Tracking Winter Weather and Frigid Temperatures Through This Weekend
A clipper storm will move across the Great Lakes through this weekend with periods of light snow, gusty winds, and lake effect snow bands which could make for hazardous travel at times. A frigid airmass will spread eastward behind this storm into the Midwest and Eastern U.S. through the weekend. Read More >
Current conditions at
Renton Municipal Airport (KRNT)
Lat: 47.49509°NLon: 122.21437°WElev: 23.0ft.
Clear
39°F
4°C
| Humidity | 93% |
| Wind Speed | N 0 MPH |
| Barometer | 30.35 in (1027.77 mb) |
| Dewpoint | 37°F (3°C) |
| Visibility | 10.00 mi |
| Last update | 17 Jan 12:20 AM PST |
Extended Forecast for
Newcastle WA
Overnight
Low: 38 °F
Mostly Clear
Saturday
High: 52 °F
Sunny
Saturday Night
Low: 36 °F
Mostly Clear
Sunday
High: 50 °F
Sunny
Sunday Night
Low: 35 °F
Mostly Clear
M.L.King Day
High: 50 °F
Sunny
Monday Night
Low: 34 °F
Mostly Clear
Tuesday
High: 47 °F
Partly Sunny
Tuesday Night
Low: 35 °F
Mostly Cloudy
Detailed Forecast
Overnight
Mostly clear, with a low around 38. East northeast wind around 6 mph.
Saturday
Sunny, with a high near 52. East wind 3 to 5 mph.
Saturday Night
Mostly clear, with a low around 36. Light east wind.
Sunday
Sunny, with a high near 50. Light and variable wind.
Sunday Night
Mostly clear, with a low around 35. East wind 3 to 5 mph.
M.L.King Day
Sunny, with a high near 50.
Monday Night
Mostly clear, with a low around 34.
Tuesday
Partly sunny, with a high near 47.
Tuesday Night
Mostly cloudy, with a low around 35.
Wednesday
Partly sunny, with a high near 46.
Wednesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 36.
Thursday
A chance of rain and snow. Partly sunny, with a high near 44.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 36.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 43.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Newcastle WA
47.55°N 122.14°W (Elev. 538 ft)
47.55°N 122.14°W (Elev. 538 ft)
7:01 pm PST Jan 16, 2026
12am PST Jan 17, 2026-6pm PST Jan 23, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
