Ontario, Oregon Weather Conditions

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Current Conditions

  • 66°
  • Clear
  • Wind: East 5 mph
  • Humidity: 25%
  • Visibility: 10.0 miles
  • Dew Point: 29°
  • Pressure: 30.20 in. 0

Select a Section

Click a section below for more information.

Next 12 Hours

8  pm
11  pm
2  am
5  am
8  am
Clear
Clear
Clear
Clear
Partly Cloudy
Partly Cloudy
Clear
Clear
Clear
Clear
60°
48°
43°
40°
39°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Monday
  • Clear
  • High: 75 °
  • Low: 44 °
  • Clear
  • Tuesday
  • Partly Cloudy
  • High: 60 °
  • Low: 33 °
  • Partly Cloudy
  • Wednesday
  • Clear
  • High: 57 °
  • Low: 33 °
  • Clear
  • Thursday
  • Partly Cloudy
  • High: 58 °
  • Low: 32 °
  • Partly Cloudy
  • Friday
  • Clear
  • High: 61 °
  • Low: 35 °
  • Clear

Forecast for Ontario, Oregon

Updated: 3:19 PM MDT on January 29, 2015

  • Sunday

    A few clouds. Lows overnight in the upper 30s.

  • Sunday Night

    Mainly clear skies. Low 38F. Winds light and variable.

  • Monday

    Generally sunny despite a few afternoon clouds. High near 75F. Winds light and variable.

  • Monday Night

    A few clouds. Low 44F. Winds light and variable.

  • Tuesday

    Sunny skies during the morning hours will become overcast in the afternoon. High around 60F. Winds WNW at 15 to 25 mph.

  • Tuesday Night

    Mostly cloudy skies early will become partly cloudy late. Low 33F. Winds WNW at 10 to 20 mph.

  • Wednesday

    Generally sunny despite a few afternoon clouds. High 57F. Winds WNW at 5 to 10 mph.

  • Wednesday Night

    Clear to partly cloudy. Low 33F. Winds NW at 5 to 10 mph.

  • Thursday

    Intervals of clouds and sunshine. High 58F. Winds NW at 10 to 20 mph.

  • Thursday Night

    Clear skies. Low 32F. Winds NW at 10 to 15 mph.

  • Friday

    Sunshine and some clouds. High 61F. Winds light and variable.

  • Friday Night

    Mostly clear skies. Low near 35F. Winds light and variable.

  • Saturday

    Sunshine and clouds mixed. High 63F. Winds WSW at 5 to 10 mph.

  • Saturday Night

    Partly cloudy skies. Low 36F. Winds W at 5 to 10 mph.

  • Sunday

    Intervals of clouds and sunshine in the morning with more clouds for later in the day. High 58F. Winds W at 5 to 10 mph.

  • Sunday Night

    Clear to partly cloudy. Low around 35F. Winds NW at 5 to 10 mph.

  • Monday

    Generally sunny despite a few afternoon clouds. High 59F. Winds SW at 5 to 10 mph.

  • Monday Night

    A few clouds. Low 36F. Winds WNW at 5 to 10 mph.

  • Tuesday

    Partly cloudy skies. High 61F. Winds WSW at 5 to 10 mph.

  • Tuesday Night

    Mostly cloudy skies with a few showers late. Low 36F. Winds WSW at 5 to 10 mph. Chance of rain 30%.

  • Wednesday

    A few showers early with mostly cloudy conditions later in the day. High 62F. Winds WSW at 5 to 10 mph. Chance of rain 30%.

  • Wednesday Night

    Partly cloudy. Low 39F. Winds WNW at 5 to 10 mph.

Severe Weather Alert Descriptions

 Public Information Statement  Statement as of 2:49 PM MDT on March 29, 2015


... Record Max temperatures forecast for Monday March thirtieth...

Listed below are cities with the forecast temperature... the
record temperature... the year of the record temperature... and the
period of record.

... Southwest Idaho...

City... ... ... Forecast temp... record temp... year set... years
McCall... ... ... ... .64... ... ... ... 65... ... ... .1994... ... 102
Twin Falls city... .76... ... ... ... 78... ... ... .2004... ... .69
Fairfield... ... ... .70... ... ... ... 66... ... ... .1992... ... .61

... Southeast Oregon...

City... ... ... Forecast temp... record temp... year set... years
Burns... ... ... ... ..74... ... ... ... 75... ... ... .1966... ... .84
Rome... ... ... ... ... 76... ... ... ... 79... ... ... .2004... ... .59



Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Payette Foothills, Payette, ID

Updated: 6:59 PM MDT

Temperature: 60.4 °F Dew Point: 32 °F Humidity: 19% Wind: Calm Pressure: 27.82 in Hourly Precipitation: 0.00 in Graphs

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

Updated: 7:01 PM MDT

Temperature: 68.3 °F Dew Point: 32 °F Humidity: 26% Wind: Calm Pressure: 30.24 in Hourly Precipitation: 0.00 in Graphs

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

Updated: 6:53 PM MDT

Temperature: 66.0 °F Dew Point: 35 °F Humidity: 32% Wind: East at 2.0 mph Pressure: 30.15 in Hourly Precipitation: 0.00 in Graphs

Location: Annex, Ontario, OR

Updated: 7:00 PM MDT

Temperature: 66.0 °F Dew Point: 32 °F Humidity: 28% Wind: SE at 1.0 mph Pressure: 30.17 in Hourly Precipitation: 0.00 in Graphs

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

Updated: 6:28 PM MDT

Temperature: 65 °F Dew Point: 34 °F Humidity: 32% Wind: Calm Pressure: 30.10 in Hourly Precipitation: 0.00 in Graphs

Location: Owyhee Junction, Nyssa, OR

Updated: 6:49 PM MDT

Temperature: 66.2 °F Dew Point: 31 °F Humidity: 27% Wind: East at 4.0 mph Pressure: 30.13 in Hourly Precipitation: - Graphs

Location: Mann Creek, Weiser, ID

Updated: 6:55 PM MDT

Temperature: 67.1 °F Dew Point: 38 °F Humidity: 35% Wind: West at 2.2 mph Pressure: 30.09 in Hourly Precipitation: - Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Boise Idaho 
228 PM MDT sun Mar 29 2015 


Short term...tonight through Tuesday...a dry southwest flow aloft 
will bring warmer air into the region through Monday. Record/near 
record highs are still on track for Monday. See the latest public 
information statement...boipnsboi...for a list of cities with the 
latest forecast highs and records. It will be much cooler on 
Tuesday as a cold front moves through the region. Maximum temperatures will 
be 15-25 degrees lower in southeast Oregon and 10-15 degrees lower in SW 
Idaho. Winds will increase as colder air rushes in behind the 
front...becoming breezy to locally windy across all of southeast Oregon 
and SW Idaho during the afternoon. Showers are likely across the 
northern mountains by the afternoon...with a slight chance or chance of 
showers elsewhere...except for the western Magic Valley where it 
will remain dry. 


Long term...Tuesday night through Sunday...still expecting an 
active middle-long term as a series of troughs move through the area. 
Each of these troughs are expected to bring a cold front...gusty 
winds...and reinforce near or below normal temperatures. First 
trough will be exiting the region on Tuesday night...then keep 
lingering moisture in the Idaho central mountains for Wednesday. 
Next trough is expected sometime Thursday with a better chance of 
precipitation...and possibly some isolated thunder in the afternoon. Both 
of these systems are depicted in models quite well...but some 
details and exact timing are wavering from run to run. For Friday 
and beyond...the area will transition into a more zonal/SW flow as 
both models are showing a closed low digging south along the British Columbia 
and pacnw coasts. The GFS is a bit more east and wet with this 
system so probability of precipitation have been increased slightly as confidence 
continues to grow for a larger system near days 6/7. 


&& 


Aviation...VFR with few-scattered high clouds. Surface winds...less 
than 10 kts. Winds aloft near 10k feet mean sea level... west 10-15 kts. 


&& 


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


&& 


$$ 


Weather.Gov/Boise 


Short term...bw 
long term....ep/wh 
aviation.....Ep 






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