Hourly Weather Forecast - Lansdowne House, Ontario, CA

8 AM
6°F
0%
6mph
WNW
Mostly Cloudy
Humidity
85%
Feels like
-5°F
Dew Point
3°F
8:53 AM
9 AM
6°F
0%
6mph
W
Mostly Cloudy
Humidity
85%
Feels like
-5°F
Dew Point
2°F
10 AM
6°F
0%
6mph
W
Mostly Cloudy
Humidity
85%
Feels like
-5°F
Dew Point
2°F
11 AM
6°F
0%
6mph
W
Mostly Cloudy
Humidity
84%
Feels like
-4°F
Dew Point
2°F
12 PM
8°F
0%
6mph
W
Cloudy
Humidity
83%
Feels like
-2°F
Dew Point
3°F
1 PM
9°F
0%
5mph
WSW
Cloudy
Humidity
82%
Feels like
-1°F
Dew Point
4°F
2 PM
10°F
0%
5mph
WSW
Cloudy
Humidity
81%
Feels like
0°F
Dew Point
5°F
3 PM
10°F
0%
6mph
SW
Cloudy
Humidity
81%
Feels like
0°F
Dew Point
5°F
4 PM
9°F
0%
6mph
SW
Cloudy
Humidity
82%
Feels like
-1°F
Dew Point
5°F
4:38 PM
5 PM
9°F
0%
6mph
SSW
Cloudy
Humidity
83%
Feels like
-2°F
Dew Point
5°F
6 PM
8°F
10%
6mph
SSW
Cloudy
Humidity
84%
Feels like
-3°F
Dew Point
4°F
7 PM
8°F
10%
7mph
SSW
Cloudy
Humidity
85%
Feels like
-4°F
Dew Point
4°F
8 PM
8°F
20%
7mph
SSW
Cloudy
Humidity
84%
Feels like
-4°F
Dew Point
4°F
9 PM
8°F
30%
8mph
SSW
30% Chance of Snow
Humidity
84%
Feels like
-4°F
Dew Point
4°F
10 PM
8°F
40%
8mph
SSW
40% Chance of Heavy Snow
Humidity
84%
Feels like
-4°F
Dew Point
4°F
11 PM
8°F
30%
8mph
SSW
30 % Chance of Heavy Snow
Humidity
84%
Feels like
-4°F
Dew Point
4°F

Wind chill temperatures Monday A.M.

Cold Weather Chills the Nation Down to the Gulf

Extreme cold paired with their wind chill values will shiver much of the nation.

Snowfall forecast through Monday evening.

Mid-Atlantic, Great Lakes Snow Piles Up

Sunday Weather Outlook

Today's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide