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Severe Thunderstorms and Heavy Rain Exacerbate Ongoing Flooding; Cold and Wintry Continue Out West

A developing wave will bring a threat of severe thunderstorms Saturday from the Arklatex area to the Middle Mississippi Valley; and may produce tornadoes, damaging winds, and large hail; including potential for significant tornadoes and very large hail. Additional heavy rain will increase ongoing flooding. Heavy western mountain and Upper Midwest snow; and ice in the Northeast is also expected. Read More >

Hazardous Weather Conditions

Current conditions at

Napa, Napa County Airport (KAPC)

Lat: 38.2075°NLon: 122.27944°WElev: 33ft.

Fair

42°F

6°C

Humidity 57%
Wind Speed calm
Barometer 30.38 in (1027.9 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 23 Feb 6:54 pm PST
Extended Forecast for

3 Miles SW Napa CA

  • Tonight

    Tonight: Widespread frost, mainly after 1am.  Otherwise, mostly clear, with a low around 31. West northwest wind around 6 mph becoming calm  in the evening.

    Frost

    Low: 31 °F

  • Saturday

    Saturday: Widespread frost before 9am.  Otherwise, mostly sunny, with a high near 56. Light and variable wind becoming west northwest 13 to 18 mph in the morning. Winds could gust as high as 24 mph.

    Frost then
    Mostly Sunny

    High: 56 °F

  • Saturday
    Night

    Saturday Night: Areas of frost after 4am.  Otherwise, mostly clear, with a low around 33. North wind around 7 mph.

    Partly Cloudy
    then Areas
    Frost

    Low: 33 °F

  • Sunday

    Sunday: Widespread frost, mainly before 8am.  Otherwise, sunny, with a high near 59. South wind 5 to 10 mph becoming west 12 to 17 mph in the morning. Winds could gust as high as 22 mph.

    Frost then
    Mostly Sunny

    High: 59 °F

  • Sunday
    Night

    Sunday Night: A 30 percent chance of showers after 10pm.  Mostly cloudy, with a low around 38. West wind 10 to 18 mph becoming south in the evening. Winds could gust as high as 23 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Chance
    Showers

    Low: 38 °F

  • Monday

    Monday: A chance of showers before 10am, then a chance of rain after 10am.  Mostly cloudy, with a high near 54. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Chance
    Showers

    High: 54 °F

  • Monday
    Night

    Monday Night: A 20 percent chance of showers.  Partly cloudy, with a low around 34.

    Slight Chance
    Showers

    Low: 34 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 60.

    Mostly Sunny

    High: 60 °F

  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 32.

    Partly Cloudy

    Low: 32 °F

Detailed Forecast

Tonight
Widespread frost, mainly after 1am. Otherwise, mostly clear, with a low around 31. West northwest wind around 6 mph becoming calm in the evening.
Saturday
Widespread frost before 9am. Otherwise, mostly sunny, with a high near 56. Light and variable wind becoming west northwest 13 to 18 mph in the morning. Winds could gust as high as 24 mph.
Saturday Night
Areas of frost after 4am. Otherwise, mostly clear, with a low around 33. North wind around 7 mph.
Sunday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 59. South wind 5 to 10 mph becoming west 12 to 17 mph in the morning. Winds could gust as high as 22 mph.
Sunday Night
A 30 percent chance of showers after 10pm. Mostly cloudy, with a low around 38. West wind 10 to 18 mph becoming south in the evening. Winds could gust as high as 23 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday
A chance of showers before 10am, then a chance of rain after 10am. Mostly cloudy, with a high near 54. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 34.
Tuesday
Mostly sunny, with a high near 60.
Tuesday Night
Partly cloudy, with a low around 32.
Wednesday
Mostly sunny, with a high near 58.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 39.
Thursday
A chance of showers. Partly sunny, with a high near 55.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 37.
Friday
A chance of showers. Partly sunny, with a high near 55.
Click Map For Forecast
Point Forecast:
3 Miles SW Napa CA
 38.26°N 122.34°W (Elev. 157 ft)
3:19 pm PST Feb 23, 2018
7pm PST Feb 23, 2018-6pm PST Mar 2, 2018
 
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