Walla Walla Airport (ALW) Weather 08/18/2025
Overnight
63
Slight Chance Showers
Monday
87
Slight Chance Showers then Sunny
Monday Night
61
Mostly Clear
Tuesday
88
Sunny
Tuesday Night
63
Mostly Clear
Wednesday
87
Sunny
Wednesday Night
61
Mostly Clear
Thursday
89
Sunny
Thursday Night
62
Clear
Friday
96
Sunny
Friday Night
65
Clear
Saturday
97
Sunny
Saturday Night
67
Mostly Clear
Weekly Forecast
Overnight
A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 63. South wind 3 to 5 mph.
Monday
A 20 percent chance of showers before 8am. Sunny, with a high near 87. South wind around 6 mph becoming west in the afternoon.
Monday Night
Mostly clear, with a low around 61. West wind around 6 mph becoming south in the evening.
Tuesday
Sunny, with a high near 88. South wind around 6 mph becoming west in the afternoon.
Tuesday Night
Mostly clear, with a low around 63. Northwest wind around 7 mph becoming south in the evening.
Wednesday
Sunny, with a high near 87.
Wednesday Night
Mostly clear, with a low around 61.
Thursday
Sunny, with a high near 89.
Thursday Night
Clear, with a low around 62.
Friday
Sunny, with a high near 96.
Friday Night
Clear, with a low around 65.
Saturday
Sunny, with a high near 97.
Saturday Night
Mostly clear, with a low around 67.