New York, NY 21° Los Angeles, CA 20° Chicago, IL 17° 🌤️ Houston, TX Miami, FL 25° Phoenix, AZ 32° 🌤️ Seattle, WA 🌤️ Denver, CO Toronto, ON 15° Vancouver, BC 16°
WeatherLiveOregonOntario

Ontario, OR Weather (97914)

Current WeatherOntario · 7:18 AM MDT
33° | 19°
20°C
Feels like 17°
Partly cloudy
WindW 5 mph · Gusts 5 mph
Precip57% · 0.05 in
Humidity40% · Dew point 5°
UV index7 High
Air Quality53 Moderate
Pressure29.91 inHg
Visibility6 mi
Sunrise / Sunset7:00 AM · 8:40 PM · 13h 40m

Weather map — Ontario

Full radar →
Now
20°
17%
5 mph
08:00
23°
17%
4 mph
09:00
25°
17%
5 mph
10:00
27°
17%
6 mph
11:00
31°
17%
9 mph
12:00
32°
17%
10 mph
13:00
33°
17%
11 mph
14:00
29°
0%
13 mph
15:00
30°
0%
12 mph
16:00
31°
1%
12 mph
17:00
31°
9%
13 mph
18:00
31°
7%
13 mph
19:00
30°
9%
12 mph
20:00
33°
9%
8 mph
21:00
29°
9%
7 mph
22:00
28°
3%
7 mph
23:00
26°
9%
8 mph
00:00
24°
6%
7 mph
01:00
23°
2%
7 mph
02:00
22°
2%
7 mph
03:00
22°
1%
6 mph
04:00
21°
1%
6 mph
05:00
20°
5%
6 mph
06:00
20°
1%
5 mph

Today · Sun 8/23

High 33°
57% / 0.05 in

Showers. Winds W at 13 mph.

Overnight · Sun 8/23

Low 23°
— / –

Showers.

Tomorrow · Mon 8/24

34° | 18°
5% / –

Mostly cloudy. Winds NW at 7 mph.

7-day trend

Ontario · temperature + precipitation

10-day forecast

Updated 7:18 AM

Details & indices

Wind
5 mph W
Gusts 5 mph
Humidity
40%
Dew point 5°
Pressure
29.91 inHg
Rising
UV index
7 — High
High today
Air Quality
Moderate
AQI 53 · US EPA
Allergy
Very high
Mugwort
Visibility
6 mi
Clear view
Allergy — Ontario

🌿 Conditions right now

View all →
Birch
None
Grass
High
Oak
None
Alder
None
Hazel
None
Mugwort
High
Ragweed
Low

Sun & moon

Sunrise7:00 AM
Sunset8:40 PM
Length of day13h 40m
Moonrise6:36 PM
Moonset2:03 AM
Next full moonAug 27 Sturgeon Moon
Latitude44.0266°N
Longitude-116.9629°E

Water temps nearby

View all →
No beaches within 50 miles
🌤️No rain expected in the next 90 minutes
Now+30+60+90 min
Minute-by-minute precip · HRRR nowcast

Daily planner

computed from today's forecast
Laundry day
Fair
Line-drying weather
Grilling
Fair
Fire up the grill
Running
Poor
Lace up outside
Patio
Fair
Dinner outdoors
Nearby places in {{REGION}}
🌤️
Portland
🌤️
Eugene
🌤️
Salem
Data sources · Sunday, August 23
Where the Ontario forecast comes from
This page blends NOAA/NWS model guidance with global ensembles for the 10-day outlook, air quality and alerts. Data refreshes every hour, current conditions every 15 minutes. Coordinates: 44.0266°N, -116.9629°.
NBM + global weather models
Updated: 7:18 AM
Weather in Ontario
Ontario's outlook: warmest day near 37° (Tuesday), coldest night about 12° (Sunday). About 0.05 in of precipitation is expected in total; the most likely wet day is Sunday (57% chance). Hold onto the patio furniture Monday: gusts could hit 32 mph. No active NWS alerts at the moment — quiet on the hazards front. Right now Ontario is running about 48° warmer than Kennewick. Longer view: marine climate — mild, showery winters and dry, gentle summers.
Ontario, OR · Elev 2,152 ft · 44.03°N, 116.96°W · Oregon · Forecast computed for these exact coordinates
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 7:18 AM