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Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

Walla Walla Regional Airport (KALW)

Lat: 46.09462°NLon: 118.2858°WElev: 1168.0ft.

Clear

79°F

26°C

Humidity 31%
Wind Speed NW 8 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 17 Aug 07:05 PM PDT
Extended Forecast for

Prescott WA

  • Tonight

    Tonight: A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 59. West wind around 6 mph becoming light and variable in the evening.

    Low: 59 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Monday

    Monday: A 20 percent chance of showers before 8am. Sunny, with a high near 87. South wind 5 to 8 mph becoming west in the afternoon.

    High: 87 °F

    Slight Chance
    Showers then
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 58. West wind around 7 mph becoming south in the evening.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88. South wind around 7 mph becoming west in the afternoon.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 58. West wind around 7 mph becoming south in the evening.

    Low: 58 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 56.

    Low: 56 °F

    Clear

Detailed Forecast

Tonight
A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 59. West wind around 6 mph becoming light and variable in the evening.
Monday
A 20 percent chance of showers before 8am. Sunny, with a high near 87. South wind 5 to 8 mph becoming west in the afternoon.
Monday Night
Mostly clear, with a low around 58. West wind around 7 mph becoming south in the evening.
Tuesday
Sunny, with a high near 88. South wind around 7 mph becoming west in the afternoon.
Tuesday Night
Clear, with a low around 58. West wind around 7 mph becoming south in the evening.
Wednesday
Sunny, with a high near 87.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Sunny, with a high near 88.
Thursday Night
Clear, with a low around 56.
Friday
Sunny, with a high near 95.
Friday Night
Clear, with a low around 59.
Saturday
Sunny, with a high near 97.
Saturday Night
Mostly clear, with a low around 63.
Sunday
Sunny, with a high near 95.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Prescott WA
 46.3°N 118.28°W (Elev. 1201 ft)
Last Update:
4:15 pm PDT Aug 17, 2025
Forecast Valid:
7pm PDT Aug 17, 2025-6pm PDT Aug 24, 2025
 
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