Prosser, WA Hourly Weather Forecast
Next 48 Hours
Tue, Sep 1st 2026
Overcast skies will dominate from morning to night. Warming trend from 67°F to 87°. Breezy wind, shifting from S to W at 9.3 mph, with humidity ranging 16% to 47%, and an avg barometric pressure of 29.61 inHg.
| Tue, Sep 1st | Temp | Humidity | Wind (mph) | Pressure (inHg) | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 PM Overcast UV: 4.6 |
84°F Feels 79°F |
24% | 6.9 S | 29.69 | 43.8°F | 9% |
1 PM OvercastUV: 5.1 |
87°F Feels 82°F |
21% | 6.9 S | 29.67 | 43.2°F | 9% |
2 PM OvercastUV: 5 |
82°F Feels 73°F |
18% | 8.7 S | 29.64 | 34.4°F | 9% |
3 PM Sunny UV: 4.2 |
83°F Feels 75°F |
18% | 8.5 SSE | 29.62 | 35.2°F | 0% |
4 PM SunnyUV: 2.7 |
85°F Feels 77°F |
17% | 8.3 S | 29.58 | 35.3°F | 0% |
5 PM SunnyUV: 1.3 |
85°F Feels 77°F |
16% | 8.9 SSW | 29.56 | 34.7°F | 1% |
6 PM SunnyUV: 0.5 |
85°F Feels 76°F |
17% | 9.8 SSW | 29.54 | 34.8°F | 1% |
7 PM Partly Cloudy UV: 0 |
81°F Feels 73°F |
21% | 9.4 SSW | 29.55 | 37.4°F | 2% |
8 PM Clear UV: 0 |
75°F Feels 69°F |
29% | 5.8 WSW | 29.58 | 40.6°F | 2% |
9 PM Overcast UV: 0 |
72°F Feels 65°F |
35% | 10.5 W | 29.61 | 43°F | 10% |
10 PM OvercastUV: 0 |
69°F Feels 59°F |
42% | 15.7 WNW | 29.62 | 45.1°F | 9% |
11 PM OvercastUV: 0 |
67°F Feels 59°F |
47% | 12.1 W | 29.65 | 45.7°F | 11% |
Wed, Sep 2nd 2026
Overcast skies will dominate from morning to night. Warming trend from 57°F to 74°. Breezy wind, shifting from WSW to SSW at 10.9 mph, with humidity ranging 28% to 72%, and an avg barometric pressure of 29.71 inHg.
| Wed, Sep 2nd | Temp | Humidity | Wind (mph) | Pressure (inHg) | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 AM OvercastUV: 0 |
65°F Feels 59°F |
48% | 8.9 WSW | 29.68 | 44.9°F | 11% |
1 AM ClearUV: 0 |
64°F Feels 58°F |
53% | 8.3 W | 29.68 | 46.2°F | 3% |
2 AM OvercastUV: 0 |
63°F Feels 58°F |
57% | 7.2 WSW | 29.69 | 47.1°F | 14% |
3 AM Scattered Showers UV: 0 |
62°F Feels 58°F |
58% | 4.7 SW | 29.7 | 46.6°F | 16% |
4 AM Scattered ShowersUV: 0 |
60°F Feels 56°F |
67% | 5.4 SSW | 29.7 | 48.8°F | 27% Rain est. 0.01in |
5 AM Scattered ShowersUV: 0 |
58°F Feels 56°F |
72% | 3.8 SSW | 29.71 | 49.3°F | 29% |
6 AM Partly Cloudy UV: 0 |
59°F Feels 55°F |
67% | 5.1 WSW | 29.72 | 47.7°F | 7% |
7 AM SunnyUV: 0.1 |
59°F Feels 54°F |
64% | 6.7 SW | 29.74 | 46.4°F | 4% |
8 AM Partly CloudyUV: 0.4 |
60°F Feels 53°F |
54% | 9.6 SSW | 29.75 | 42.9°F | 4% |
9 AM SunnyUV: 1.1 |
64°F Feels 54°F |
43% | 15.4 WSW | 29.73 | 41.5°F | 1% |
10 AM Cloudy UV: 2.5 |
68°F Feels 58°F |
35% | 15.2 WSW | 29.73 | 39.8°F | 7% |
11 AM Scattered Showers UV: 3.8 |
70°F Feels 59°F |
33% | 16.3 SW | 29.73 | 39.6°F | 7% |
12 PM OvercastUV: 5 |
72°F Feels 60°F |
30% | 16.6 SSW | 29.72 | 38.9°F | 9% |
1 PM OvercastUV: 5.5 |
73°F Feels 60°F |
29% | 17.9 SSW | 29.71 | 38.8°F | 9% |
2 PM OvercastUV: 5 |
74°F Feels 64°F |
28% | 13 SSW | 29.68 | 38.6°F | 9% |
3 PM Scattered ShowersUV: 3.7 |
74°F Feels 63°F |
29% | 15.9 S | 29.66 | 39.9°F | 10% |
4 PM OvercastUV: 2.3 |
69°F Feels 61°F |
38% | 10.1 S | 29.67 | 42.1°F | 10% |
5 PM OvercastUV: 1.1 |
70°F Feels 61°F |
35% | 11.4 SSW | 29.67 | 41°F | 10% |
6 PM OvercastUV: 0.3 |
67°F Feels 55°F |
39% | 16.1 SW | 29.69 | 40.6°F | 10% |
7 PM OvercastUV: 0 |
64°F Feels 55°F |
45% | 13.9 SW | 29.69 | 42.4°F | 11% |
8 PM OvercastUV: 0 |
62°F Feels 53°F |
50% | 13.2 SW | 29.71 | 43.3°F | 12% |
9 PM Light Rain Shower UV: 0 |
58°F Feels 51°F |
64% | 9.6 SW | 29.74 | 45.6°F | 26% Rain est. 0.01in |
10 PM Scattered ShowersUV: 0 |
57°F Feels 51°F |
72% | 10.3 SSW | 29.74 | 47.8°F | 20% |
11 PM Scattered ShowersUV: 0 |
57°F Feels 53°F |
70% | 6.9 SSW | 29.74 | 47.2°F | 21% |
Thu, Sep 3rd 2026
A full day of Overcast conditions is expected. Temps range from 55° to 65°. Light winds, shifting from SSW to WSW at 5.3 mph, as humidity fluctuates between 32% to 80%, and an avg barometric pressure of 29.74 inHg.
| Thu, Sep 3rd | Temp | Humidity | Wind (mph) | Pressure (inHg) | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 AM OvercastUV: 0 |
57°F Feels 54°F |
67% | 4.3 SSW | 29.73 | 46.6°F | 16% |
1 AM Scattered ShowersUV: 0 |
57°F Feels 53°F |
69% | 5.8 S | 29.74 | 47°F | 18% |
2 AM Cloudy UV: 0 |
56°F Feels 52°F |
70% | 6.5 S | 29.73 | 46.7°F | 14% |
3 AM OvercastUV: 0 |
56°F Feels 54°F |
77% | 4 S | 29.73 | 48.6°F | 22% |
4 AM OvercastUV: 0 |
56°F Feels 54°F |
74% | 3.1 S | 29.73 | 47.5°F | 21% |
5 AM OvercastUV: 0 |
56°F Feels 53°F |
73% | 2.7 S | 29.73 | 47.1°F | 19% |
6 AM CloudyUV: 0 |
56°F Feels 54°F |
74% | 2.5 S | 29.72 | 47.5°F | 16% |
7 AM OvercastUV: 0 |
55°F Feels 54°F |
80% | 2.9 SSE | 29.75 | 49.3°F | 24% |
8 AM Partly CloudyUV: 0.5 |
56°F Feels 54°F |
68% | 3.4 SSE | 29.76 | 45.8°F | 11% |
9 AM OvercastUV: 1.3 |
60°F Feels 55°F |
50% | 5.6 S | 29.76 | 41.2°F | 12% |
10 AM SunnyUV: 2.5 |
62°F Feels 57°F |
42% | 6.3 S | 29.76 | 38.8°F | 2% |
11 AM SunnyUV: 3.8 |
65°F Feels 53°F |
32% | 16.6 WSW | 29.76 | 34.8°F | 1% |
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|
81°F |
29.7 inHg.
Barometer 23%
Humidity S 5.8mph Wind |
| Overcast | ||
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