Hermiston, Oregon Weather Conditions

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Current Conditions

  • 84°
  • Clear
  • Wind: SW 5 mph
  • Humidity: 35%
  • Visibility: 10.0 miles
  • Dew Point: 54°
  • Pressure: 29.98 in. +
  • Heat Index: 83

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Next 12 Hours

11  am
2  pm
5  pm
8  pm
11  pm
Clear
Clear
Clear
Clear
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Clear
Clear
86°
99°
102°
99°
82°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Thursday
  • Partly Cloudy
  • High: 104 °
  • Low: 73 °
  • Partly Cloudy
  • Friday
  • Chance of a Thunderstorm
  • High: 100 °
  • Low: 68 °
  • Chance of a Thunderstorm
  • Saturday
  • Chance of a Thunderstorm
  • High: 100 °
  • Low: 70 °
  • Chance of a Thunderstorm
  • Sunday
  • Partly Cloudy
  • High: 97 °
  • Low: 66 °
  • Partly Cloudy
  • Monday
  • Clear
  • High: 100 °
  • Low: 68 °
  • Clear

Forecast for Hermiston, Oregon

Updated: 8:00 AM PDT on July 31, 2014

  • Thursday

    Clear in the morning, then partly cloudy. High of 104F. Winds from the WSW at 5 to 10 mph shifting to the NNW in the afternoon.

  • Thursday Night

    Partly cloudy in the evening, then clear. Low of 73F. Winds from the SSW at 5 to 10 mph.

  • Friday

    Clear with a chance of a thunderstorm and a chance of rain. High of 100F. Winds from the WNW at 5 to 10 mph. Chance of rain 20%.

  • Friday Night

    Partly cloudy with a chance of a thunderstorm and a chance of rain. Low of 68F. Winds from the SW at 5 to 10 mph. Chance of rain 20%.

  • Saturday

    Clear with a chance of a thunderstorm and a chance of rain. High of 100F. Winds from the WSW at 5 to 10 mph. Chance of rain 20%.

  • Saturday Night

    Partly cloudy with a chance of rain. Low of 70F. Winds from the SW at 5 to 15 mph. Chance of rain 20%.

  • Sunday

    Clear. High of 97F. Winds from the WSW at 5 to 10 mph.

  • Sunday Night

    Clear. Low of 66F. Winds from the SW at 5 to 10 mph.

  • Monday

    Clear. High of 100F. Winds less than 5 mph.

  • Monday Night

    Clear. Low of 68F. Winds from the SW at 5 to 10 mph.

  • Tuesday

    Clear. High of 99F. Winds from the WSW at 5 to 10 mph.

  • Tuesday Night

    Clear. Low of 68F. Winds from the SW at 5 to 15 mph.

  • Wednesday

    Clear. High of 97F. Winds from the WSW at 5 to 10 mph.

  • Wednesday Night

    Clear. Low of 64F. Winds from the WSW at 5 to 15 mph.

  • Thursday

    Clear. High of 90F. Winds from the West at 5 to 10 mph.

  • Thursday Night

    Clear. Low of 66F. Winds from the WSW at 5 to 10 mph.

  • Friday

    Clear. High of 88F. Winds from the WSW at 5 to 10 mph.

  • Friday Night

    Clear. Low of 64F. Winds from the WSW at 5 to 10 mph.

  • Saturday

    Clear. High of 91F. Winds from the WSW at 5 to 10 mph.

  • Saturday Night

    Clear. Low of 63F. Winds from the WSW at 5 to 10 mph.

  • Sunday

    Partly cloudy. High of 82F. Winds from the West at 5 to 10 mph.

  • Sunday Night

    Clear. Low of 63F. Winds from the WSW at 5 to 10 mph.

Severe Weather Alert Descriptions

 Record Report  Statement as of 2:14 PM PDT on July 30, 2014


... New daily record high temperatures for July 29th...

Note: stations marked with * indicate that the station reports once
per day. For consistency... these values are considered to have
occurred on the day the observation was taken but may have actually
occurred (especially for Max temperature) on the previous day.

Station previous new records
                         record/year record began

*la grande(city), or 101 / 2003 101 (tied) 1887
pendleton(arpt), or 104 / 2003 104 (tied) 1934
Yakima,WA 102 / 2003 105 1909



Personal Weather Stations

Personal Weather Stations [Add your weather station!]

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

Updated: 10:33 AM PDT

Temperature: 89.6 °F Dew Point: 53 °F Humidity: 29% Wind: SW at 2.7 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 87 °F Graphs

Location: South Hill, Umatilla, OR

Updated: 10:33 AM PDT

Temperature: 86.1 °F Dew Point: 55 °F Humidity: 35% Wind: NE at 1.0 mph Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 85 °F Graphs

Location: MesoWest JUNIPR OR US UPR, Helix, OR

Updated: 7:00 AM PDT

Temperature: 77 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: MesoWest Reese OR US CPCRC, Echo, OR

Updated: 9:00 AM PDT

Temperature: 83 °F Dew Point: - Humidity: 29% Wind: WNW at 4 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

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

Updated: 9:15 AM PDT

Temperature: 82 °F Dew Point: 51 °F Humidity: 34% Wind: SW at 1 mph Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: Paterson, Paterson, WA

Updated: 10:20 AM PDT

Temperature: 80.9 °F Dew Point: 59 °F Humidity: 48% Wind: SSE at 4.0 mph Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: Pendleton-Stage Gulch Road, Pendleton, OR

Updated: 10:31 AM PDT

Temperature: 87.1 °F Dew Point: 59 °F Humidity: 38% Wind: WSW at 9.0 mph Pressure: 27.30 in Hourly Precipitation: 0.00 in Heat Index: 86 °F Graphs

Location: Riverside High School, Boardman, OR

Updated: 10:33 AM PDT

Temperature: 80.9 °F Dew Point: 59 °F Humidity: 47% Wind: Calm Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: MesoWest BARNHT OR US UPR, Pendleton, OR

Updated: 9:00 AM PDT

Temperature: 80 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Willow Run Golf Course, Boardman, OR

Updated: 10:33 AM PDT

Temperature: 83.8 °F Dew Point: 63 °F Humidity: 49% Wind: NE at 2.9 mph Pressure: 29.68 in Hourly Precipitation: 0.00 in Heat Index: 85 °F Graphs

Location: MesoWest BOARD OR US UPR, Boardman, OR

Updated: 9:00 AM PDT

Temperature: 71 °F Dew Point: - Humidity: - Wind: South at 3 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: South Kennewick, Kennewick, WA

Updated: 6:34 AM PDT

Temperature: 66.9 °F Dew Point: 53 °F Humidity: 61% Wind: Calm Pressure: 29.92 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Summit View, Summit View Kennewick, WA

Updated: 10:33 AM PDT

Temperature: 88.2 °F Dew Point: 51 °F Humidity: 28% Wind: SE at 3.4 mph Pressure: 29.40 in Hourly Precipitation: 0.00 in Heat Index: 86 °F Graphs

Location: National Weather Service, Pendleton, OR

Updated: 10:33 AM PDT

Temperature: 85.4 °F Dew Point: 47 °F Humidity: 26% Wind: SW at 8.4 mph Pressure: 30.05 in Hourly Precipitation: 0.00 in Heat Index: 83 °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 
1019 am PDT Thursday Jul 31 2014 


Updated aviation discussion 


Short term...update...an upper ridge will continue over the western 
U.S. Through Friday. The ridge axis will largely run through Nevada 
into Idaho, east of Oregon and Washington during this period. The 
upper level flow over the pacnw will become more south to 
southwesterly today. As such, lingering subtropical moisture will 
gradually work into our Washington zones. Weak disturbances within 
the upper flow will continue to cause the development of showers and 
thunderstorms through the next 24 hours. A wave moving through the 
area this morning is causing a few showers and the odd lightning 
strike over portions of our Oregon zones. Have updated morning 
forecasts to cover the area of showers associated with this wave. A 
second wave will move through the region late today and tonight. 
This will keep varying amounts of showers and storms going over our 
Oregon zones through tonight. Will have to look at the potential of 
at least a few showers drifting into south-central Washington 
overnight for the afternoon issuance. High temperatures will remain very 
warm, but should be 2-3 degrees cooler than yesterday due to 
increased cloud cover. Updates other than those already mentioned 
included adjustments to sky cover and tweaks to high temperatures and 
winds. 90 


&& 


Aviation...18z tafs...VFR conditions will prevail through the next 
24 hours. Expect mostly scattered middle and high clouds from cumulonimbus thunderstorm 
anvil debris and debris from convective cumulus towers producing 
showers over central Oregon and the ochoco-John Day Highlands as 
well as over the southern Blue Mountains. Thunderstorms will develop 
this afternoon starting around 21z or soon thereafter over the 
Mountain Ridge tops in central and east central Oregon. Kbdn and 
krdm have thunderstorms in the vicinity after 21z for several hours with thunderstorms likely 
to be nearby. Sustained winds will be light upslope less than 10 
kts, except at kdls where winds this afternoon will be 12-15 kts 
with gusts to 20 kts. Polan 


&& 


Long term...previous discussion...eastern Oregon and Washington 
will remain on the western side of an upper level ridge Saturday 
night and Sunday. A wave will move through the area and trigger 
thunderstorms Saturday night and Sunday in eastern Oregon and along 
the Washington Cascades. Monday and Tuesday dry westerly flow will 
develop and push the monsoonal moisture south and east. However 
enough instability and moisture may linger over the northeast Oregon 
mountains to trigger thunderstorms again during the 
afternoon/evening. 


&& 


Fire weather...warm and dry conditions continue under a ridge of high 
pressure with overnight humidity recovery poor to moderate. 
Thunderstorm chances will increase and spread north and east each 
day through the weekend. Most storms should stay south of the 
Washington border until Friday and Saturday. Storms that develop 
will be a mixture of wet and dry with precipitation ranging from a 
few hundredths of an inch to around a quarter of an inch. Red flag 
warnings are in effect for abundant lightning across central Oregon 
through Saturday. Scattered thunderstorms will be possible across 
the mountains of northeast Oregon and far southeast Washington 
starting this afternoon. The red flag warning for the northeast 
mountains starts this afternoon and GOES through Saturday. Dmh 


&& 


Preliminary point temps/pops... 
PDT 100 67 97 66 / 20 20 20 20 
alw 101 72 99 71 / 10 10 20 20 
psc 103 67 100 67 / 10 10 20 20 
ykm 99 66 98 67 / 0 10 20 20 
hri 101 66 100 66 / 10 10 20 20 
eln 100 61 95 61 / 0 10 20 20 
rdm 95 56 92 55 / 30 30 30 30 
lgd 95 59 92 60 / 30 30 30 30 
gcd 97 62 93 60 / 30 30 30 30 
dls 97 67 97 67 / 10 10 20 20 


&& 


PDT watches/warnings/advisories... 
or...red flag warning until 11 PM PDT Saturday orz503-505-506-509>511. 


Red flag warning from 1 PM this afternoon to 11 PM PDT Saturday 
orz050-502-507. 


Red flag warning until 11 PM PDT Saturday orz049. 


Washington...red flag warning from 1 PM this afternoon to 11 PM PDT Saturday 
waz030. 


&& 


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


$$ 


90/99/76/84 



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