Pomona, CA Weather

Los Angeles County4:43 AM PDT34.06°N, 117.75°WElevation 850 ft

Current conditions

Partly Cloudy
58°
Partly Cloudy
Feels like 58°
High 75°·Low 60° tonight
WindNNE 2 mph
Humidity66%
Dew point47°
Cloud cover45%
UV index0 Low
Sunrise7:02 AM
Sunset6:11 PM

Observed at CLAREMONT · 48 min ago

Forecast

10-day

  • Overnight

    A slight chance of rain showers after 5am. Partly cloudy, with a low around 60. Southeast wind around 5 mph. Chance of precipitation is 20%.

  • Wednesday

    Rain showers. Partly sunny, with a high near 75. South southeast wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

  • Wednesday Night

    Rain showers before 11pm, then showers and thunderstorms. Cloudy, with a low around 57. South wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

National Weather Service forecast updated 2 hrs ago.

Hourly

Hourly forecast
  1. Now Partly Cloudy 60°
  2. 5 AM Slight Chance Rain Showers 60°18%
  3. 6 AM Slight Chance Rain Showers 60°18%
  4. 7 AM Slight Chance Rain Showers 60°18%
  5. 8 AM Slight Chance Rain Showers 61°18%
  6. 9 AM Slight Chance Rain Showers 64°18%
  7. 10 AM Slight Chance Rain Showers 70°18%
  8. 11 AM Chance Rain Showers 72°51%
  9. 12 PM Chance Rain Showers 74°51%
  10. 1 PM Chance Rain Showers 75°51%
  11. 2 PM Chance Rain Showers 71°51%
  12. 3 PM Chance Rain Showers 70°51%
  13. 4 PM Chance Rain Showers 70°51%
  14. 5 PM Rain Showers 62°84%
  15. 6 PM Rain Showers 61°84%
  16. 7 PM Rain Showers 60°84%
  17. 8 PM Rain Showers 61°84%
  18. 9 PM Rain Showers 60°84%
  19. 10 PM Rain Showers 58°84%
  20. 11 PM Showers And Thunderstorms 58°85%
  21. Thu12 AM Showers And Thunderstorms 58°85%
  22. 1 AM Showers And Thunderstorms 58°85%
  23. 2 AM Showers And Thunderstorms 58°85%
  24. 3 AM Showers And Thunderstorms 58°85%

10-day forecast

Details
  1. TonightOct 20 Slight Chance Rain Showers Slight Chance Rain Showers18%60°
  2. TodayOct 21 Rain Showers Rain Showers85%57°75°
  3. ThuOct 22 Showers And Thunderstorms Showers And Thunderstorms90%54°68°
  4. FriOct 23 Sunny Sunny54°71°
  5. SatOct 24 Sunny Sunny56°76°
  6. SunOct 25 Sunny Sunny58°78°
  7. MonOct 26 Sunny Sunny58°80°
  8. TueOct 27 Sunny Sunny78°
  9. WedOct 28 Cloudy Cloudy65°84°
  10. ThuOct 29 Cloudy Cloudy64°82°

Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.

Radar

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Weather news in California

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Air quality

Forecast

  • WedGood (50)

Pomona Walnut Vly, CA reporting area. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 7:02 AM
Sunset 6:11 PM
Daylight 11 h 9 min (−1 min 59 s tomorrow)
Waxing Gibbous · 77% lit
Moonrise 3:40 PM Moonset 2:24 AM
Full moon Oct 26 New moon Nov 9

Nearby

Forecasters' discussion

From the National Weather Service office in LOX, issued 2 hrs ago

Synopsis

21/227 AM.

Widespread rain will develop later today and continue into Thursday with a chance of thunderstorms. A weak Santa Ana will develop in the storm's wake by the weekend for dry and warmer conditions.

Long Term (sat-tue)

21/227 AM.

Weak ridging and weak (1 to 3 mb) offshore flow from both the east and north will be in place for the entire xtnd period. The best upper level support will be on Saturday when there will be 30 to 40 mph gusts csts/vlys and as high as 50 mph in the mtns. The winds will be weaker starting Sunday.

High pressure and offshore flow should keep the skies clear.

There will be decent warming on Saturday (4 to 6 degrees) and then 1 or 2 degrees of extra warming Sun and Mon. Tuesday will cool some as the ridge and offshore flow weaken substantially. Cst/Vly temps will be a little above normal while the interior will be several degrees blo normal.

A quick look at the AI long range models shows dry conditions through the end of the month.

Aviation

21/0858Z.

At 0832Z at KLAX, there was no marine layer nor an inversion.

High confidence in VFR TAFs at KPMD and KWJF.

Moderate confidence in non desert TAFs through 17Z with a 30 percent chc of intermittent MVFR cigs.

Moderate confidence in all non desert TAFs after 17Z. Rain timing could be off by +/- 2 hours. There is a 40 percent chc that there will be MVFR cigs/vis with the rain.

There is a 10-20 percent chance of TSRA KSBA and north starting around 18Z. The chc of TSRA will then spread to KOXR and KCMA Wednesday afternoon, and into LA County after 03Z.

Marine

21/230 AM.

Expecting showers to continue moving into the coastal waters this morning as the low approaches from the west. Boaters can expect rain and a chance of thunderstorms and isolated waterspouts spreading from western waters to southeast. With any thunderstorm there is also the threat of lightning, gusty and erratic winds, small hail, and choppy seas. Winds still do not look too impactful, there is a good chance for periods of Small Craft Advisory (SCA) level (including the nearshore waters) southerly winds this morning through this evening. As the system leaves the area Thursday, fairly widespread west to northwest SCA winds will impact much of the coastal waters, creating steep, choppy wind waves.

Then a weak to locally moderate Santa Ana Wind event is likely this weekend, with some localized SCA level gusts possible nearshore in favored areas nearshore adjacent to Ventura and LA Counties.

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 4Conservative index and reflects what the press published. Terms of use.