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Local Weather

Ontario Weather Forecast

Temperature, wind, rain and more for Ontario

California, United States Of America

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Tue 11
Nov		01:00

NNW
NNW

 1 / 1 mph 69 / 69°F 29% 1019 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 33%
Most Significant Cloud Type: high
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

NNE
NNE

 1 / 3 mph 69 / 69°F 28% 1018 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 12%
Most Significant Cloud Type: high
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

NNE
NNE

 2 / 3 mph 69 / 68°F 26% 1019 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 79%
Most Significant Cloud Type: high
78%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

S
S

 2 / 2 mph 84 / 78°F 18% 1018 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 33%
Most Significant Cloud Type: high
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

WSW
WSW

 5 / 6 mph 87 / 81°F 18% 1016 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 18%
Most Significant Cloud Type: high
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

W
W

 8 / 9 mph 81 / 79°F 30% 1016 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 96%
Most Significant Cloud Type: high
95%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

WSW
WSW

 3 / 4 mph 77 / 78°F 40% 1017 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 33%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

WSW
WSW

 3 / 4 mph 71 / 71°F 46% 1017 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 92%
Most Significant Cloud Type: high
91%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 12
Nov		13:00

WSW
WSW

 6 / 7 mph 80 / 78°F 32% 1015 mb
Low level cloud: 0%
Mid level cloud: 31%
High level cloud: 100%
Most Significant Cloud Type: medium
34%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

WSW
WSW

 6 / 7 mph 79 / 77°F 38% 1015 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 89%
Most Significant Cloud Type: medium
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

WSW
WSW

 5 / 6 mph 74 / 77°F 52% 1017 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SW
SW

 1 / 2 mph 69 / 69°F 56% 1017 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
The 7 day weather forecast summary for Ontario:

For Ontario in the coming week the average daytime maximum temperature will be around 19°C, with a high for the week of 27°C expected on the afternoon of Wednesday 12th. The average minimum temperature will be 15°C, dipping to its lowest on the morning of Wednesday 19th at 12°C. The coming week will have some days seeing a little precipitation and some days with rain. It looks like Saturday 19th will have the most precipitation with an accumulation of around 42.0mm. On the whole winds are likely to be light.

The day label given represents the local day relative to the local time for the location you are looking at.
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Day

This time is corrected for local time zones and where possible for daylight saving times.
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Local Time

The wind direction we use on this page is the direction the wind is coming from, given in a 16 point compass format.
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Dir

This refers to the sustained average wind speed, normally averaged over a period of 10 minutes for up to 3 hrs.
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Speed/
Gust

Temperature from our forecast perspective are fairly well defined, they are what we would expect to measure in a standard meteorological screen (in other words, shaded and well ventilated) at 2 metres above ground level.
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Temp/
Feels Like

The relative humidity is the percent of saturation humidity, generally calculated in relation to saturated vapour density.
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Humidity

The value given is a total predicted for the previous 3 hrs and includes the time of the forecast being looked at.
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Precip Amount

The total amount of cloud as a percentage is derived from looking at cloud cover throughout the atmosphere and estimating how these combine when looked at from the ground.
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Cloud Amount

Here we try to capture the feel of the weather as an image – it will never be perfect but is useful for a quick overview.
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Weather

When we measure for forecast air pressure we are normally doing this relative to a certain height and most commonly relative to Mean Sea Level.
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Pressure