National Weather Service United States Department of Commerce

Arctic Air Will Move Into U.S. This Week

Arctic air will move back into the central Plains, Great Lake States and Western U.S. this week. Winter Storm Warnings, Winter Weather Advisories and Wind Chill Advisories are in effect in many areas. Recent heavy rains across the lower Mississippi and Tennessee Valleys will shift into the Carolinas Monday. Rivers that came up over the weekend will recede across portions of the South.
Read More...

Hazardous Weather Conditions

Current Conditions

En Español

Share |

3 Miles SW Napa CA

7 Day Forecast

Tonight

Patchy Fog

Patchy
Fog

Low: 36 °F

Monday

Patchy Fog

Patchy
Fog

High: 55 °F

Monday
Night

Partly Cloudy

Partly
Cloudy

Low: 36 °F

Tuesday

Slight Chance Showers Chance for Measurable Precipitation 20%

Slight Chc
Showers

High: 53 °F

Tuesday
Night

Windy

Windy

Low: 32 °F

Wednesday

Breezy

Breezy

High: 51 °F

Wednesday
Night

Mostly Clear

Mostly
Clear

Low: 32 °F

New Year's
Day

Sunny

Sunny

High: 52 °F

Thursday
Night

Mostly Clear

Mostly
Clear

Low: 34 °F

Detailed Forecast

  • Tonight Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 36. Calm wind becoming north northeast around 5 mph after midnight.
  • Monday Patchy fog before 10am. Otherwise, mostly sunny, with a high near 55. Calm wind becoming west northwest around 6 mph in the afternoon.
  • Monday Night Partly cloudy, with a low around 36. North wind around 5 mph.
  • Tuesday A 20 percent chance of showers. Mostly sunny, with a high near 53. Breezy, with a north wind 9 to 14 mph increasing to 19 to 24 mph in the morning. Winds could gust as high as 31 mph. New precipitation amounts of less than a tenth of an inch possible.
  • Tuesday Night Mostly clear, with a low around 32. Windy, with a north wind 25 to 31 mph, with gusts as high as 40 mph.
  • Wednesday Sunny, with a high near 51. Breezy.
  • Wednesday Night Mostly clear, with a low around 32.
  • New Year's Day Sunny, with a high near 52.
  • Thursday Night Mostly clear, with a low around 34.
  • Friday Sunny, with a high near 53.
  • Friday Night Partly cloudy, with a low around 38.
  • Saturday Mostly sunny, with a high near 56.
  • Saturday Night Partly cloudy, with a low around 41.
  • Sunday Mostly sunny, with a high near 59.