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

Renton Municipal Airport (KRNT)

Lat: 47.49509°NLon: 122.21437°WElev: 23.0ft.

Overcast

46°F

8°C

Humidity 92%
Wind Speed SSE 3 MPH
Barometer 29.58 in (1001.69 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 04 Jan 04:53 PM PST
Extended Forecast for

3 Miles E Newcastle WA

  • This Afternoon

    This Afternoon: Rain. Steady temperature around 41. South wind around 7 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 41 °F

    Rain

  • Tonight

    Tonight: Rain likely before 10pm, then rain and snow between 10pm and 1am, then rain likely after 1am. Low around 36. South wind around 8 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 36 °F

    Rain/Snow

  • Monday

    Monday: A 30 percent chance of rain, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 40. South southwest wind 3 to 6 mph.

    High: 40 °F

    Chance Rain
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Rain, mainly after 4am. Low around 35. South wind 7 to 10 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 35 °F

    Chance Rain
    then Rain

  • Tuesday

    Tuesday: Rain and snow, becoming all rain after 10am. High near 40. South southwest wind around 16 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 40 °F

    Rain/Snow
    then Rain

  • Tuesday Night

    Tuesday Night: Rain before 10pm, then rain and snow likely. Low around 36. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 36 °F

    Rain/Snow
    then
    Rain/Snow
    Likely

  • Wednesday

    Wednesday: Rain. High near 40. Chance of precipitation is 90%.

    High: 40 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain before 10pm, then rain and snow between 10pm and 4am, then snow after 4am. Cloudy, with a low around 35.

    Low: 35 °F

    Rain/Snow

  • Thursday

    Thursday: Snow before 10am, then rain and snow. Cloudy, with a high near 41.

    High: 41 °F

    Rain/Snow

Detailed Forecast

This Afternoon
Rain. Steady temperature around 41. South wind around 7 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain likely before 10pm, then rain and snow between 10pm and 1am, then rain likely after 1am. Low around 36. South wind around 8 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Monday
A 30 percent chance of rain, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 40. South southwest wind 3 to 6 mph.
Monday Night
Rain, mainly after 4am. Low around 35. South wind 7 to 10 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Rain and snow, becoming all rain after 10am. High near 40. South southwest wind around 16 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Tuesday Night
Rain before 10pm, then rain and snow likely. Low around 36. Chance of precipitation is 90%. Little or no snow accumulation expected.
Wednesday
Rain. High near 40. Chance of precipitation is 90%.
Wednesday Night
Rain before 10pm, then rain and snow between 10pm and 4am, then snow after 4am. Cloudy, with a low around 35.
Thursday
Snow before 10am, then rain and snow. Cloudy, with a high near 41.
Thursday Night
Rain likely, possibly mixed with snow. Mostly cloudy, with a low around 38.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 46.
Friday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 38.
Saturday
A slight chance of rain. Mostly cloudy, with a high near 48.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 39.
Sunday
A chance of rain. Mostly cloudy, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Newcastle WA
 47.53°N 122.11°W (Elev. 1237 ft)
Last Update:
1:25 pm PST Jan 4, 2026
Forecast Valid:
5pm PST Jan 4, 2026-6pm PST Jan 11, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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