Hourly Weather Forecast - Markham, Ontario, CA

12 AM
11°F
10%
5mph
W
Clear
Humidity
87%
Feels like
2°F
Dew Point
7°F
1 AM
10°F
10%
4mph
W
Clear
Humidity
86%
Feels like
3°F
Dew Point
7°F
2 AM
10°F
10%
4mph
WSW
Clear
Humidity
83%
Feels like
4°F
Dew Point
6°F
3 AM
11°F
20%
3mph
SW
Clear
Humidity
82%
Feels like
5°F
Dew Point
7°F
4 AM
13°F
20%
4mph
SSW
Clear
Humidity
81%
Feels like
6°F
Dew Point
8°F
5 AM
14°F
20%
4mph
S
Clear
Humidity
79%
Feels like
7°F
Dew Point
9°F
6 AM
15°F
30%
5mph
S
30% Chance Snow Showers
Humidity
80%
Feels like
7°F
Dew Point
10°F
7 AM
15°F
30%
5mph
SSE
30% Chance Snow Showers
Humidity
81%
Feels like
7°F
Dew Point
11°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

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