Severe Thunderstorms in the Central Plains and Lower Missouri Valley; Heat Continues in the Southeast and Southwest
Severe thunderstorms capable of large hail and damaging wind gusts are forecast to impact the central Plains into the Lower Missouri Valley through this afternoon. Dangerous heat persists across the southern Plains, Southeast U.S. and Puerto Rico this week, and will return to the Southwest today. Read More >
Current conditions at
Renton Municipal Airport (KRNT)
Lat: 47.49509°NLon: 122.21437°WElev: 23.0ft.
Clear
63°F
17°C
| Humidity | 82% |
| Wind Speed | S 4 MPH |
| Barometer | 30.12 in (1019.98 mb) |
| Dewpoint | 57°F (14°C) |
| Visibility | 9.00 mi |
| Last update | 18 Aug 07:00 AM PDT |
Extended Forecast for
Newcastle WA
Today
High: 80 °F
Gradual
ClearingTonight
Low: 60 °F
Increasing
CloudsWednesday
High: 79 °F
Decreasing
CloudsWednesday Night
Low: 59 °F
Partly Cloudy
Thursday
High: 82 °F
Mostly Sunny
Thursday Night
Low: 60 °F
Mostly Clear
Friday
High: 80 °F
Partly Sunny
Friday Night
Low: 59 °F
Partly Cloudy
Saturday
High: 73 °F
Mostly Cloudy
Detailed Forecast
Today
Cloudy through mid morning, then gradual clearing, with a high near 80. South wind around 5 mph becoming calm in the afternoon.
Tonight
Increasing clouds, with a low around 60. Calm wind becoming south around 5 mph.
Wednesday
Cloudy, then gradually becoming mostly sunny, with a high near 79. Light and variable wind.
Wednesday Night
Partly cloudy, with a low around 59. Calm wind.
Thursday
Mostly sunny, with a high near 82. Calm wind becoming north northwest around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 60.
Friday
Partly sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 59.
Saturday
Mostly cloudy, with a high near 73.
Saturday Night
Mostly cloudy, with a low around 58.
Sunday
Partly sunny, with a high near 76.
Sunday Night
Partly cloudy, with a low around 57.
Monday
Mostly sunny, with a high near 77.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Newcastle WA
47.56°N 122.18°W (Elev. 207 ft)
47.56°N 122.18°W (Elev. 207 ft)
11:26 pm PDT Aug 17, 2026
7am PDT Aug 18, 2026-6pm PDT Aug 24, 2026
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