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WeatherLive › New York › Ontario

Ontario, NY Weather (14520)

ZIP codes: 14520 · 14519
Today Hourly 10-Day Weekend Monthly Radar Air Quality Climate
Current WeatherOntario · 3:40 AM EDT
22° | 16°
19°C
Feels like 16°
Mostly cloudy
WindSW 11 mph · Gusts 21 mph
Precip83% · 0.35 in
Humidity61% · Dew point 11°
UV index2 Low
Air Quality23 Good
Pressure30.09 inHg
Visibility6 mi
Sunrise / Sunset6:31 AM · 7:48 PM · 13h 17m

Weather map — Ontario

Full radar →
Now
19°
15%
11 mph
04:00
19°
15%
11 mph
05:00
19°
15%
11 mph
06:00
18°
15%
10 mph
07:00
18°
17%
8 mph
08:00
19°
18%
9 mph
09:00
20°
18%
8 mph
10:00
19°
20%
8 mph
11:00
20°
20%
6 mph
12:00
20°
23%
6 mph
13:00
22°
15%
8 mph
14:00
22°
17%
9 mph
15:00
22°
27%
9 mph
16:00
20°
0.02 in
9 mph
17:00
18°
0.09 in
13 mph
18:00
17°
0.05 in
15 mph
19:00
17°
0.03 in
8 mph
20:00
17°
0.08 in
8 mph
21:00
17°
0.04 in
6 mph
22:00
16°
62%
5 mph
23:00
16°
55%
6 mph
00:00
16°
32%
5 mph
01:00
16°
36%
4 mph
02:00
16°
31%
4 mph

Today · Sun 8/30

High 22°
83% / 0.35 in

Mostly cloudy. Winds W at 15 mph.

Overnight · Sun 8/30

Low 18°
— / –

Mostly cloudy.

Tomorrow · Mon 8/31

20° | 16°
71% / 0.05 in

Mostly cloudy. Winds SE at 6 mph.

7-day trend

Ontario · temperature + precipitation

10-day forecast

Updated 3:40 AM

Details & indices

Wind
11 mph SW
Gusts 21 mph
Humidity
61%
Dew point 11°
Pressure
30.09 inHg
Rising
UV index
2 — Low
High today
Air Quality
Good
AQI 23 · US EPA
Allergy
Moderate
Ragweed
Visibility
6 mi
Clear view
Allergy — Ontario

🌿 Conditions right now

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

Sun & moon

Sunrise6:31 AM
Sunset7:48 PM
Length of day13h 17m
Moonrise8:41 PM
Moonset9:09 AM
Moon phase🌖 Waning Gibbous · 95%
Next full moonSep 26 Harvest Moon
Latitude43.2209°N
Longitude-77.2830°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
Poor
Fire up the grill
Running
Poor
Lace up outside
Patio
Fair
Dinner outdoors
Nearby places in {{REGION}}
New York
Mostly cloudy
18°
Brooklyn
Sunny
22°
Queens
Sunny
18°
Manhattan
Partly cloudy
17°
The Bronx
Mostly cloudy
17°
Staten Island
Partly cloudy
17°
Data sources · Sunday, August 30
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: 43.2209°N, -77.2830°.
NBM + global weather models
Updated: 3:40 AM
Weather in Ontario
Over the next 10 days Ontario tops out around 32° (Wednesday) and dips to 13° on the coolest night (Monday). Models drop roughly 1.8 in of precipitation across the stretch — watch Sunday (86%). Expect a blustery spell — gusts near 32 mph on Friday. No active NWS alerts at the moment — quiet on the hazards front. Right now Ontario is running about 52° warmer than Oshawa. Longer view: classic Northeast mix — nor'easters, humid spells and a glorious fall.
Ontario, NY · Elev 440 ft · 43.22°N, 77.28°W · New York · 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: 3:40 AM