Weather
Hermiston, Oregon
Current Conditions
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Almanac
Average High: 89°
Average Low: 58°
Record high/year: 111° (1928)
Record low/year: 41° (1924)
Sunrise: 5:30 AM
Sunset: 8:36 PM
Detailed History
Sun and Moon
Sunrise: 05:30 AM (PDT)
Moon Rise: 10:50 PM (PDT) 7 23
Sunset: 08:36 PM (PDT)
Moon Set: 11:27 AM (PDT) 7 23
Moon Phase
Next 12 Hours
Forecast data from the National Digital Forecast Database
5-Day Forecast
Forecast for Lower Columbia Basin
Tonight
Clear...breezy. Lows 51 to 56. West wind 15 to 25 mph becoming southwest 5 to 15 mph overnight.
Thursday
Sunny. Highs 87 to 93. West wind 5 to 15 mph shifting to the northeast in the afternoon.
Thursday Night
Clear. Lows 54 to 60. North wind 5 to 15 mph shifting to the south overnight.
Friday
Sunny. Highs 90 to 95. Southwest wind 5 to 10 mph increasing to west 10 to 20 mph in the afternoon.
Friday Night
Clear. Lows 59 to 64. West wind 10 to 20 mph.
Saturday
Sunny. Highs 87 to 92.
Saturday Night
Mostly clear. Lows 57 to 63.
Sunday through Wednesday
Clear. Highs 88 to 96. Lows 57 to 64.
Probability of Precipitation
| Place | Today | Tonight | Thursday | Friday | ||||
| Hermiston | 52°F | 0% | 92°F | 0% | 55°F | 0% | 94°F | 0% |
= Probability of Precipitation
Personal Weather Stations
Personal Weather Stations [Add your weather station!]
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Location: JW's Backyard - West Park Area, Hermiston, OR Updated: 8:24 PM PDT |
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| Temperature: 72.7 °F | Dew Point: 45 °F | Humidity: 37% | Wind: Calm | Pressure: 29.94 in | Hourly Precipitation: 0.00 in | Heat Index: 77 °F | Historical Graphs |
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Location: MesoWest HERMISTON R&E OR US AGRIMET, Hermiston, OR Updated: 7:15 PM PDT |
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| Temperature: 79 °F | Dew Point: 41 °F | Humidity: 25% | Wind: WNW at 6 mph | Pressure: - | Hourly Precipitation: 0.00 in | Heat Index: 78 °F | Historical Graphs |
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Location: South Hill, Umatilla, OR Updated: 8:16 PM PDT |
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| Temperature: 75.1 °F | Dew Point: 45 °F | Humidity: 34% | Wind: SW at 2.0 mph | Pressure: 29.90 in | Hourly Precipitation: - | Heat Index: 77 °F | Historical Graphs |
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Location: MesoWest ECHO OR US AGRIMET, Echo, OR Updated: 7:15 PM PDT |
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| Temperature: 78 °F | Dew Point: 39 °F | Humidity: 25% | Wind: West at 8 mph | Pressure: - | Hourly Precipitation: 0.00 in | Heat Index: 78 °F | Historical Graphs |
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Location: APRSWXNET Echo OR US, Echo, OR Updated: 7:56 PM PDT |
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| Temperature: 75 °F | Dew Point: 40 °F | Humidity: 28% | Wind: West at 6 mph | Pressure: 29.78 in | Hourly Precipitation: 0.00 in | Heat Index: 77 °F | Historical Graphs |
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Location: MesoWest Echo OR US UPR, Echo, OR Updated: 7:25 PM PDT |
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| Temperature: 77 °F | Dew Point: - | Humidity: - | Wind: Calm | Pressure: - | Hourly Precipitation: 0.00 in | Heat Index: 75 °F | Historical Graphs |
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Location: MesoWest HERMISTON OR US AGRIMET, Irrigon, OR Updated: 7:15 PM PDT |
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| Temperature: 77 °F | Dew Point: 44 °F | Humidity: 31% | Wind: WNW at 6 mph | Pressure: - | Hourly Precipitation: 0.00 in | Heat Index: 78 °F | Historical Graphs |
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Location: MesoWest Horse Heaven @ I-82 WA US WA DOT, Kennewick, WA Updated: 7:05 PM PDT |
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| Temperature: 77 °F | Dew Point: 41 °F | Humidity: 28% | Wind: SW at 9 mph | Pressure: 29.98 in | Hourly Precipitation: 0.00 in | Heat Index: 78 °F | Historical Graphs |
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Location: RAWS UMATILLA OR US, Irrigon, OR Updated: 7:29 PM PDT |
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| Temperature: 78 °F | Dew Point: 46 °F | Humidity: 32% | Wind: SSW at 10 mph | Pressure: - | Hourly Precipitation: 0.00 in | Heat Index: 78 °F | Historical Graphs |
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Location: MesoWest Lorenzen Road (I-84 MP 198.5) OR US ODOT, Echo, OR Updated: 6:20 PM PDT |
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| Temperature: 77 °F | Dew Point: 47 °F | Humidity: 34% | Wind: Calm | Pressure: - | Hourly Precipitation: 0.00 in | Heat Index: 78 °F | Historical Graphs |
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Location: Riverside High School, Boardman, OR Updated: 8:19 PM PDT |
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| Temperature: 73.9 °F | Dew Point: 47 °F | Humidity: 39% | Wind: SW at 10.0 mph | Pressure: 29.96 in | Hourly Precipitation: 0.00 in | Heat Index: 77 °F | Historical Graphs |
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Location: MesoWest Barnhart OR US UPR, Pendleton, OR Updated: 7:00 PM PDT |
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| Temperature: 81 °F | Dew Point: - | Humidity: - | Wind: Calm | Pressure: - | Hourly Precipitation: 0.00 in | Heat Index: 79 °F | Historical Graphs |
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Location: National Weather Service, Pendleton, OR Updated: 8:24 PM PDT |
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| Temperature: 72.0 °F | Dew Point: 38 °F | Humidity: 29% | Wind: WNW at 5.8 mph | Pressure: 30.00 in | Hourly Precipitation: 0.00 in | Heat Index: 76 °F | Historical Graphs |
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Location: MesoWest Castle OR US UPR, Boardman, OR Updated: 7:40 PM PDT |
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| Temperature: 76 °F | Dew Point: - | Humidity: - | Wind: NNE at 5 mph | Pressure: - | Hourly Precipitation: 0.00 in | Heat Index: 74 °F | Historical Graphs |
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MSN Maps of: |
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| Temperature | Dew Point | Humidity | Wind | Pressure | Hourly Precipitation | - | |
NWS Forecaster Discussion
682 fxus66 kpdt 232101 afdpdt Area forecast discussion National Weather Service Pendleton or 200 PM PDT Wednesday Jul 23 2008 Short term...tonight through Saturday...a ridge of high pressure will build along the coast tonight...and then the ridge axis will move east of the Cascades Thursday. Thursday night a southwest flow with weak disturbances is expected...as the ridge continues to shift eastward...but with a dry stable airmass mostly sunny skies should prevail. By Friday evening an upper level low pressure system will approach the coast and a surface front may bring marine air through the Columbia River gorge as far east as The Dalles. Further east Friday will be the warmest day of the short term. There may be enough instability Friday for cumulus buildups over the higher terrain...but precipitation is not expected. The cool front will cross most of eastern Oregon and Washington Friday night...creating a cooler and more stable air mass across the area Saturday. 80 Long term...Saturday night through Wednesday...no significant issues to work out through the extended. Medium range models are in above average agreement regarding the large scale pattern showing typical summertime high pressure across the southern and central tiers of the Continental U.S. With quasi-stationary troughing across the northeastern Pacific. This would place the region under a fairly dry southwest flow aloft. Differences remain in the details but do not see any major differences that would greatly affect the trends. Will see periods of breezy winds, particularly across the Cascades gaps and occasionally reaching east to the lower elevations such as the Columbia Basin. Temperatures will be around seasonal normals. /Jbonk && Aviation...VFR cigs/vsbys. Reduced visibility at kpdt is due to dust from local field plowing activity. Actual surface visibility remains p6sm. Only significant aviation concern is for winds through the Colombia gorge. Expect westerly sustained winds to generally be in the 20-25kt range, including kdls, with locally higher speeds expected. Also expect potential gusts in the 30-35kt range. Winds should back off around 07z tonight with much lesser westerlies lasting until around sunrise. Tomorrow, winds are expected to remain below 15kts along with some possible high clouds. /Jbonk && Preliminary point temps/pops... PDT 52 89 55 92 / 0 0 0 0 alw 56 89 60 91 / 0 0 0 0 psc 53 94 58 96 / 0 0 0 0 ykm 51 91 55 92 / 0 0 0 0 hri 52 92 55 94 / 0 0 0 0 eln 52 87 56 89 / 0 0 0 0 rdm 35 88 46 90 / 0 0 0 0 lgd 47 87 50 89 / 0 0 0 0 gcd 45 88 55 90 / 0 0 0 0 dls 53 89 59 88 / 0 0 0 0 && PDT watches/warnings/advisories... or...none. Washington...none. && $$ Ti:ggg for additional weather information, check our web site at... www.Weather.Gov/Pendleton 80/87/87