Ontario, Oregon Weather Conditions

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Current Conditions

  • 68°
  • Clear
  • Wind: WNW 5 mph
  • Humidity: 43%
  • Visibility: 10.0 miles
  • Dew Point: 45°
  • Pressure: 30.12 in. +

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Next 12 Hours

1  pm
4  pm
7  pm
10  pm
1  am
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
72°
77°
77°
67°
58°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Thursday
  • Clear
  • High: 80 °
  • Low: 51 °
  • Clear
  • Friday
  • Clear
  • High: 86 °
  • Low: 61 °
  • Clear
  • Saturday
  • Mostly Cloudy
  • High: 90 °
  • Low: 61 °
  • Mostly Cloudy
  • Sunday
  • Partly Cloudy
  • High: 93 °
  • Low: 63 °
  • Partly Cloudy
  • Monday
  • Partly Cloudy
  • High: 82 °
  • Low: 53 °
  • Partly Cloudy

Forecast for Ontario, Oregon

Updated: 9:02 AM MDT on January 28, 2015

  • Thursday

    Abundant sunshine. High near 80F. Winds NW at 5 to 10 mph.

  • Thursday Night

    Clear skies. Low 51F. Winds SSW at 5 to 10 mph.

  • Friday

    Generally sunny. High 86F. Winds SSE at 10 to 15 mph.

  • Friday Night

    Clear skies with a few passing clouds. Low 61F. Winds SE at 5 to 10 mph.

  • Saturday

    Mainly cloudy. High near 90F. Winds S at 5 to 10 mph.

  • Saturday Night

    Cloudy early with partial clearing expected late. Low 61F. Winds NW at 5 to 10 mph.

  • Sunday

    Partly cloudy skies. High 93F. Winds SSW at 5 to 10 mph.

  • Sunday Night

    Partly cloudy skies in the evening, then becoming cloudy overnight. Low 63F. Winds SSE at 5 to 10 mph.

  • Monday

    Partly cloudy. High 82F. Winds WSW at 10 to 20 mph.

  • Monday Night

    Some clouds early will give way to generally clear conditions overnight. Low 53F. Winds WNW at 10 to 15 mph.

  • Tuesday

    Mostly sunny skies. High near 75F. Winds WNW at 10 to 15 mph.

  • Tuesday Night

    Generally fair. Low near 50F. Winds NW at 10 to 20 mph.

  • Wednesday

    Some clouds in the morning will give way to mainly sunny skies for the afternoon. High 76F. Winds NW at 10 to 15 mph.

  • Wednesday Night

    A few clouds from time to time. Low 52F. Winds NW at 5 to 10 mph.

  • Thursday

    Mostly sunny skies. High 81F. Winds NNW at 5 to 10 mph.

  • Thursday Night

    Clear skies. Low 54F. Winds N at 5 to 10 mph.

  • Friday

    Sunny skies. High around 85F. Winds NNW at 10 to 15 mph.

  • Friday Night

    Clear. Low 56F. Winds NNW at 5 to 10 mph.

  • Saturday

    Sunny skies. High 86F. Winds NNW at 10 to 15 mph.

  • Saturday Night

    Clear. Low 56F. Winds NNW at 5 to 10 mph.

  • Sunday

    Sunny. High 86F. Winds NNW at 5 to 10 mph.

  • Sunday Night

    A mostly clear sky. Low 57F. Winds NNW at 5 to 10 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Payette Foothills, Payette, ID

Updated: 11:44 AM MDT

Temperature: 90.5 °F Dew Point: 32 °F Humidity: 12% Wind: Calm Pressure: 27.73 in Hourly Precipitation: 0.00 in Heat Index: 86 °F Graphs

Location: MesoWest, Fruitland, ID

Updated: 11:00 AM MDT

Temperature: 68 °F Dew Point: 49 °F Humidity: 50% Wind: ESE at 2 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: ITD, Fruitland, ID

Updated: 11:15 AM MDT

Temperature: 70 °F Dew Point: 49 °F Humidity: 48% Wind: West at 1 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: MesoWest, Payette, ID

Updated: 11:00 AM MDT

Temperature: 69 °F Dew Point: - Humidity: - Wind: SW at 5 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: - Graphs

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

Updated: 11:46 AM MDT

Temperature: 71.2 °F Dew Point: 47 °F Humidity: 42% Wind: WSW at 2.0 mph Pressure: 30.10 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

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

Updated: 11:43 AM MDT

Temperature: 69.8 °F Dew Point: 46 °F Humidity: 43% Wind: ESE at 3.0 mph Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: RAWS, Vale, OR

Updated: 11:09 AM MDT

Temperature: 73 °F Dew Point: 43 °F Humidity: 34% Wind: NNE at 12 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: APRSWXNET, New Plymouth, ID

Updated: 11:20 AM MDT

Temperature: 67 °F Dew Point: 48 °F Humidity: 51% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: MesoWest, Weiser, ID

Updated: 11:00 AM MDT

Temperature: 71 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: MesoWest, Parma, ID

Updated: 11:00 AM MDT

Temperature: 69 °F Dew Point: 50 °F Humidity: 52% Wind: NE at 3 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: MesoWest, Huntington, OR

Updated: 9:45 AM PDT

Temperature: 71 °F Dew Point: 51 °F Humidity: 49% Wind: North at 8 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Owyhee Junction, Nyssa, OR

Updated: 11:38 AM MDT

Temperature: 68.9 °F Dew Point: 50 °F Humidity: 51% Wind: ENE at 3.0 mph Pressure: 29.98 in Hourly Precipitation: - Heat Index: - Graphs

Location: HADS, Vale, OR

Updated: 10:45 AM MDT

Temperature: 71 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Mann Creek, Weiser, ID

Updated: 10:32 AM MDT

Temperature: 71.8 °F Dew Point: 50 °F Humidity: 47% Wind: SE at 2.2 mph Pressure: 30.01 in Hourly Precipitation: - Heat Index: 77 °F Graphs

Location: RAWS, Huntington, OR

Updated: 10:03 AM PDT

Temperature: 67 °F Dew Point: 44 °F Humidity: 44% Wind: NNE at 3 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: - Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Boise Idaho 
1007 am MDT Thursday may 28 2015 


Discussion...area will remain under cyclonic flow around upper 
low positioned along the Idaho/Wyoming this morning. Morning Boise 
sounding showing some drying in middle-levels /h5-h7/ compared to 
yesterday. Winds are northwest throughout layer and will pick up at the 
surface this afternoon in open valleys. Shower and thunderstorm 
threat for this afternoon will focus over higher terrain east of a 
line from McCall-Idaho City-Jerome...and the mountains of Baker 
County. Current forecast has this well covered so no updates for 
this morning. 


&& 


Aviation...VFR. Few to scattered middle level clouds...becoming clear 
overnight. Isolated showers and thunderstorms developing east of a 
McCall-Idaho City-Jerome line this afternoon and evening. Surface 
winds...variable 12 kts or less. Winds aloft at 10k feet mean sea level...northwest 5- 
10 kts...becoming light and variable by 29/12z...before turning SW 
at 5-15 kts by 30/00z. 


&& 


Previous discussion... 
short term...today through Friday...an upper level low centered 
over eastern Idaho will continue to move east as an upper ridge 
builds in from the west. Moisture and instability around the 
western edge of the low will bring more showers and thunderstorms 
this afternoon over the higher terrain of SW Idaho and Baker 
County...with dry conditions expected for the remainder of the 
area. The convection will diminish this evening with mostly clear 
skies expected across all of southeast Oregon and SW Idaho late tonight 
through Friday morning. The upper ridge will move into the region 
on Friday...although residual moisture along with daytime heating 
will promote a slight chance of afternoon showers and 
thunderstorms over the northern high terrain. Temperatures will 
trend warmer...with valley highs in the 80s on Friday. 


Long term...Friday night through Thursday...upper level ridge 
will build into the region for the weekend bringing warmer 
conditions. Temperatures near 90f expected in the lowest valleys 
Saturday and Sunday or 10-15 degrees above normal. A Pacific upper 
level trough will arrive Sunday evening and a vigorous cold front 
will move across the region early Monday morning. Showers and 
thunderstorms will be possible with the frontal passage. Latest 
models are slightly weaker with this system and farther 
north...with less moisture to work with. Regardless temperatures 
will fall to around 5 degrees below normal for Tuesday through 
Thursday with enhanced chances of precipitation as the upper level 
low slowly tracks across the Pacific northwest. 


&& 


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


&& 


$$ 


Weather.Gov/Boise 


Discussion...dg 
aviation.....Ab 
previous short term...bw 
previous long term....ka 






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