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Prosser Weather forecast
| Sa 21 | Su 22 | Mo 23 | Tu 24 | We 25 | Th 26 | Fr 27 | Sa 28 | |
| Tmax (°F) | 78 | 84 | 86 | 89 | 86 | 77 | 75 | 75 |
| Tmin (°F) | 46 | 48 | 57 | 57 | 62 | 50 | 55 | 50 |
| morning 24-06 |
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| a.m. 06-12 |
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| p.m. 12-18 |
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| evening 18-24 |
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| Rain risk | 10 % | 10 % | 20 % | 10 % | 25 % | 5 % | 5 % | 5 % |
| Sunshine hours |  |
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| (hrs) | 9.1 | 9.1 | 7.9 | 8.4 | 7.2 | 8.9 | 7.7 | 8.3 |
| UV index | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| Sunrise Sunset |
06:45 18:57 |
06:47 18:55 |
06:48 18:53 |
06:49 18:51 |
06:51 18:49 |
06:52 18:47 |
06:53 18:45 |
06:55 18:43 |
| Wind p.m. |  |
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| Bft | NW 1-2 | W 2 | W 2 | SW 2 | SW 4-5 | SW 3 | W 4 | N 2 |
Last updated: Sat 21 Sep 12:11 NZST
| Nearby Forecast Locations - Prosser | Distance |
| Grandview | 12.8 km |
| Sunnyside | 22.2 km |
| Benton City | 23.8 km |
| Richland | 38.0 km |
| West Richland | 39.6 km |
| Hanford | 42.8 km |
| Toppenish | 46.2 km |
| Umatilla | 50.1 km |
| Kennewick | 50.1 km |
| Pasco | 50.6 km |
| Pasco | 54.2 km |
| Hermiston | 55.3 km |
| Wapato | 56.1 km |
| Hermiston | 56.2 km |
| Yakima | 71.6 km |
| Selah | 80.7 km |
