°53%
- 7 PM50°85%
Daily forecast
Details- TonightOct 21Showers And Thunderstorms Likely then Light Rain92%35°
- ThuOct 22Showers And Thunderstorms91%28°56°
- FriOct 23Widespread Frost then Sunny23°60°
- SatOct 24Sunny26°66°
- SunOct 25Sunny26°65°
- MonOct 26Mostly Sunny25°63°
- TueOct 27Sunny25°63°
- WedOct 28Mostly Sunny12%62°
- ThuOct 29Sunny33°64°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
Radar
Full mapWeather news in California
More weather news-
Rare severe storm threat targets Southern California while Arizona faces potential egg-sized hail, tornadoesFLAGSTAFF, Ariz. — Severe thunderstorms blasted parts of Arizona early Wednesday ahead of a rare severe weather threat that will intensify through the day and into the evening. Parts of the state, including Flagstaff…
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Ventura County sees steady rain as storm moves into Southern CaliforniaVENTURA, Calif. (KABC) -- Ventura County was among the first areas in Southern California to see rainfall Wednesday, with rain beginning around 8:30 a.m. The rain was visible along the northbound 101 Freeway in…
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Showery conditions expected today across Northern CaliforniaAction News Now Cloudy conditions are expected across Northern California today, bringing a slight chance of rain showers and highs in the mid-70s. Widespread precipitation is anticipated to develop late today and…
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California's rainy season to arrive with flood threat, tornado risk and Sierra snowCalifornia's wet season is starting off with a bang. The first significant storm of the season is forecast to bring heavy rain to vulnerable burn scars near Big Sur, coastal tornado risk to the Los Angeles area, and a…
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October Storm Threatens Southern California With Up to 2 Inches of RainSouthern California could receive up to 2 inches of rain as an October storm moves along the California coast and heads inland Wednesday and Thursday, October 21-22, 2026. The National Weather Service warned that…
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Rain and Thunderstorms Expected in Southern California with Beach Hazard WarningsAt SSBCrack News, our dedicated editorial team brings you the latest and most reliable updates on Defence, Geopolitics, Military Affairs, Science, and Technology. Driven by a passion for national security and strategic…
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Southern California's wild weather swings continue. Next up, rainSouthern California is likely in for a solid dose of rain this week, just days after heat and Santa Ana winds helped fuel several wildfires across the region. Forecasters expect the bulk of the rain to roll into the Los…
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Storms descend on Southern California, raising risk of dangerous surf, flooding, debris flowsRain is anticipated for Southern California on Wednesday into Thursday as the National Weather Service cautioned about potential beach hazards and thunderstorms from Oxnard to the Mexico border. The weather service's…
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California weather with Dirk & Heather: Showers, thunderstorms and snowWednesday and Thursday will be cool and unsettled with scattered downpours. The first rain chances of the new water year are coming up quickly in Northern California! Wednesday and Thursday will be cool, cloudy and at…
- Weather alert issued for Southern California Wednesday evening, says the NWS
A report was issued from the NWS San Diego CA on Wednesday at 5:49 p.m. for strong thunderstorms until 6:30 p.m. The alert is for San Diego County Coastal Areas, San Bernardino and Riverside County Valleys-The Inland…
Air quality
Air quality is satisfactory, and air pollution poses little or no risk.
Lassen Volcanic National Park, CA reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Almanac
MonthlyWestwood California, records since 1990. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
- Susanville 51 km
- East Quincy 50 km
- Shingletown 59 km
Forecasters' discussion
From the National Weather Service office in STO, issued 7 hrs ago
Key Messages
- Scattered showers, thunderstorms, and high elevation snow showers expected through late Thursday.
- Drier weather moves in Friday and into the weekend, with breezy north to east winds Friday.
- Ridge builds in over the weekend, with slight chances for showers in Shasta county.
.DISCUSSION...
...Today through Thursday...
Current radar has a swath of rain and isolated thunderstorms through the Coastal Range down toward the Sierra Foothills. The track is to the north-northwest. We have seen a few lightning strikes over the past couple of hours, but they remain few and far between storms. There are gaps of coverage in the rain as it moves through the area, but HIRES guidance continues to show the swath of rain filling in completely over the next several hours and begin to push toward the north and east as the main upper level system off the coast moves onshore. Instability has been lacking in the latest observations, with only up to 250 J/kg across the Valley, foothills, and mountains. This will likely continue for the rest of the afternoon. Cloud coverage is the key into keeping the instability lower than expected. None the less, moisture content is high and lift is present to development thunderstorms and at least maintain them through this evening. The question remains on if these storms will be able to sustain hail shafts long enough to produce nickel or even quarter size hail. As of right now, we are leaning toward small hail as a possibility and brief gusty winds in the strongest of storms. Brief heavy rain and frequent lightning will also be a hazard to watch out for.
Aviation
Showers and isolated thunderstorms will be possible through the afternoon and into the evening hours, with lowered ceilings. Ceilings should remain VFR, but chances are there for MVFR for all sites post 00z. Best timeframe for thunderstorms will be 2000z through 0400z for all sites. Winds will remain light throughout the day. Areas in and around thunderstorms may see erratic winds, brief moderate rain reducing visibilities and IFR ceilings. Otherwise, we are looking at a lull in activity later tonight around 09-10z through the mid morning hours. During this lull isolated to scattered showers at times for the sites. Near the end of the TAF period thunderstorm chances start to increase once again.
Sto Watches
None.
Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Search index and reflects what the press published. Terms of use.