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

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Sunday could bring areas of flooding to parts of the upper Midwest, central Great Lakes, southern New England and Virginia/North Carolina tidewater region. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Clear

55°F

13°C

Humidity 93%
Wind Speed SE 5 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 18 Sep 03:20 AM PDT
Extended Forecast for

3 Miles NNW Issaquah WA

  • Overnight

    Overnight: Clear, with a low around 53. Calm wind.

    Low: 53 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 73. Light and variable wind.

    High: 73 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 51. Light and variable wind.

    Low: 51 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 72. Calm wind.

    High: 72 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 50. Calm wind.

    Low: 50 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 53. Calm wind.
Friday
Sunny, with a high near 73. Light and variable wind.
Friday Night
Mostly clear, with a low around 51. Light and variable wind.
Saturday
Mostly sunny, with a high near 72. Calm wind.
Saturday Night
Mostly clear, with a low around 50. Calm wind.
Sunday
Sunny, with a high near 73.
Sunday Night
Mostly clear, with a low around 52.
Monday
Mostly sunny, with a high near 70.
Monday Night
Partly cloudy, with a low around 53.
Tuesday
Partly sunny, with a high near 67.
Tuesday Night
Mostly cloudy, with a low around 51.
Wednesday
Mostly cloudy, with a high near 67.
Wednesday Night
Mostly cloudy, with a low around 51.
Thursday
Partly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Issaquah WA
 47.58°N 122.06°W (Elev. 400 ft)
Last Update:
11:26 pm PDT Sep 17, 2026
Forecast Valid:
3am PDT Sep 18, 2026-6pm PDT Sep 24, 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