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This week's forecast shows temperatures running 1°F below the historical average for October-November. Normal highs for this period are around 76°F with lows around 54°F.
1947 - The Donora, PA, smog disaster finally came to an end. For five days an inversion trapped impurities in the lower atmosphere over the Monongahela Valley killing 20 persons, and leaving more than 2000 others sick.
More on this and other weather history
 
Night: Areas of fog after 11pm. Partly cloudy, with a low around 58. Southeast wind 0 to 5 mph.
 
Day: Patchy fog before 11am. Mostly sunny, with a high near 74. South wind 0 to 5 mph.
 
Night: Patchy fog after 5am. Partly cloudy, with a low around 58. Southeast wind 0 to 5 mph.
 
Day: Patchy fog before 11am. Mostly sunny, with a high near 76. South wind 0 to 5 mph.
 
Night: Patchy fog after 4am. Partly cloudy, with a low around 57. South wind 0 to 5 mph.
 
Day: Patchy fog before 10am. Partly sunny, with a high near 77.
 
Night: Patchy fog after 10pm. Partly cloudy, with a low around 58.
 
Day: Patchy fog before 10am. Mostly sunny, with a high near 75.
 
Night: Patchy fog after 4am. Partly cloudy, with a low around 57.
 
Day: Patchy fog before 10am. Mostly sunny, with a high near 74.
 
Night: Patchy fog after 4am. Partly cloudy, with a low around 57.
 
Day: Patchy fog before 10am. Mostly sunny, with a high near 74.
 
Night: Patchy fog after 10pm. Partly cloudy, with a low around 57.
 
Day: Patchy fog before 10am. Mostly sunny, with a high near 72.
 
  Santa Ana River entrance (inside)
 (5.5 miles away)
Los Patos (highway bridge)
 (5.6 miles away)
Balboa Pier, Newport Beach
 (8.2 miles away)
 
Thu's High Temperature
98 at 2 Miles West Of Pala, CA and 6 Miles West-southwest Of Glamis, CA
Thu's Low Temperature
10 at 4 Miles Northwest Of Grand Lake, CO and 2 Miles Southwest Of Canyon Village, WY

Fountain Valley is a suburban city in Orange County, California. The population was 57,047 at the 2020 census.
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Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.
Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.