Ontario, Oregon Weather Conditions

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Current Conditions

  • 31°
  • Clear
  • Wind: SW 4 mph
  • Humidity: 67%
  • Visibility: 10.0 miles
  • Dew Point: 21°
  • Pressure: 30.46 in. 0
  • Heat Index: 28

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Next 12 Hours

1  am
4  am
7  am
10  am
1  pm
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
35°
33°
32°
41°
54°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Friday
  • Clear
  • High: 61 °
  • Low: 35 °
  • Clear
  • Saturday
  • Partly Cloudy
  • High: 64 °
  • Low: 34 °
  • Partly Cloudy
  • Sunday
  • Clear
  • High: 67 °
  • Low: 37 °
  • Clear
  • Monday
  • Clear
  • High: 68 °
  • Low: 39 °
  • Clear
  • Tuesday
  • Clear
  • High: 69 °
  • Low: 46 °
  • Clear

Forecast for Ontario, Oregon

Updated: 9:19 PM MST on January 05, 2015

  • Friday

    Mainly sunny. High 61F. Winds light and variable.

  • Friday Night

    Partly cloudy. Low around 35F. Winds light and variable.

  • Saturday

    Partly cloudy skies. High 64F. Winds light and variable.

  • Saturday Night

    Clear. Low 34F. Winds light and variable.

  • Sunday

    Sunny skies. High 67F. Winds light and variable.

  • Sunday Night

    Clear skies. Low 37F. Winds light and variable.

  • Monday

    Sunny. High 68F. Winds light and variable.

  • Monday Night

    Clear skies. Low 39F. Winds light and variable.

  • Tuesday

    Sunshine and some clouds. High 69F. Winds SE at 5 to 10 mph.

  • Tuesday Night

    Cloudy. Low 46F. Winds SSW at 5 to 10 mph.

  • Wednesday

    Cloudy. High 64F. Winds S at 5 to 10 mph.

  • Wednesday Night

    Partly cloudy skies. Low 44F. Winds light and variable.

  • Thursday

    A few clouds from time to time. High 66F. Winds light and variable.

  • Thursday Night

    A mostly clear sky. Low 42F. Winds NNW at 5 to 10 mph.

  • Friday

    Mainly sunny. High 67F. Winds light and variable.

  • Friday Night

    Clear skies. Low 42F. Winds light and variable.

  • Saturday

    Generally sunny. High 67F. Winds light and variable.

  • Saturday Night

    Partly cloudy. Low 41F. Winds light and variable.

  • Sunday

    Sunshine along with some cloudy intervals. High 64F. Winds light and variable.

  • Sunday Night

    A few clouds from time to time. Low 41F. Winds light and variable.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Payette Foothills, Payette, ID

Updated: 12:14 AM MST

Temperature: 26.4 °F Dew Point: 32 °F Humidity: 24% Wind: Calm Pressure: 28.02 in Hourly Precipitation: 0.00 in Windchill: 26 °F Graphs

Location: ITD I-84/US-95 Interchange ID US, Fruitland, ID

Updated: 11:45 PM MST

Temperature: 38 °F Dew Point: 27 °F Humidity: 62% Wind: WNW at 5 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 34 °F Graphs

Location: MesoWest WOOD ID US UPR, Payette, ID

Updated: 11:25 PM MST

Temperature: 31 °F Dew Point: - Humidity: - Wind: West at 1 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: NE 25th/Payette Heights Rd., Payette, ID

Updated: 12:25 AM MST

Temperature: 27.3 °F Dew Point: 21 °F Humidity: 78% Wind: Calm Pressure: 30.56 in Hourly Precipitation: 0.00 in Windchill: 27 °F Graphs

Location: MesoWest NYSSA OR US UPR, Fruitland, ID

Updated: 10:45 PM MST

Temperature: 32 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

Location: Sunnyside Dairy (2mi S of Weiser), Weiser, ID

Updated: 12:22 AM MST

Temperature: 31.7 °F Dew Point: 24 °F Humidity: 73% Wind: North at 2.0 mph Pressure: 30.47 in Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

Location: RAWS ALKALI FLAT OR US, Vale, OR

Updated: 11:09 PM MST

Temperature: 39 °F Dew Point: 21 °F Humidity: 48% Wind: NE at 1 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: Annex, Ontario, OR

Updated: 12:25 AM MST

Temperature: 34.0 °F Dew Point: 25 °F Humidity: 70% Wind: Calm Pressure: 30.49 in Hourly Precipitation: 0.00 in Windchill: 34 °F Graphs

Location: APRSWXNET New Plymouth ID US, New Plymouth, ID

Updated: 11:57 PM MST

Temperature: 37 °F Dew Point: 24 °F Humidity: 59% Wind: West at 1 mph Pressure: 30.39 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: ITD Black Canyon ID US, New Plymouth, ID

Updated: 11:29 PM MST

Temperature: 35 °F Dew Point: 22 °F Humidity: 60% Wind: NNW at 2 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 35 °F Graphs

Location: MesoWest COBB ID US UPR, Weiser, ID

Updated: 11:00 PM MST

Temperature: 36 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: MesoWest PARMA ID US UPR, Parma, ID

Updated: 10:00 PM MST

Temperature: 36 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: HADS BULLY CREEK RESERVOIR NEAR VALE OR US USBR, Vale, OR

Updated: 11:45 PM MST

Temperature: 37 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Mann Creek, Weiser, ID

Updated: 12:11 AM MST

Temperature: 33.8 °F Dew Point: 23 °F Humidity: 65% Wind: NNW at 2.7 mph Pressure: 30.33 in Hourly Precipitation: - Windchill: 34 °F Graphs

Location: RAWS CATFISH ID US, Huntington, OR

Updated: 9:52 PM PST

Temperature: 43 °F Dew Point: 19 °F Humidity: 37% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Boise Idaho 
902 PM MST Thursday Mar 5 2015 


Discussion...mild temperatures around 10 degrees above normal are 
expected through next week. Model agreement is still good that the 
mild ridge will last through Tuesday and some energy will supress 
the ridge Wednesday. Mountain lows will be especially mild with the 
expected clouds Tue/Wed...around 30 to 35 when normal mountain lows 
are in the middle teens. Winds generally less than 10 miles per hour except northwest 
Magic Valley through noon Friday when NE winds around 15 miles per hour blow 
due to a surface high to their NE. 


&& 


Aviation...VFR under scattered high clouds. Surface winds 10 kts or 
less. Winds aloft generally northwest 10-15 kts up through 10k feet 
mean sea level...except central Idaho 20-25 kts. Winds aloft becoming west and 
calm after 06/20z. 


Weekend outlook...expect VFR under scattered to broken high clouds. 
Surface winds light and variable. 


&& 


Previous discussion... 
short term...tonight through Saturday...an upper level ridge will 
creep closer to the area through Saturday...keeping US warm and 
dry with only high clouds. An inversion will develop...keeping 
middle-elevation mountains relatively warm. Winds will be light 
through the short term. 


Long term...Saturday night through Tuesday...upper level ridge 
with its axis roughly along the West Coast will remain in place 
through at least Tuesday. Temperatures will warm during this 
period to 10 or more degrees above normal. Conditions will remain 
dry. 


Tuesday night through Thursday...a closed upper level low should 
move inland off the Pacific northwest Tuesday night and make it 
to southeast Oregon Wednesday. Both southeast Oregon and 
southwest Idaho have a chance for precipitation with the trough/S 
passage. Expect precipitation in the form of rain...except in the 
higher elevations above 6500 feet. Maximum temperatures will be 5-10 
degrees above normal with a gradual rise in temperatures as skies 
clear. 


&& 


Boi watches/warnings/advisories... 
Idaho...none. 
Or...none. 


&& 


$$ 


Weather.Gov/Boise 


Discussion...vm 
aviation.....Ab 
previous short term...snow pellets 
previous long term....ja/ab 






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