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Ontario Weather Forecast

Temperature, wind, rain and more for Ontario

California, United States Of America

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Sat 13
Dec		01:00

NNW
NNW

 1 / 1 mph 66 / 67°F 52% 1016 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
04:00

NNW
NNW

 1 / 3 mph 61 / 61°F 51% 1016 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
07:00

N
N

 2 / 4 mph 61 / 60°F 49% 1016 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
10:00

S
S

 1 / 1 mph 74 / 75°F 35% 1017 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 9%
Most Significant Cloud Type: high
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

WSW
WSW

 4 / 4 mph 80 / 77°F 27% 1015 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 38%
Most Significant Cloud Type: high
37%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

W
W

 4 / 5 mph 77 / 76°F 33% 1015 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 36%
Most Significant Cloud Type: high
36%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

WSW
WSW

 2 / 4 mph 68 / 68°F 42% 1016 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: high
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

WNW
WNW

 2 / 3 mph 64 / 64°F 45% 1017 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 86%
Most Significant Cloud Type: high
85%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 14
Dec		01:00

NNW
NNW

 1 / 2 mph 63 / 64°F 46% 1017 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 13%
Most Significant Cloud Type: high
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

NW
NW

 1 / 3 mph 62 / 62°F 42% 1017 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: high
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

NNE
NNE

 1 / 3 mph 62 / 61°F 39% 1018 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 32%
Most Significant Cloud Type: high
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

SSW
SSW

 1 / 1 mph 75 / 74°F 28% 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
13:00

WSW
WSW

 3 / 4 mph 80 / 76°F 22% 1016 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 16%
Most Significant Cloud Type: high
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

W
W

 4 / 5 mph 80 / 77°F 27% 1016 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 2%
Most Significant Cloud Type: high
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

NW
NW

 2 / 2 mph 75 / 76°F 33% 1018 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
22:00

N
N

 2 / 4 mph 65 / 65°F 34% 1018 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:

The forecast for Ontario in the coming week is predicting the average daytime maximum temperature will be around 25°C, with a high for the week of 28°C expected on the afternoon of Tuesday 16th. The average minimum temperature will be 16°C, dipping to its lowest on the morning of Saturday 20th at 13°C. The week ahead will remain predominantly dry. 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.
(More Info)

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.
(More Info)

Pressure