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

Hot Temperatures in the West; Heavy Rainfall and Flooding Potential in the Southwest

Hot to extremely hot temperatures are in place across coastal southern California again today and the interior Northwest U.S into Thursday, with the Pacific Northwest carrying the potential for record-breaking high temperatures. A combination of monsoonal moisture and tropical moisture ahead of tropical cyclone Lorena will bring heavy rainfall and the potential for flooding through the week. Read More >

Hazardous Weather Conditions

Current conditions at

NCSB (NCSW1)

Lat: 48.42528°NLon: 120.14194°WElev: 1697.0ft.

NA

103°F

39°C

Humidity 11%
Wind Speed SE 7 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Heat Index98°F (37°C)
Last update 03 Sep 02:06 PM PDT
Extended Forecast for

Winthrop WA

Heat Advisory September 3, 02:41pm until September 4, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 3, 02:41pm until September 4, 08:00pm

    NOW until 8:00pm Thu

    Heat Advisory

  • This Afternoon

    High: 103 °F

    Haze

  • Tonight

    Tonight: Areas of smoke. Mostly clear, with a low around 63. Northwest wind 5 to 9 mph becoming light after midnight.

    Low: 63 °F

    Areas Smoke

  • Thursday

    Thursday: Widespread haze before noon. Sunny and hot, with a high near 99. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 99 °F

    Haze then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 61. Northeast wind around 5 mph becoming calm in the evening.

    Low: 61 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 95. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 95 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.

    Low: 59 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Widespread haze after 3pm. Sunny and hot, with a high near 103. Northwest wind 7 to 9 mph.
Tonight
Areas of smoke. Mostly clear, with a low around 63. Northwest wind 5 to 9 mph becoming light after midnight.
Thursday
Widespread haze before noon. Sunny and hot, with a high near 99. Calm wind becoming southwest around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 61. Northeast wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 95. Calm wind becoming southeast around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 61.
Saturday
Mostly sunny, with a high near 92.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Sunday
A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 85. Chance of precipitation is 30%.
Sunday Night
A 30 percent chance of showers, mainly before 11pm. Partly cloudy, with a low around 54.
Monday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 52.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 73.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Winthrop WA
 48.48°N 120.19°W (Elev. 1801 ft)
Last Update:
2:17 pm PDT Sep 3, 2025
Forecast Valid:
2pm PDT Sep 3, 2025-6pm PDT Sep 9, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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