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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

62°F

17°C

Humidity 57%
Wind Speed S 5 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 18 Aug 03:53 AM PDT
Extended Forecast for

8 Miles WSW Pomeroy WA

  • Overnight

    Overnight: A 20 percent chance of showers. Mostly cloudy, with a steady temperature around 62. Southeast wind around 5 mph.

    Low: 62 °F

    Slight Chance
    Showers

  • Monday

    Monday: A 20 percent chance of showers before 8am. Sunny, with a high near 87. Southwest wind 5 to 9 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 89. Southwest wind 7 to 9 mph becoming west in the afternoon.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 59. West wind 7 to 9 mph becoming south in the evening.

    Low: 59 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 58.

    Low: 58 °F

    Clear

Detailed Forecast

Overnight
A 20 percent chance of showers. Mostly cloudy, with a steady temperature around 62. Southeast wind around 5 mph.
Monday
A 20 percent chance of showers before 8am. Sunny, with a high near 87. Southwest wind 5 to 9 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 89. Southwest wind 7 to 9 mph becoming west in the afternoon.
Tuesday Night
Mostly clear, with a low around 59. West wind 7 to 9 mph becoming south in the evening.
Wednesday
Sunny, with a high near 87.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Sunny, with a high near 90.
Thursday Night
Clear, with a low around 58.
Friday
Sunny, with a high near 96.
Friday Night
Clear, with a low around 62.
Saturday
Sunny and hot, with a high near 99.
Saturday Night
Mostly clear, with a low around 64.
Sunday
Sunny, with a high near 97.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles WSW Pomeroy WA
 46.45°N 117.76°W (Elev. 1598 ft)
Last Update:
3:30 am PDT Aug 18, 2025
Forecast Valid:
4am 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