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Downey, CA 90240 Weather
Current conditions
Observed at Long Beach, Long Beach Airport · 1 hr ago
Forecast
10-day-
This Afternoon
Rain showers likely before 5pm, then rain. Cloudy, with a high near 74. South wind 5 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
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Tonight
Rain before 11pm, then rain and a slight chance of thunderstorms between 11pm and 5am, then showers and thunderstorms. Cloudy, with a low around 58. Southeast wind 5 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
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Thursday
Showers and thunderstorms. Mostly cloudy, with a high near 70. South wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
National Weather Service forecast updated 2 hrs ago.
Hourly
Hourly forecast- Now72°59%
- 4 PM73°59%
- 5 PM70°99%
- 6 PM69°99%
- 7 PM67°99%
- 8 PM65°99%
- 9 PM64°99%
- 10 PM64°99%
- 11 PM63°96%
- Thu12 AM62°96%
- 1 AM61°96%
- 2 AM61°96%
- 3 AM60°96%
- 4 AM60°96%
- 5 AM59°90%
- 6 AM59°90%
- 7 AM58°90%
- 8 AM59°90%
- 9 AM60°90%
- 10 AM62°90%
- 11 AM64°77%
- 12 PM65°77%
- 1 PM66°77%
- 2 PM67°77%
Daily forecast
Details- TodayOct 21Rain99%58°74°
- ThuOct 22Showers And Thunderstorms90%58°70°
- FriOct 23Sunny57°74°
- SatOct 24Sunny59°77°
- SunOct 25Mostly Sunny60°81°
- MonOct 26Sunny60°82°
- TueOct 27Mostly Sunny60°81°
- WedOct 28Partly cloudy58°80°
- ThuOct 29Sunny57°81°
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 near Downey
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Air quality
Forecast
- WedGood (50)
- ThuGood (39)
Southeast LA CO, CA reporting area. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Almanac
MonthlyLong Beach Area, records since 1958. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
- Los Angeles 16 km
- Long Beach 22 km
- Anaheim 23 km
- Santa Ana 33 km
- Irvine 42 km
- Huntington Beach 35 km
- Glendale 24 km
- Garden Grove 26 km
- Rancho Cucamonga 51 km
- Ontario 45 km
- Corona 52 km
- Pomona 35 km
Forecasters' discussion
From the National Weather Service office in LOX, issued 4 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
21/1722Z.
At 1715Z, at KLAX, there was no marine layer nor an inversion.
Low to moderate confidence in 18Z TAF package. Timing of rain could be off by +/- 2 hours of current forecasts. There is a 50% chance of MVFR CIGs with the rain.
There is a 10-20% chance of TSRA through the period with the chances spreading south and east this afternoon and evening.
KLAX...Low confidence in 18Z TAF. Timing of rain may be +/- 2 hours of current forecasts. There is a 50% chance that CIGs remain at VFR levels through the period. THere is a 20% chance of TSRA after 00Z. There is 30% chance of an easterly wind component of 7-10 knots after 22Z.
KBUR...Low confidence in 18Z TAF. Timing of rain may be +/- 2 hours of current forecasts. There is a 50% chance that CIGs remain at VFR levels through the period.
Marine
21/713 AM.
For the Outer Waters, high confidence in current forecast. Through this evening, there is a 70-80% chance of Small Craft Advisory (SCA) level winds around Point Conception with winds and seas remaining below SCA levels elsewhere. Late Thursday and continuing through Friday night, winds are expected to increase to SCA levels. For Saturday through Sunday, winds and seas will remain below SCA levels.
For the Inner Waters north of Point Sal, moderate to high confidence in current forecast. Today through Thursday, high confidence in winds and seas remaining below SCA levels. On Friday, there is a 50% chance of SCA level winds in the afternoon and evening hours. On Saturday and Sunday, high confidence in winds and seas remaining below SCA levels.
For the Inner Waters south of Point Conception, moderate to high confidence in current forecast. Through this evening, there is a 60-80% chance of SCA level southeasterly winds across all the southern Inner Waters. For Thursday through Sunday, high confidence in winds and seas remaining below SCA levels for most areas. The only exception will be the western half of the Santa Barbara Channel with a 50-70% chance of SCA level winds on Thursday and Friday.
Today through Thursday, showers and isolated thunderstorms will impact all of the coastal waters. Any thunderstorms that develop will be capable of producing gusty/erratic winds, locally rough seas and even waterspouts.
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.