Hermiston, Oregon Weather Conditions

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Current Conditions

  • 65°
  • Clear
  • Wind: SW 12 mph
  • Humidity: 52%
  • Visibility: 10.0 miles
  • Dew Point: 47°
  • Pressure: 29.81 in. +

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Next 12 Hours

9  pm
12  am
3  am
6  am
9  am
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
70°
61°
57°
55°
63°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Monday
  • Partly Cloudy
  • High: 80 °
  • Low: 53 °
  • Partly Cloudy
  • Tuesday
  • Clear
  • High: 81 °
  • Low: 55 °
  • Clear
  • Wednesday
  • Clear
  • High: 85 °
  • Low: 57 °
  • Clear
  • Thursday
  • Clear
  • High: 91 °
  • Low: 59 °
  • Clear
  • Friday
  • Clear
  • High: 93 °
  • Low: 62 °
  • Clear

Forecast for Hermiston, Oregon

Updated: 8:02 PM PDT on January 24, 2015

  • Sunday

    Partly cloudy. Lows overnight in the mid 50s.

  • Sunday Night

    A stray shower or thunderstorm is possible early. A few clouds. Low 54F. Winds SW at 10 to 20 mph.

  • Monday

    Partly cloudy skies. High around 80F. Winds WSW at 10 to 15 mph.

  • Monday Night

    A few clouds from time to time. Low 53F. Winds SW at 10 to 15 mph.

  • Tuesday

    A mainly sunny sky. High 81F. Winds W at 5 to 10 mph.

  • Tuesday Night

    Clear skies with a few passing clouds. Low around 55F. Winds SW at 5 to 10 mph.

  • Wednesday

    Sunny. High around 85F. Winds WNW at 5 to 10 mph.

  • Wednesday Night

    Clear skies. Low 57F. Winds S at 5 to 10 mph.

  • Thursday

    Sunny. High 91F. Winds WSW at 5 to 10 mph.

  • Thursday Night

    A mostly clear sky. Low 59F. Winds SSW at 5 to 10 mph.

  • Friday

    Sunny along with a few clouds. High 93F. Winds W at 5 to 10 mph.

  • Friday Night

    Generally fair. Low 62F. Winds SSW at 5 to 10 mph.

  • Saturday

    Sunny skies. High 94F. Winds WNW at 5 to 10 mph.

  • Saturday Night

    A few clouds. Low 62F. Winds SSW at 5 to 10 mph.

  • Sunday

    Partly cloudy skies. High 93F. Winds WNW at 5 to 10 mph.

  • Sunday Night

    Partly cloudy skies. Low around 60F. Winds SW at 10 to 15 mph.

  • Monday

    Intervals of clouds and sunshine. High 86F. Winds WSW at 10 to 20 mph.

  • Monday Night

    A few clouds. Low 56F. Winds SW at 10 to 20 mph.

  • Tuesday

    Mostly sunny skies. High 82F. Winds WSW at 10 to 15 mph.

  • Tuesday Night

    A few clouds. Low 54F. Winds SW at 10 to 15 mph.

  • Wednesday

    Sunshine and clouds mixed. High 82F. Winds W at 5 to 10 mph.

  • Wednesday Night

    Mainly clear. Low 54F. Winds SW at 5 to 10 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Southeast 11th Street, Hermiston, OR

Updated: 10:05 PM PDT

Temperature: 68.0 °F Dew Point: 50 °F Humidity: 52% Wind: North at - Pressure: 29.85 in Hourly Precipitation: - Heat Index: - Graphs

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

Updated: 10:07 PM PDT

Temperature: 65.3 °F Dew Point: 43 °F Humidity: 45% Wind: SW at 5.4 mph Pressure: 29.79 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: MesoWest, Hermiston, OR

Updated: 8:00 PM PDT

Temperature: 76 °F Dew Point: - Humidity: - Wind: WSW at 10 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: MesoWest, Hermiston, OR

Updated: 8:00 PM PDT

Temperature: 74 °F Dew Point: 50 °F Humidity: 42% Wind: SW at 7 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: South Hill, Umatilla, OR

Updated: 10:09 PM PDT

Temperature: 66.0 °F Dew Point: 47 °F Humidity: 51% Wind: Calm Pressure: 29.74 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: MesoWest, Hermiston, OR

Updated: 8:15 PM PDT

Temperature: 68 °F Dew Point: - Humidity: - Wind: WSW at 15 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: MesoWest, Echo, OR

Updated: 8:00 PM PDT

Temperature: 71 °F Dew Point: 49 °F Humidity: 46% Wind: WSW at 8 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: APRSWXNET, Echo, OR

Updated: 8:24 PM PDT

Temperature: 71 °F Dew Point: 49 °F Humidity: 46% Wind: SW at 7 mph Pressure: 29.80 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Irrigon Light, Plymouth, WA

Updated: 10:00 PM PDT

Temperature: 66.3 °F Dew Point: - Humidity: - Wind: North at - Pressure: 29.45 in Hourly Precipitation: - Heat Index: - Graphs

Location: MesoWest, Irrigon, OR

Updated: 8:00 PM PDT

Temperature: 73 °F Dew Point: 49 °F Humidity: 42% Wind: SW at 11 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: MesoWest, Irrigon, OR

Updated: 8:15 PM PDT

Temperature: 71 °F Dew Point: 49 °F Humidity: 47% Wind: SW at 17 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: MesoWest, Echo, OR

Updated: 8:00 PM PDT

Temperature: 73 °F Dew Point: 49 °F Humidity: 41% Wind: West at 6 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: MesoWest, Kennewick, WA

Updated: 7:15 PM PDT

Temperature: 73 °F Dew Point: 53 °F Humidity: 49% Wind: SW at 5 mph Pressure: 29.81 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: RAWS, Irrigon, OR

Updated: 8:29 PM PDT

Temperature: 71 °F Dew Point: 50 °F Humidity: 48% Wind: SSW at 16 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: APRSWXNET, Plymouth, WA

Updated: 8:25 PM PDT

Temperature: 68 °F Dew Point: 54 °F Humidity: 60% Wind: WSW at 13 mph Pressure: 29.74 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: MesoWest, Plymouth, WA

Updated: 8:15 PM PDT

Temperature: 69 °F Dew Point: 51 °F Humidity: 53% Wind: SW at 20 mph Pressure: 29.77 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Pendleton-Stage Gulch Road, Pendleton, OR

Updated: 9:55 PM PDT

Temperature: 65.7 °F Dew Point: 50 °F Humidity: 57% Wind: West at 7.0 mph Pressure: 29.44 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Riverside High School, Boardman, OR

Updated: 10:07 PM PDT

Temperature: 64.3 °F Dew Point: 50 °F Humidity: 61% Wind: SW at 22.0 mph Pressure: 29.82 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Port Kelley, Touchet, WA

Updated: 10:00 PM PDT

Temperature: 74.1 °F Dew Point: - Humidity: - Wind: North at - Pressure: 29.41 in Hourly Precipitation: - Heat Index: - Graphs

Location: Valley Vista, Kennewick, WA

Updated: 10:08 PM PDT

Temperature: 66.4 °F Dew Point: 52 °F Humidity: 61% Wind: SSE at 8.1 mph Pressure: 29.34 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Willow Run Golf Course, Boardman, OR

Updated: 10:09 PM PDT

Temperature: 63.0 °F Dew Point: 50 °F Humidity: 62% Wind: West at 10.3 mph Pressure: 29.79 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: MesoWest, Boardman, OR

Updated: 8:00 PM PDT

Temperature: 66 °F Dew Point: - Humidity: - Wind: SW at 4 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: APRSWXNET, Kennewick, WA

Updated: 8:29 PM PDT

Temperature: 72 °F Dew Point: 53 °F Humidity: 52% Wind: SSW at 3 mph Pressure: 29.74 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: South Kennewick, Kennewick, WA

Updated: 10:05 PM PDT

Temperature: 71.5 °F Dew Point: 47 °F Humidity: 42% Wind: WNW at 1.0 mph Pressure: 29.77 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: National Weather Service, Pendleton, OR

Updated: 10:08 PM PDT

Temperature: 65.3 °F Dew Point: 47 °F Humidity: 51% Wind: WNW at 11.6 mph Pressure: 29.85 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Pendleton or 
745 PM PDT sun may 24 2015 


Update...convection this evening has mostly been to the north and 
east of the forecast area. However there were some showers and weak 
thunderstorms over northern portions of the County Warning Area. The convection 
across the region is now dissipating due to the loss of daytime 
heating...and also drier and more stable air is moving into the 
region from the northwest. An upper low pressure system currently 
over southern British Columbia will continue to sag southeastward into northern 
Washington on Monday and then over northern Oregon on Tuesday. This 
system will not have as much moisture with it as the previous few 
upper lows. However there will still be enough moisture and 
instability for a chance of showers and a slight chance of 
thunderstorms in the afternoons and evenings over the mountains of 
northeast Oregon and along the Washington Cascade east slopes and 
adjacent valleys. Temperatures will be on a slow warming trend 
through the week and winds will remain relatively light. 88 


&& 


Aviation...06z tafs...VFR conditions are expected for the next 24 
hours. Winds are expected to remain below 15 kts except at kdls 
where they will become breezy 15 to 25 kts in the afternoons. 88 


&& 


Previous discussion... /issued 430 PM PDT sun may 24 2015/ 


Short term...today through Wednesday...an upper level low over 
southern British Columbia will move east tonight...then southeast 
Monday through Wednesday. As the low moves east tonight west to 
northwest flow will be over southeast Washington and eastern Oregon. 
This will bring drier air to the area. Onshore surface flow will 
keep windy conditions through the Cascade gaps, particularly The 
Gorge and Kittitas Valley. 


Cumulus has developed from central to northeast Oregon and along the 
Cascades. The best instability will be in the difluent flow ahead of 
the low in the northern blues and close to the low along the Washington 
Cascades where a few showers have already developed. These showers 
and thunderstorms will die off overnight, then redevelop Monday 
afternoon. A few showers may persist in the mountains overnight. As 
the low moves into eastern Washington Tuesday afternoon/evening a 
weak wave will rotate around the low and enhance showers in 
southeast WA, the lower Columbia Basin, and northeast Oregon. 
Wednesday wrap around moisture and instability may trigger showers 
and afternoon thunderstorms across the entire County Warning Area. Coonfield 


Long term...Wednesday night through Sunday...an upper low will move 
out of the area on Wednesday night and mountain showers will 
diminish. Then on Thursday a high pressure ridge will build over the 
region...but residual moisture and energy could still allow showers 
ot thunderstorms to develop over the Washington Cascades and the 
northeast mountains during the afternoon. On Friday the ridge will 
shift eastward and weaken...and a warm front will position itself 
across northeast Washington and extend down through Idaho. Southwest 
flow will therefore be over the local area and showers or 
thunderstorms could again develop over central Oregon...the 
Cascades...or the northeast mountains. This west-southwest flow will 
persist on Saturday and Sunday and a shortwave could bring a greater 
and more widespread chance for showers and thunderstorms both days. 
Despite the unsettled weather...temperatures will be above normal 
through the period with a gradual warming trend bringing daytime 
highs into the upper 70s to lower 90s. Cobb 


&& 


Preliminary point temps/pops... 
PDT 52 76 50 75 / 10 10 10 30 
alw 55 77 55 77 / 10 10 10 30 
psc 54 82 54 83 / 10 10 10 20 
ykm 54 79 53 79 / 20 10 20 30 
hri 53 79 51 79 / 10 10 10 10 
eln 53 77 53 80 / 20 10 20 40 
rdm 41 74 38 75 / 10 10 10 0 
lgd 47 72 46 71 / 20 20 20 20 
gcd 44 75 42 74 / 10 20 20 20 
dls 55 76 54 82 / 10 10 10 20 


&& 


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


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


$$ 


88/82/88 



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