Ontario, Oregon Weather Conditions

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Current Conditions

  • 89°
  • Clear
  • Wind: SE 8 mph
  • Humidity: 29%
  • Visibility: 10.0 miles
  • Dew Point: 53°
  • Pressure: 30.03 in. -
  • Heat Index: 87

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Next 12 Hours

3  pm
6  pm
9  pm
12  am
3  am
Thunderstorm
T-storms
Thunderstorm
T-storms
Thunderstorm
T-storms
Thunderstorm
T-storms
Thunderstorm
T-storms
90°
88°
82°
75°
75°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Tuesday
  • Thunderstorm
  • High: 93 °
  • Low: 68 °
  • Thunderstorm
  • Wednesday
  • Clear
  • High: 95 °
  • Low: 64 °
  • Clear
  • Thursday
  • Clear
  • High: 82 °
  • Low: 57 °
  • Clear
  • Friday
  • Clear
  • High: 90 °
  • Low: 59 °
  • Clear
  • Saturday
  • Clear
  • High: 95 °
  • Low: 66 °
  • Clear

Forecast for Ontario, Oregon

Updated: 3:00 PM MDT on July 22, 2014

  • Tuesday

    Partly cloudy with thunderstorms and rain showers in the afternoon. High of 93F. Winds from the SSE at 5 to 10 mph. Chance of rain 20%.

  • Tuesday Night

    Overcast with thunderstorms and rain showers. Low of 68F. Winds from the East at 5 to 10 mph shifting to the NNW after midnight. Chance of rain 50%.

  • Wednesday

    Clear. High of 95F. Winds from the SW at 5 to 15 mph.

  • Wednesday Night

    Clear. Low of 64F. Winds from the WNW at 10 to 15 mph.

  • Thursday

    Clear. High of 82F. Winds from the NW at 5 to 15 mph.

  • Thursday Night

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

  • Friday

    Clear. High of 90F. Winds less than 5 mph.

  • Friday Night

    Clear. Low of 59F. Winds from the NNE at 5 to 10 mph.

  • Saturday

    Clear. High of 95F. Winds less than 5 mph.

  • Saturday Night

    Clear. Low of 66F. Winds from the East at 5 to 10 mph shifting to the North after midnight.

  • Sunday

    Partly cloudy. High of 99F. Winds less than 5 mph.

  • Sunday Night

    Partly cloudy. Low of 72F. Winds less than 5 mph.

  • Monday

    Partly cloudy. High of 102F. Winds less than 5 mph.

  • Monday Night

    Partly cloudy. Low of 68F. Winds from the SSW at 5 to 15 mph shifting to the NNW after midnight.

  • Tuesday

    Clear. High of 104F. Winds less than 5 mph.

  • Tuesday Night

    Clear. Low of 73F. Winds from the North at 5 to 10 mph.

  • Wednesday

    Clear. High of 95F. Winds less than 5 mph.

  • Wednesday Night

    Clear. Low of 72F. Winds from the NNW at 5 to 10 mph.

  • Thursday

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

  • Thursday Night

    Clear. Low of 72F. Winds from the NNW at 5 to 10 mph.

  • Friday

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

  • Friday Night

    Clear. Low of 72F. Winds from the NNW at 5 to 10 mph.

  • Saturday

    Clear. High of 90F. Winds less than 5 mph.

  • Saturday Night

    Clear. Low of 72F. Winds from the NW at 5 to 10 mph.

Severe Weather Alert Descriptions

 Fire Weather Warning  Statement as of 2:17 PM MDT on July 22, 2014


... Red flag warning remains in effect until midnight MDT /11 PM
PDT/ tonight for lightning for northern Boise blm... western
Payette National Forest... Treasure valley blm... Owyhee
Mountains... Burns blm... Vale blm and Baker Valley... which are
fire weather zones 400... 401... 420... 423... 636... 637 and 646...

* thunderstorms... scattered storms from mid-afternoon through
midnight MDT / 11 PM PDT /.

* Outflow winds... gusts up to 50 mph are possible with the
stronger storms.

Precautionary/preparedness actions...

A red flag warning means that critical fire weather conditions
are either occurring now... or will shortly. A combination of
strong winds... low relative humidity... and warm temperatures will
create explosive fire growth potential.




L



Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Payette Foothills, Payette, ID

Updated: 3:22 PM MDT

Temperature: 98.2 °F Dew Point: 35 °F Humidity: 11% Wind: SE at 4.6 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 93 °F Graphs

Location: MesoWest ONTARIO OR US AGRIMET, Fruitland, ID

Updated: 2:00 PM MDT

Temperature: 88 °F Dew Point: 51 °F Humidity: 29% Wind: SSE at 5 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 85 °F Graphs

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

Updated: 2:30 PM MDT

Temperature: 92 °F Dew Point: 48 °F Humidity: 23% Wind: ESE at 5 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 89 °F Graphs

Location: MesoWest WOOD ID US UPR, Payette, ID

Updated: 2:00 PM MDT

Temperature: 91 °F Dew Point: - Humidity: - Wind: ENE at 9 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 87 °F Graphs

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

Updated: 3:22 PM MDT

Temperature: 92.6 °F Dew Point: 50 °F Humidity: 24% Wind: SW at 7.0 mph Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 90 °F Graphs

Location: MesoWest NYSSA OR US UPR, Fruitland, ID

Updated: 2:00 PM MDT

Temperature: 84 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: RAWS ALKALI FLAT OR US, Vale, OR

Updated: 2:09 PM MDT

Temperature: 91 °F Dew Point: 49 °F Humidity: 24% Wind: SSE at 3 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 88 °F Graphs

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

Updated: 2:36 PM MDT

Temperature: 88 °F Dew Point: 50 °F Humidity: 27% Wind: ESE at 7 mph Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: 85 °F Graphs

Location: Parma - Outdoor Range, Parma, ID

Updated: 3:22 PM MDT

Temperature: 89.8 °F Dew Point: 45 °F Humidity: 21% Wind: SSE at 1.1 mph Pressure: 27.49 in Hourly Precipitation: 0.00 in Heat Index: 86 °F Graphs

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

Updated: 2:30 PM MDT

Temperature: 89 °F Dew Point: - Humidity: - Wind: East at 8 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 86 °F Graphs

Location: MesoWest COBB ID US UPR, Weiser, ID

Updated: 2:30 PM MDT

Temperature: 86 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: MesoWest PARMA ID US AGRIMET, Parma, ID

Updated: 2:00 PM MDT

Temperature: 88 °F Dew Point: 52 °F Humidity: 29% Wind: SE at 5 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 86 °F Graphs

Location: MesoWest PARMA ID US UPR, Parma, ID

Updated: 2:15 PM MDT

Temperature: 84 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

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

Updated: 1:45 PM MDT

Temperature: 86 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: RAWS CATFISH ID US, Huntington, OR

Updated: 12:52 PM PDT

Temperature: 83 °F Dew Point: 52 °F Humidity: 34% Wind: ESE at 12 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Boise Idaho 
254 PM MDT Tuesday Jul 22 2014 


Short term...tonight through Thursday...scattered showers and 
thunderstorms will develop over eastern Oregon late this afternoon 
and move into extreme western Idaho early this evening. These 
thunderstorms will move toward the north-northeast at around 40 miles per hour and 
produce gusty surface winds...small hail and brief heavy rain. A 
vorticity maximum seen in satellite water vapor imagery over central 
California with move north-northeast into eastern Oregon late this evening. 
This will provide some dynamic support to keep thunderstorm 
activity going for a while after sunset in eastern Oregon and in 
western Idaho near the Oregon border. Drier air will move into the 
forecast area tomorrow...but there should still be enough 
moisture and instability for a chance of showers and isolated 
thunderstorms in the northern portion of the forecast area near 
Baker City in Oregon and near McCall in Idaho...otherwise dry. A 
dry cold front will move through the area on Thursday and bring 
much cooler air into southeastern Oregon and southwestern Idaho. 
Expect dry breezy weather on Thursday with temperatures 10 degrees 
below normal. 


Long term...Thursday night through Tuesday...westerly flow still 
on track to set up over the region Thursday night for dry 
conditions. High temperatures on Friday will be around 5 degrees 
below normal and then warm a few degrees each day through the 
weekend and into early next week with high temperatures 7 to 10 
degrees above normal. Ridge of high pressure will begin to build 
north over the forecast area Sunday and into early next week. 
Monday afternoon into Tuesday latest models show some moisture 
moving north under the ridge for slight chance of showers and 
thunderstorms. 


&& 


Aviation...scattered showers and thunderstorms developing over the 
region this evening and will linger over the forecast area through 
the night. Local MVFR conditions in heavy showers. Surface winds 
10 knots or less...except gusts to 40 knots near thunderstorms. 
Winds aloft will be southwesterly 15 to 20 knots up through 10k feet 
mean sea level. 


&& 


Boi watches/warnings/advisories... 
Idaho...red flag warning until midnight MDT tonight idz400-401-420-423. 
Or...red flag warning until midnight MDT /11 PM PDT/ tonight 
orz636-637-646. 


&& 


$$ 


Weather.Gov/Boise 


Short term...jb 
long term....ja/ab 
aviation.....Ja 






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