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City of Prosser, WAProsser, WA 14 Day Weather - 99350 WeatherWorld.com
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Prosser, WA Weather Forecast
Prosser, WA Weather Forecast Dated: 218 PM Sun Sep 27 2026
Expect a mild stretch with plenty of sunshine and mostly dry weather over the coming period. comfortable humidity and no major pressure swings will dominate.
Sunday, September 27, 2026
Mid-Morning
54°F 12°C
Overcast
Mid-Afternoon
63°F 17°C
Overcast
Early-Evening
60°F 16°C
Partly Cloudy
Refreshing around 63°F 17°C, overcast through the afternoon, turning partly cloudy this evening, with steady humidity and barometric pressure falling.
Monday, September 28, 2026
Mid-Morning
54°F 12°C
Sunny
Mid-Afternoon
70°F 21°C
Sunny
Early-Evening
65°F 19°C
Sunny
Comfortable with temperatures reaching 70°F 21°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and barometric pressure falling.
Tuesday, September 29, 2026
Mid-Morning
56°F 14°C
Sunny
Mid-Afternoon
73°F 23°C
Overcast
Early-Evening
64°F 18°C
Overcast
Enjoyable around 73°F 23°C, sunny in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure. Winds picking up from SW at 4 mph 6 km/h to W at 15 mph 24 km/h. Gusts up to 24 mph 39 km/h.
Wednesday, September 30, 2026
Mid-Morning
53°F 12°C
Sunny
Mid-Afternoon
66°F 19°C
Overcast
Early-Evening
61°F 17°C
Overcast
Cool with a high near 66°F 19°C, sunny in the morning, becoming overcast through the afternoon and evening, with lower humidity and steady pressure.
Thursday, October 1, 2026
Mid-Morning
55°F 13°C
Overcast
Mid-Afternoon
70°F 21°C
Cloudy
Early-Evening
66°F 19°C
Cloudy
Mild with a high of 70°F 21°C, overcast through the afternoon, turning cloudy this evening, with steady humidity and barometric pressure falling.
Friday, October 2, 2026
Mid-Morning
60°F 15°C
Overcast
Mid-Afternoon
70°F 21°C
Partly Cloudy
Early-Evening
68°F 20°C
Overcast
Pleasant near 70°F 21°C, overcast in the morning, becoming cloudy through the afternoon and evening, with lower humidity and steady pressure.
Saturday, October 3, 2026
Mid-Morning
56°F 13°C
Sunny
Mid-Afternoon
70°F 21°C
Sunny
Early-Evening
64°F 18°C
Sunny
Comfortable with temperatures reaching 70°F 21°C, sunny in the morning, cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure.
Sunday, October 4, 2026
Mid-Morning
59°F 15°C
Sunny
Mid-Afternoon
71°F 22°C
Sunny
Early-Evening
65°F 19°C
Sunny
Enjoyable around 71°F 22°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds switching from the WSW to the NNW at 5 mph 8 km/h.
Monday, October 5, 2026
Mid-Morning
60°F 16°C
Sunny
Mid-Afternoon
75°F 24°C
Sunny
Early-Evening
70°F 21°C
Sunny
Mild temperatures up to 75°F 24°C, sunny throughout the day, with steady humidity and barometric pressure falling.
Tuesday, October 6, 2026
Mid-Morning
62°F 17°C
Sunny
Mid-Afternoon
77°F 25°C
Sunny
Early-Evening
71°F 22°C
Sunny
Mild with a high of 77°F 25°C, sunny throughout the day, with lower humidity and steady pressure.
Wednesday, October 7, 2026
Mid-Morning
63°F 17°C
Sunny
Mid-Afternoon
75°F 24°C
Sunny
Early-Evening
71°F 21°C
Sunny
Pleasant near 75°F 24°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds moving from the WSW to the ESE at 8 mph 12 km/h.
Thursday, October 8, 2026
Mid-Morning
63°F 17°C
Sunny
Mid-Afternoon
76°F 24°C
Sunny
Early-Evening
70°F 21°C
Sunny
Comfortable with temperatures reaching 76°F 24°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds swinging from the SW to the NNW at 5 mph 7 km/h.
Friday, October 9, 2026
Mid-Morning
64°F 18°C
Sunny
Mid-Afternoon
78°F 26°C
Sunny
Early-Evening
71°F 22°C
Sunny
Enjoyable around 78°F 26°C, sunny throughout the day, with steady humidity and steady pressure.
Saturday, October 10, 2026
Mid-Morning
65°F 18°C
Sunny
Mid-Afternoon
79°F 26°C
Sunny
Early-Evening
72°F 22°C
Sunny
Mild temperatures up to 79°F 26°C, sunny throughout the day, with steady humidity and steady pressure.
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