Hermiston, Oregon Weather Conditions

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Current Conditions

  • 68°
  • Clear
  • Wind: SW 16 mph
  • Humidity: 43%
  • Visibility: 10.0 miles
  • Dew Point: 45°
  • Pressure: 29.84 in. 0

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Next 12 Hours

2  am
5  am
8  am
11  am
2  pm
Clear
Clear
Chance of Rain
Chance of Rain
Chance of Rain
Chance of Rain
Chance of a Thunderstorm
Chance of T-storms
Chance of a Thunderstorm
Chance of T-storms
59°
57°
63°
72°
81°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Friday
  • Chance of a Thunderstorm
  • High: 85 °
  • Low: 57 °
  • Chance of T-Storms
  • Saturday
  • Partly Cloudy
  • High: 84 °
  • Low: 57 °
  • Partly Cloudy
  • Sunday
  • Clear
  • High: 88 °
  • Low: 61 °
  • Clear
  • Monday
  • Partly Cloudy
  • High: 86 °
  • Low: 57 °
  • Partly Cloudy
  • Tuesday
  • Clear
  • High: 93 °
  • Low: 59 °
  • Clear

Forecast for Hermiston, Oregon

Updated: 2:00 AM PDT on August 22, 2014

  • Friday

    Partly cloudy with a chance of a thunderstorm and a chance of rain in the morning, then clear with a chance of a thunderstorm and a chance of rain. High of 82F. Winds from the WNW at 10 to 15 mph. Chance of rain 30%.

  • Friday Night

    Clear with a chance of a thunderstorm and a chance of rain. Low of 57F. Winds less than 5 mph. Chance of rain 30%.

  • Saturday

    Partly cloudy. High of 84F. Winds from the NW at 5 to 10 mph.

  • Saturday Night

    Partly cloudy in the evening, then clear. Low of 57F. Winds less than 5 mph.

  • Sunday

    Clear. High of 88F. Winds less than 5 mph.

  • Sunday Night

    Partly cloudy in the evening, then overcast. Low of 61F. Winds less than 5 mph.

  • Monday

    Partly cloudy in the morning, then clear. High of 86F. Winds less than 5 mph.

  • Monday Night

    Partly cloudy in the evening, then clear. Low of 57F. Winds less than 5 mph.

  • Tuesday

    Clear. High of 93F. Winds less than 5 mph.

  • Tuesday Night

    Clear. Low of 59F. Winds less than 5 mph.

  • Wednesday

    Partly cloudy. High of 93F. Winds less than 5 mph.

  • Wednesday Night

    Partly cloudy. Low of 61F. Winds from the SW at 10 to 15 mph.

  • Thursday

    Partly cloudy. High of 90F. Breezy. Winds from the WSW at 15 to 20 mph.

  • Thursday Night

    Clear. Low of 57F. Breezy. Winds from the WSW at 15 to 20 mph.

  • Friday

    Clear. High of 84F. Breezy. Winds from the WSW at 15 to 20 mph.

  • Friday Night

    Clear. Low of 52F. Winds from the WSW at 5 to 10 mph.

  • Saturday

    Clear. High of 84F. Winds from the West at 5 to 10 mph.

  • Saturday Night

    Clear. Low of 57F. Winds from the WSW at 5 to 10 mph.

  • Sunday

    Partly cloudy. High of 84F. Winds from the West at 5 to 10 mph.

  • Sunday Night

    Partly cloudy. Low of 57F. Winds from the WSW at 5 to 10 mph.

  • Monday

    Clear. High of 82F. Winds less than 5 mph.

  • Monday Night

    Clear. Low of 57F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

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

Updated: 12:50 AM PDT

Temperature: 66.2 °F Dew Point: 42 °F Humidity: 41% Wind: West at 2.7 mph Pressure: 29.82 in Hourly Precipitation: 0.00 in Graphs

Location: MesoWest ECHO OR US UPR, Echo, OR

Updated: 9:55 PM PDT

Temperature: 72 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Graphs

Location: MesoWest Horse Heaven @ I-82 WA US WA DOT, Kennewick, WA

Updated: 11:15 PM PDT

Temperature: 64 °F Dew Point: 43 °F Humidity: 46% Wind: South at 2 mph Pressure: 29.87 in Hourly Precipitation: 0.00 in Graphs

Location: RAWS UMATILLA OR US, Irrigon, OR

Updated: 11:29 PM PDT

Temperature: 68 °F Dew Point: 48 °F Humidity: 48% Wind: SW at 9 mph Pressure: - Hourly Precipitation: 0.00 in Graphs

Location: Paterson, Paterson, WA

Updated: 12:49 AM PDT

Temperature: 63.2 °F Dew Point: 47 °F Humidity: 56% Wind: NE at 5.0 mph Pressure: 29.83 in Hourly Precipitation: 0.00 in Graphs

Location: Pendleton-Stage Gulch Road, Pendleton, OR

Updated: 12:46 AM PDT

Temperature: 67.1 °F Dew Point: 47 °F Humidity: 48% Wind: WSW at 3.0 mph Pressure: - Hourly Precipitation: 0.00 in Graphs

Location: Riverside High School, Boardman, OR

Updated: 12:50 AM PDT

Temperature: 65.5 °F Dew Point: 48 °F Humidity: 53% Wind: WNW at 3.0 mph Pressure: 29.89 in Hourly Precipitation: 0.00 in Graphs

Location: MesoWest BARNHT OR US UPR, Pendleton, OR

Updated: 11:00 PM PDT

Temperature: 70 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Graphs

Location: Willow Run Golf Course, Boardman, OR

Updated: 12:50 AM PDT

Temperature: 63.0 °F Dew Point: 47 °F Humidity: 56% Wind: SW at 7.8 mph Pressure: 29.56 in Hourly Precipitation: 0.00 in Graphs

Location: South Kennewick, Kennewick, WA

Updated: 12:49 AM PDT

Temperature: 69.6 °F Dew Point: 42 °F Humidity: 37% Wind: WSW at 2.0 mph Pressure: 29.83 in Hourly Precipitation: 0.00 in Graphs

Location: Summit View, Summit View Kennewick, WA

Updated: 12:47 AM PDT

Temperature: 67.9 °F Dew Point: 47 °F Humidity: 47% Wind: Calm Pressure: 29.26 in Hourly Precipitation: 0.00 in Graphs

Location: National Weather Service, Pendleton, OR

Updated: 12:50 AM PDT

Temperature: 66.6 °F Dew Point: 43 °F Humidity: 42% Wind: Calm Pressure: 29.91 in Hourly Precipitation: 0.00 in Graphs

Location: APRSWXNET Helix OR US, Helix, OR

Updated: 11:50 PM PDT

Temperature: 64 °F Dew Point: 43 °F Humidity: 47% Wind: North at 9 mph Pressure: 29.67 in Hourly Precipitation: 0.00 in Graphs

Location: Middle Cold Springs Creek-Helix 6SW, Pendleton, OR

Updated: 10:45 PM PDT

Temperature: 65.1 °F Dew Point: 43 °F Humidity: 45% Wind: South at 7.0 mph Pressure: 29.90 in Hourly Precipitation: 0.00 in Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Pendleton or 
1035 PM PDT Thursday Aug 21 2014 


Short term...water vapor showing upper low and jet moving into the 
Pacific northwest this evening. Thunderstorms have been developing 
over central and eastern Washington...north of our forecast area for 
the moment. Models show the potential for some of this activity to 
develop over the southern Washington Cascades and east slopes late 
this evening and overnight. Current forecast has this covered. 
Remainder of the region will be partly cloudy. The upper low will be 
directly over the area Friday and will result in showers and 
thunderstorms. Expect this activity will continue into Friday 
evening then taper off overnight. Cloud cover and a cool airmass 
aloft will produce highs in the 70s with a few locations into the 
lower 80s. As the upper low moves off into Idaho Saturday wrap 
around moisture will bring clouds and showers for The Blues and 
Wallowa County. 94 


Aviation...06z tafs. Scattered-broken 100-200 overnight. Winds 5-15kt. 
Increasing chance of showers with isolated thunderstorms on Friday 
as an upper low drifts over the area. Ceilings will lower to 
050-090. Winds 10-20kt. 94 


&& 


Previous disc... /issued 152 PM PDT Thursday Aug 21 2014/ 


Short term...tonight through Sunday...the progression of the 
overall trough pattern over the region transitioning to a closed low 
continues. Currently the shortwave dropping into the trough which 
will result in the closing off of the low pressure is over Vancouver 
Island. It is instigating some convection over northern Washington 
and down the east slopes of the Cascades into Kittitas County. This 
will lead to some possible showers over the central Washington 
Cascades late this afternoon and continuing overnight as the low 
pressure settles over that area. Also starting to see some shallow 
convection taking place over northern Blue Mountains and Wallowa 
County. This could also lead to some showers overnight for that 
area. The brunt of the showers and potential thunderstorms will come 
on Friday with the upper level low being centered over the forecast 
area. Expect a chance of showers and thunderstorms over the 
Washington Cascades and eastern mountains with just a slight chance 
rest of the forecast area...except central Oregon that looks to 
remain dry. The low will shift eastward Friday night with showers 
decreasing and be over the northern rockies on Saturday and Sunday. 
This will leave the forecast area under a cool and slightly unstable 
atmosphere resulting in some lingering showers for the Washington 
Cascades and eastern mountains over the weekend. Temperatures will 
remain cool and below normal through the short term. 


Long term...Sunday night through Thursday...ec and GFS in fair 
agreement on transition from trough on Monday to ridge on Tuesday 
and back to a broad trough with westerly flow on Thursday. 
Temperatures will rise to above normal by midweek with the ridge. A 
few thunderstorms over mainly the eastern mountains are possible 
Monday with the departing trough. 


&& 


Preliminary point temps/pops... 
PDT 54 79 57 80 / 10 20 40 10 
alw 58 80 60 79 / 10 20 40 10 
psc 55 82 59 83 / 10 20 30 10 
ykm 55 79 57 82 / 20 40 30 10 
hri 54 82 57 84 / 10 20 30 10 
eln 56 78 54 81 / 20 50 30 10 
rdm 44 74 45 75 / 0 10 10 0 
lgd 50 73 50 71 / 10 30 50 20 
gcd 46 73 48 71 / 10 20 20 10 
dls 57 80 59 85 / 10 30 20 0 


&& 


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


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


$$ 


94 












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