Hermiston, Oregon Weather Conditions

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Current Conditions

  • 75°
  • Clear
  • Wind: Calm
  • Humidity: 22%
  • Visibility: 10.0 miles
  • Dew Point: 33°
  • Pressure: 29.79 in. -

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Next 12 Hours

1  pm
4  pm
7  pm
10  pm
1  am
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
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75°
80°
74°
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53°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Monday
  • Clear
  • High: 81 °
  • Low: 43 °
  • Clear
  • Tuesday
  • Clear
  • High: 68 °
  • Low: 41 °
  • Clear
  • Wednesday
  • Clear
  • High: 67 °
  • Low: 39 °
  • Clear
  • Thursday
  • Clear
  • High: 74 °
  • Low: 43 °
  • Clear
  • Friday
  • Clear
  • High: 79 °
  • Low: 44 °
  • Clear

Forecast for Hermiston, Oregon

Updated: 11:21 AM PDT on January 04, 2015

  • Monday

    Sunny. High 81F. Winds W at 15 to 25 mph.

  • Monday Night

    A clear sky. Low 43F. Winds WSW at 15 to 25 mph.

  • Tuesday

    Mainly sunny. High 68F. Winds WSW at 10 to 20 mph.

  • Tuesday Night

    Clear. Low 41F. Winds WSW at 10 to 20 mph.

  • Wednesday

    Mostly sunny skies. High 67F. Winds W at 5 to 10 mph.

  • Wednesday Night

    Mostly clear skies. Low 39F. Winds WSW at 5 to 10 mph.

  • Thursday

    Except for a few afternoon clouds, mainly sunny. High 74F. Winds N at 10 to 15 mph.

  • Thursday Night

    Partly cloudy skies. Low 43F. Winds NNE at 5 to 10 mph.

  • Friday

    A mainly sunny sky. High 79F. Winds N at 10 to 15 mph.

  • Friday Night

    Clear skies. Low 44F. Winds light and variable.

  • Saturday

    Sunny, along with a few afternoon clouds. High around 80F. Winds W at 10 to 15 mph.

  • Saturday Night

    Partly cloudy skies. Low 47F. Winds SW at 10 to 15 mph.

  • Sunday

    Sunny along with a few clouds. High 79F. Winds light and variable.

  • Sunday Night

    Partly cloudy early with increasing clouds overnight. Low around 45F. Winds SW at 10 to 15 mph.

  • Monday

    Sunshine and clouds mixed. High around 75F. Winds WSW at 5 to 10 mph.

  • Monday Night

    A few clouds from time to time. Low around 45F. Winds SW at 5 to 10 mph.

  • Tuesday

    Partly cloudy skies. High 76F. Winds W at 5 to 10 mph.

  • Tuesday Night

    Partly cloudy. Low around 45F. Winds SW at 5 to 10 mph.

  • Wednesday

    Partly cloudy skies in the morning will give way to cloudy skies during the afternoon. High 77F. Winds W at 5 to 10 mph.

  • Wednesday Night

    Partly cloudy. Low around 45F. Winds WSW at 10 to 15 mph.

  • Thursday

    Partly cloudy skies. High 77F. Winds W at 5 to 10 mph.

  • Thursday Night

    Partly cloudy skies. Low 44F. Winds SW at 5 to 10 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Southeast 11th Street, Hermiston, OR

Updated: 1:02 PM PDT

Temperature: 73.9 °F Dew Point: 43 °F Humidity: 33% Wind: North at - Pressure: 29.82 in Hourly Precipitation: - Heat Index: 77 °F Graphs

Location: West Park Area, JW's Backyard, Hermiston, OR

Updated: 1:04 PM PDT

Temperature: 78.6 °F Dew Point: 39 °F Humidity: 24% Wind: Calm Pressure: 29.79 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: APRSWXNET, Hermiston, OR

Updated: 12:31 PM PDT

Temperature: 74 °F Dew Point: 35 °F Humidity: 24% Wind: West at 2 mph Pressure: 29.80 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: South Hill, Umatilla, OR

Updated: 1:04 PM PDT

Temperature: 74.5 °F Dew Point: 41 °F Humidity: 30% Wind: Calm Pressure: 29.70 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: APRSWXNET, Echo, OR

Updated: 12:34 PM PDT

Temperature: 74 °F Dew Point: 41 °F Humidity: 30% Wind: NNE at 6 mph Pressure: 29.82 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Irrigon Light, Plymouth, WA

Updated: 1:01 PM PDT

Temperature: 67.7 °F Dew Point: - Humidity: - Wind: North at - Pressure: 29.46 in Hourly Precipitation: - Heat Index: - Graphs

Location: APRSWXNET, Helix, OR

Updated: 12:33 PM PDT

Temperature: 70 °F Dew Point: 36 °F Humidity: 29% Wind: NW at 5 mph Pressure: 29.78 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: MesoWest, Kennewick, WA

Updated: 11:15 AM PDT

Temperature: 65 °F Dew Point: 35 °F Humidity: 33% Wind: SW at 2 mph Pressure: 29.85 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: RAWS, Irrigon, OR

Updated: 12:29 PM PDT

Temperature: 72 °F Dew Point: 38 °F Humidity: 29% Wind: NNW at 4 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: East Paterson, Paterson, WA

Updated: 12:44 PM PDT

Temperature: 79.5 °F Dew Point: 37 °F Humidity: 22% Wind: South at 4.2 mph Pressure: 29.39 in Hourly Precipitation: - Heat Index: 78 °F Graphs

Location: Valley Vista, Kennewick, WA

Updated: 1:05 PM PDT

Temperature: 74.1 °F Dew Point: 16 °F Humidity: 11% Wind: South at 9.6 mph Pressure: 29.32 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Willow Run Golf Course, Boardman, OR

Updated: 1:05 PM PDT

Temperature: 74.1 °F Dew Point: 46 °F Humidity: 37% Wind: NNE at 4.7 mph Pressure: 29.79 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: MesoWest, Boardman, OR

Updated: 12:00 PM PDT

Temperature: 65 °F Dew Point: - Humidity: - Wind: NE at 2 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: APRSWXNET, Kennewick, WA

Updated: 12:30 PM PDT

Temperature: 75 °F Dew Point: 45 °F Humidity: 35% Wind: East at 1 mph Pressure: 29.80 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: South Kennewick, Kennewick, WA

Updated: 1:04 PM PDT

Temperature: 79.0 °F Dew Point: 42 °F Humidity: 27% Wind: NNE at 1.0 mph Pressure: 29.76 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: National Weather Service, Pendleton, OR

Updated: 1:05 PM PDT

Temperature: 73.2 °F Dew Point: 32 °F Humidity: 22% Wind: Calm Pressure: 29.82 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: APRSWXNET, Helix, OR

Updated: 12:23 PM PDT

Temperature: 72 °F Dew Point: 34 °F Humidity: 25% Wind: East at 4 mph Pressure: 29.62 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion...updated 
National Weather Service Pendleton or 
1030 am PDT Monday may 4 2015 


..updated aviation discussion... 


Short term...today through Tuesday...today will be the last day 
under a ridge of high pressure so expecting overall very warm 
temperatures and light winds. The approaching upper level low 
pressure system will start to trigger some instability over 
northeast Oregon this afternoon and overnight leading to some 
showers and possible thunderstorms. The upper level low will being 
to move inland overnight and Tuesday. Temperatures will be cooler on 
Tuesday and westerly winds will begin to increase overnight. The 
threat of showers and thunderstorms will shift to the Cascades and 
east slopes on Tuesday. 


&& 


Aviation...18z tafs...VFR conditions will persist for the next 24 
hours across all taf sites. Few-scattered middle and high clouds can be 
expected as southwest flow brings more moisture into the region. A 
front will cause winds to increase after 18z and be mainly out of 
the west-northwest. Expect winds to be 10-15 kts...gusting as high as 25 kts. 
Winds will not be as gusty on Tuesday. Cobb 


&& 


Previous discussion... /issued 418 am PDT Monday may 4 2015/ 


Short term...today through Wednesday...models are in good agreement 
in the short term in bringing an upper trough into the Pacific 
northwest for the next couple of days. The flow aloft will switch to 
be from the southwest today which will begin transport of increasing 
instability and moisture into the County Warning Area. This will result in afternoon 
thunderstorms...especially over the mountains. This does not look 
like a huge thunderstorm outbreak and most storms will be weak to 
moderate and at this time not expecting any severe storms. 
Thunderstorms will be possible Tuesday and Wednesday as 
well...especially over the mountains. Temperatures today will be the 
warmest of the next few days with maximum readings in the middle 70s to 
around 80...with mostly 60s to lower 70s in the mountains. 
Temperatures will cool down about 10 degrees on Tuesday from today 
due to more cloud cover the chance for showers besides cooler air 
aloft moving in with the upper trough. Wednesday will have even 
cooler temperatures. Winds will be mostly light but there could be 
locally breezy conditions in the afternoons and evenings in the 
Kittitas Valley and the eastern Columbia River gorge and possibly 
the basin and Blue Mountain foothills. 


Long term...Wednesday night through Sunday...probability of precipitation for the extended 
have been significantly modified for the track of the low pressure 
system. The low will continue to push south of the area Wednesday 
evening. Have kept a slight chance of thunder over the east slopes 
of the Cascades...central Oregon...and northeast mountains for the 
evening. By Thursday evening the low will be centered over the 
California/Nevada boarder west of Reno...leaving a deformation zone over 
portions of central and northeast Oregon. Probability of precipitation north of this area 
have been cut back to less than 15 percent...therefore no mention of 
showers will be north of central Oregon or west of the Blue 
Mountains on Friday. Northwest flow Friday evening as a weak ridge 
attempts to rebuild...will keep most areas dry...will allow for some 
probability of precipitation along the east slopes of the Cascades...and northeast 
mountains...due to the uncertainty and potential spill over from 
west side upslope showers. GFS hints at another disturbance to move 
over the area Saturday night into Sunday. By Sunday evening the 
model hints that the weak disturbance will close off as a low 
centered over the or/California boarder off the coast. That could present a 
decent thunderstorm scenario for central and possibly parts of 
northeast Oregon...but will hold off on mention of thunder for 
now...as European model (ecmwf) has a different solution. Weber 


&& 


Preliminary point temps/pops... 
PDT 77 46 65 39 / 0 0 10 20 
alw 79 47 67 42 / 0 10 10 20 
psc 82 46 70 41 / 0 0 10 20 
ykm 79 45 66 38 / 0 0 20 30 
hri 81 46 69 41 / 0 0 10 20 
eln 75 44 63 37 / 0 0 20 30 
rdm 76 36 61 32 / 0 0 10 10 
lgd 76 41 62 37 / 20 20 10 10 
gcd 82 41 64 35 / 20 10 10 10 
dls 79 46 66 41 / 0 10 20 30 


&& 


PDT watches/warnings/advisories... 
or...none. 
Washington...none. 
&& 


For additional weather information, check our web site at... 
www.Weather.Gov/Pendleton 


$$ 


91/82/82 






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