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

Dangerous Heat and Possible Flooding This Week

Hot temperatures and high humidity are forecast to continue across much of east Texas into the mid-Mississippi Valley through this week. Heavy to excessive rainfall occurring at times through Friday could bring areas of flooding across parts of the central Plains into the upper Midwest and Four Corners states. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Mostly Cloudy

64°F

18°C

Humidity 63%
Wind Speed N 0 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 14 Sep 07:35 PM PDT
Extended Forecast for

3 Miles ESE Newcastle WA

  • Tonight

    Tonight: Mostly cloudy, with a low around 51. Calm wind.

    Low: 51 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of rain, mainly before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 61. Light north wind.

    High: 61 °F

    Chance Rain
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 48. Calm wind becoming east northeast around 5 mph after midnight.

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 71. East northeast wind around 5 mph becoming light and variable.

    High: 71 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 50. North wind around 5 mph becoming light and variable in the evening.

    Low: 50 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 51. Calm wind.
Tuesday
A 30 percent chance of rain, mainly before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 61. Light north wind.
Tuesday Night
Mostly clear, with a low around 48. Calm wind becoming east northeast around 5 mph after midnight.
Wednesday
Sunny, with a high near 71. East northeast wind around 5 mph becoming light and variable.
Wednesday Night
Mostly clear, with a low around 50. North wind around 5 mph becoming light and variable in the evening.
Thursday
Sunny, with a high near 72.
Thursday Night
Mostly clear, with a low around 51.
Friday
Mostly sunny, with a high near 69.
Friday Night
Mostly clear, with a low around 51.
Saturday
Partly sunny, with a high near 67.
Saturday Night
Mostly clear, with a low around 50.
Sunday
Mostly sunny, with a high near 68.
Sunday Night
Partly cloudy, with a low around 51.
Monday
A chance of rain. Partly sunny, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Newcastle WA
 47.53°N 122.11°W (Elev. 1237 ft)
Last Update:
11:26 am PDT Sep 14, 2026
Forecast Valid:
7pm PDT Sep 14, 2026-6pm PDT Sep 21, 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