Hermiston, Oregon Weather Conditions

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Current Conditions

  • 59°
  • Overcast
  • Wind: Calm
  • Humidity: 75%
  • Visibility: 10.0 miles
  • Dew Point: 51°
  • Pressure: 29.74 in. +

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Next 12 Hours

2  am
5  am
8  am
11  am
2  pm
Rain
Rain
Chance of Rain
Chance of Rain
Chance of Rain
Chance of Rain
Chance of Rain
Chance of Rain
Chance of Rain
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55°
55°
48°
61°
66°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Thursday
  • Chance of Rain
  • High: 68 °
  • Low: 43 °
  • Chance of Rain
  • Friday
  • Chance of Rain
  • High: 63 °
  • Low: 41 °
  • Chance of Rain
  • Saturday
  • Chance of Rain
  • High: 64 °
  • Low: 45 °
  • Chance of Rain
  • Sunday
  • Partly Cloudy
  • High: 61 °
  • Low: 37 °
  • Partly Cloudy
  • Monday
  • Partly Cloudy
  • High: 59 °
  • Low: 36 °
  • Partly Cloudy

Forecast for Hermiston, Oregon

Updated: 2:00 AM PDT on October 23, 2014

  • Thursday

    Overcast with a chance of rain. High of 68F. Winds from the SSW at 5 to 20 mph with gusts to 30 mph. Chance of rain 30%.

  • Thursday Night

    Partly cloudy with a chance of rain. Fog overnight. Low of 43F. Winds from the SW at 5 to 20 mph. Chance of rain 20%.

  • Friday

    Overcast with a chance of rain. High of 63F. Winds from the ESE at 5 to 10 mph shifting to the NE in the afternoon. Chance of rain 40%.

  • Friday Night

    Overcast with a chance of rain in the evening, then mostly cloudy. Fog overnight. Low of 41F. Winds from the NNW at 5 to 10 mph. Chance of rain 40%.

  • Saturday

    Overcast with a chance of rain in the afternoon. High of 64F. Breezy. Winds from the WNW at 15 to 20 mph. Chance of rain 20%.

  • Saturday Night

    Overcast in the evening, then clear. Low of 45F. Breezy. Winds from the SSW at 10 to 25 mph.

  • Sunday

    Partly cloudy. High of 61F. Breezy. Winds from the WSW at 20 to 25 mph.

  • Sunday Night

    Partly cloudy. Low of 37F. Breezy. Winds from the SW at 10 to 20 mph.

  • Monday

    Partly cloudy. High of 59F. Winds from the SW at 5 to 15 mph.

  • Monday Night

    Partly cloudy. Low of 36F. Winds less than 5 mph.

  • Tuesday

    Partly cloudy with a chance of rain. High of 59F. Winds from the SSW at 5 to 15 mph. Chance of rain 30%.

  • Tuesday Night

    Partly cloudy. Fog overnight. Low of 39F. Breezy. Winds from the SW at 15 to 20 mph.

  • Wednesday

    Clear. High of 59F. Winds from the SW at 5 to 15 mph shifting to the NW in the afternoon.

  • Wednesday Night

    Partly cloudy. Fog overnight. Low of 39F. Winds less than 5 mph.

  • Thursday

    Partly cloudy. High of 66F. Winds less than 5 mph.

  • Thursday Night

    Clear. Low of 39F. Winds less than 5 mph.

  • Friday

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

  • Friday Night

    Partly cloudy. Low of 41F. Winds less than 5 mph.

  • Saturday

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

  • Saturday Night

    Partly cloudy. Low of 39F. Winds less than 5 mph.

  • Sunday

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

  • Sunday Night

    Clear. Low of 39F. 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: 1:38 AM PDT

Temperature: 57.4 °F Dew Point: 53 °F Humidity: 85% Wind: SW at 5.4 mph Pressure: 29.76 in Hourly Precipitation: 0.00 in Graphs

Location: South Hill, Umatilla, OR

Updated: 1:38 AM PDT

Temperature: 59.0 °F Dew Point: 51 °F Humidity: 75% Wind: SSW at 6.0 mph Pressure: 29.77 in Hourly Precipitation: 0.01 in Graphs

Location: MesoWest JUNIPR OR US UPR, Helix, OR

Updated: 9:55 PM PDT

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

Location: MesoWest Reese OR US CPCRC, Echo, OR

Updated: 12:00 AM PDT

Temperature: 63 °F Dew Point: 46 °F Humidity: 53% Wind: SE at 9 mph Pressure: - Hourly Precipitation: 0.00 in Graphs

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

Updated: 12:15 AM PDT

Temperature: 60 °F Dew Point: 50 °F Humidity: 69% Wind: SW at 9 mph Pressure: 29.74 in Hourly Precipitation: 0.00 in Graphs

Location: RAWS UMATILLA OR US, Irrigon, OR

Updated: 12:29 AM PDT

Temperature: 58 °F Dew Point: 55 °F Humidity: 89% Wind: West at 3 mph Pressure: - Hourly Precipitation: 0.00 in Graphs

Location: Paterson, Paterson, WA

Updated: 1:34 AM PDT

Temperature: 59.2 °F Dew Point: 53 °F Humidity: 81% Wind: Calm Pressure: 29.76 in Hourly Precipitation: 0.00 in Graphs

Location: Pendleton-Stage Gulch Road, Pendleton, OR

Updated: 1:38 AM PDT

Temperature: 59.0 °F Dew Point: 50 °F Humidity: 72% Wind: Calm Pressure: 27.24 in Hourly Precipitation: 0.00 in Graphs

Location: Willow Run Golf Course, Boardman, OR

Updated: 1:39 AM PDT

Temperature: 58.3 °F Dew Point: 55 °F Humidity: 90% Wind: WSW at 7.4 mph Pressure: 29.47 in Hourly Precipitation: 0.00 in Graphs

Location: MesoWest BOARD OR US UPR, Boardman, OR

Updated: 12:00 AM PDT

Temperature: 61 °F Dew Point: - Humidity: - Wind: North at 2 mph Pressure: - Hourly Precipitation: 0.00 in Graphs

Location: South Kennewick, Kennewick, WA

Updated: 1:38 AM PDT

Temperature: 62.1 °F Dew Point: 50 °F Humidity: 65% Wind: West at 4.0 mph Pressure: 29.74 in Hourly Precipitation: 0.00 in Graphs

Location: National Weather Service, Pendleton, OR

Updated: 1:38 AM PDT

Temperature: 57.7 °F Dew Point: 49 °F Humidity: 73% Wind: WNW at 10.2 mph Pressure: 29.79 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 
1019 PM PDT Wednesday Oct 22 2014 


Updated aviation discussion 


Short term...tonight and Thursday...large upper level trough of low 
pressure continues over the Gulf of Alaska with a frontal boundary 
over the Pacific northwest. Precipitation along this front has been 
moving through the forecast area being pushed eastward by a 
shortwave coming around the bottom of the trough. Currently the 
front stretches from Spokane through Pendleton and down to Medford. 
This will move through the eastern portion of the forecast area 
overnight producing a steady light rain. Behind it a moist southwest 
flow with continued bands of precipitation will produce showers for 
the rest of the forecast area overnight and continue on Thursday for 
the entire forecast area. Will also continue to see some breezy 
south winds overnight but focused more over Oregon and the higher 
terrain. 


Aviation...06z tafs...overcast skies overnight with occasional rain 
showers will become broken on Thursday but remain VFR. Winds will 
be mostly out of a southerly direction and gusty at times. Winds 
will lessen some overnight...then become 15 to 25 miles per hour and shift 
southwesterly around midday Thursday. 


&& 


Previous disc... /issued 358 PM PDT Wednesday Oct 22 2014/ 


Short term...tonight through Friday night...an upper trough over 
the Gulf of Alaska and the eastern Pacific will keep the flow over 
the Pacific northwest west-southwesterly through Thursday. An upper 
level disturbance will push an associated cold front through the 
region tonight. As such, expect good chances of precipitation areawide 
during the tonight period. Winds will continue locally breezy over 
the mountains, the Grande Ronde Valley, the Wallowa valley and the 
Blue Mountain foothills prior to the frontal passage. A brief period 
of breezy winds may also accompany the frontal passage. On Thursday, 
expect showers to persist, especially near the Cascade crest and 
over the northeast Oregon mountains. There is just enough 
instability indicated over extreme northeast Oregon Thursday 
afternoon to warrant including a mention of thunder. The showers 
will wind down Thursday evening as high pressure aloft builds over 
the region in response to a southward digging of the offshore upper 
trough. The amount of expected digging by the trough has resulted in 
an expected slow down of the arrival of the next Pacific system. At 
this time still expect this next system's warm front to move north 
across the region, but with a slower timing. Thus will show the warm 
frontal precipitation mainly affecting our Oregon zones Friday and our 
Washington zones Friday night. Snow levels will remain above 5000 
feet through this entire period. 90 


Long term...Saturday through Wednesday...Saturday will begin mostly 
dry...except along the Cascades. However...breezy southerly winds 
can be expected of 15 to 25 miles per hour. Then as the upper trough and cold 
front move across the area late Saturday and Sunday...winds will 
shift westerly and surges of moisture will affect mainly the 
mountains. Snow levels will fall...but will remain above 4500 in 
Washington and above 5000 in Oregon so impacts will be minimal. 
Slightly drier conditions return Monday...but another upper level 
trough is expected to move across the area Tuesday and Wednesday. It 
is possible this trough may contain some leftover moisture and 
energy from tropical system Ana as it gets entrained into the 
westerly flow and merges with a middle-latitude system. However...the 
models do not agree well on the timing and intensity of the 
disturbance as it crosses the Pacific northwest. At this time there 
is confidence that unsettled weather will continue into the middle 
of next week...but it is uncertain how much precipitation will fall 
when and where. Cobb 






&& 


Preliminary point temps/pops... 
PDT 53 68 47 61 / 100 50 20 30 
alw 55 68 50 62 / 100 60 20 30 
psc 55 69 47 64 / 100 30 10 10 
ykm 46 62 41 59 / 100 20 20 20 
hri 53 69 46 63 / 100 30 20 20 
eln 47 61 39 60 / 100 20 20 10 
rdm 48 62 39 58 / 90 40 30 70 
lgd 52 61 47 58 / 90 80 40 50 
gcd 48 61 43 58 / 90 70 40 60 
dls 53 65 45 60 / 100 40 20 50 


&& 


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


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


$$ 


91/91/91 



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