Live Weather & Forecast
Weather in Ontario
New York, United States · Real-time conditions & 3-day outlook
4°C
Feels like 2°C
38°F / Feels 35°F
Overcast
Ontario, New York
🌙 Nighttime
Updated: 2026-04-16 05:45
Humidity
92%
Wind
5 km/h SE
Wind Gust
10 km/h
Pressure
1009 mb
Visibility
0 km
UV Index
0
(Low)
Precipitation
0 mm
Cloud Cover
90%
Dew Point
1.8°C
Wind Degree
134°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
151.8 μg/m³
NO₂
1.5 μg/m³
O₃
101 μg/m³
SO₂
1.3 μg/m³
PM 2.5
4.8 μg/m³
PM 10
9.3 μg/m³
Today's Hourly Forecast
24-hour breakdown for Ontario, New York
12 AM
7°
Cloudy
1 AM
6°
Mist
2 AM
5°
Clear
3 AM
4°
Clear
4 AM
4°
Clear
5 AM
4°
Overcast
6 AM
4°
Mist
7 AM
4°
Fog
8 AM
5°
Fog
9 AM
5°
Fog
10 AM
6°
Fog
11 AM
8°
Mist
12 PM
10°
Overcast
1 PM
11°
Partly Cloudy
2 PM
13°
Partly Cloudy
3 PM
14°
Sunny
4 PM
15°
Sunny
5 PM
15°
Sunny
6 PM
12°
Sunny
7 PM
9°
Overcast
8 PM
7°
Overcast
9 PM
6°
Overcast
10 PM
4°
Overcast
11 PM
2°
Fog
3-Day Forecast
Daily overview for Ontario, New York
Today
Cloudy
16°
/
3°
🌧️ 0% chance of rain
💧 Avg. humidity: 87%
💨 Max wind: 16.6 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 0.8
🌅 Sunrise: 06:53 AM
🌇 Sunset: 08:43 PM
🌙 Waning Crescent
🌑 Moon: 3% lit
Fri, Apr 17
Heavy rain
5°
/
-1°
🌧️ 81% chance of rain
❄️ 3% chance of snow
💧 Avg. humidity: 96%
💨 Max wind: 22 km/h
🌧️ Total precip: 28.15 mm
☀️ UV Index: 0.5
🌅 Sunrise: 06:51 AM
🌇 Sunset: 08:44 PM
🌙 New Moon
🌑 Moon: 0% lit
Sat, Apr 18
Moderate or heavy snow showers
-4°
/
-8°
🌧️ 65% chance of rain
❄️ 24% chance of snow
💧 Avg. humidity: 69%
💨 Max wind: 22 km/h
🌧️ Total precip: 29.95 mm
☀️ UV Index: 0.8
🌅 Sunrise: 06:49 AM
🌇 Sunset: 08:46 PM
🌙 Waxing Crescent
🌑 Moon: 1% lit
Best Time to Visit Ontario
Plan your trip to Ontario, United States around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Ontario?
Current conditions in Ontario: Overcast, temperature 4°C, humidity 92%.
What is the best time to visit Ontario?
The best time to visit Ontario is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Ontario?
Ontario is located at approximately 50° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Ontario?
The wettest period in Ontario is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Ontario?
For visits to Ontario during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Ontario in?
Ontario is located in United States, in the state of New York.
What are the public holidays in Ontario in 2026?
View the 2026 public holidays for Ontario on our Holidays page.
What are the GPS coordinates used for the weather forecast in Ontario?
The weather forecast for Ontario uses coordinates 50.0007, -86.001.