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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

66°F

19°C

Humidity 52%
Wind Speed E 6 MPH
Barometer 29.87 in (1011.51 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 18 Aug 12:05 AM PDT
Extended Forecast for

Prescott WA

  • Overnight

    Overnight: A 20 percent chance of showers after 2am. Mostly cloudy, with a steady temperature around 63. Light and variable wind.

    Low: 63 °F

    Slight Chance
    Showers

  • Monday

    Monday: A 20 percent chance of showers before 8am. Sunny, with a high near 88. South wind 5 to 8 mph becoming west in the afternoon.

    High: 88 °F

    Slight Chance
    Showers then
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 58. West wind around 7 mph becoming south after midnight.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89. South wind around 7 mph becoming west in the afternoon.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 59. West wind around 7 mph becoming south in the evening.

    Low: 59 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88.

    High: 88 °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 89.

    High: 89 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 56.

    Low: 56 °F

    Clear

Detailed Forecast

Overnight
A 20 percent chance of showers after 2am. Mostly cloudy, with a steady temperature around 63. Light and variable wind.
Monday
A 20 percent chance of showers before 8am. Sunny, with a high near 88. 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 after midnight.
Tuesday
Sunny, with a high near 89. South wind around 7 mph becoming west in the afternoon.
Tuesday Night
Clear, with a low around 59. West wind around 7 mph becoming south in the evening.
Wednesday
Sunny, with a high near 88.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Sunny, with a high near 89.
Thursday Night
Clear, with a low around 56.
Friday
Sunny, with a high near 96.
Friday Night
Clear, with a low around 60.
Saturday
Sunny and hot, with a high near 98.
Saturday Night
Mostly clear, with a low around 63.
Sunday
Sunny, with a high near 97.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Prescott WA
 46.3°N 118.31°W (Elev. 1198 ft)
Last Update:
10:41 pm PDT Aug 17, 2025
Forecast Valid:
12am PDT Aug 18, 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