National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Olympia, Olympia Airport (KOLM)

Lat: 46.97333°NLon: 122.90333°WElev: 203.0ft.

freezing fog

27°F

-3°C

Humidity 96%
Wind Speed N 0 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 26°F (-3°C)
Visibility 0.50 mi
Last update 31 Dec 04:25 AM PST
Extended Forecast for

4 Miles WNW Tumwater WA

Dense Fog Advisory until December 31, 10:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until December 31, 10:00am

    NOW until 10:00am Wed

    Dense Fog Advisory

  • Overnight

    Low: 30 °F

    Frost

  • Wednesday

    Wednesday: Patchy fog between 11am and 1pm. Widespread frost before 11am. Otherwise, mostly sunny, with a high near 45. Calm wind.

    High: 45 °F

    Frost and
    Patchy Fog
    then Patchy
    Fog

  • Wednesday Night

    Wednesday Night: Patchy dense fog. Otherwise, increasing clouds, with a low around 31. Calm wind becoming south southwest around 5 mph after midnight.

    Low: 31 °F

    Patchy Dense
    Fog

  • New Year's Day

    New Year's Day: A 30 percent chance of rain, mainly after 4pm. Cloudy, with a high near 43. South wind 3 to 5 mph.

    High: 43 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Rain, mainly after 10pm. Low around 38. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Rain

  • Friday

    Friday: Rain. High near 50. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 50 °F

    Rain

  • Friday Night

    Friday Night: Rain. Low around 42. Chance of precipitation is 80%.

    Low: 42 °F

    Rain

  • Saturday

    Saturday: Rain. Cloudy, with a high near 51.

    High: 51 °F

    Rain

Detailed Forecast

Overnight
Widespread frost. Otherwise, mostly cloudy, with a low around 30. Calm wind.
Wednesday
Patchy fog between 11am and 1pm. Widespread frost before 11am. Otherwise, mostly sunny, with a high near 45. Calm wind.
Wednesday Night
Patchy dense fog. Otherwise, increasing clouds, with a low around 31. Calm wind becoming south southwest around 5 mph after midnight.
New Year's Day
A 30 percent chance of rain, mainly after 4pm. Cloudy, with a high near 43. South wind 3 to 5 mph.
Thursday Night
Rain, mainly after 10pm. Low around 38. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain. High near 50. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Rain. Low around 42. Chance of precipitation is 80%.
Saturday
Rain. Cloudy, with a high near 51.
Saturday Night
Rain. Cloudy, with a low around 42.
Sunday
Rain likely. Mostly cloudy, with a high near 49.
Sunday Night
Rain likely. Mostly cloudy, with a low around 40.
Monday
A chance of rain. Mostly cloudy, with a high near 48.
Monday Night
A chance of rain. Mostly cloudy, with a low around 37.
Tuesday
A chance of rain. Mostly cloudy, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Tumwater WA
 47°N 122.99°W (Elev. 174 ft)
Last Update:
1:25 am PST Dec 31, 2025
Forecast Valid:
4am PST Dec 31, 2025-6pm PST Jan 6, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation