Hourly Weather Forecast - Thornhill, Ontario, CA

12 AM
10°F
10%
6mph
SW
Mostly Cloudy
Humidity
73%
Feels like
0°F
Dew Point
3°F
1 AM
11°F
0%
6mph
SW
Cloudy
Humidity
70%
Feels like
1°F
Dew Point
3°F
2 AM
11°F
0%
5mph
SW
Cloudy
Humidity
71%
Feels like
1°F
Dew Point
3°F
3 AM
11°F
10%
4mph
SW
Cloudy
Humidity
71%
Feels like
3°F
Dew Point
3°F
4 AM
11°F
10%
3mph
SW
Cloudy
Humidity
72%
Feels like
4°F
Dew Point
4°F
5 AM
11°F
10%
2mph
SSW
Cloudy
Humidity
72%
Feels like
11°F
Dew Point
4°F
6 AM
12°F
20%
2mph
SSW
Cloudy
Humidity
74%
Feels like
12°F
Dew Point
5°F
7 AM
13°F
40%
1mph
S
40% Chance of Snow
Humidity
75%
Feels like
13°F
Dew Point
7°F
7:45 AM
8 AM
15°F
80%
2mph
S
80% Chance of Heavy Snow
Humidity
78%
Feels like
15°F
Dew Point
10°F
9 AM
18°F
100%
3mph
S
Heavy Snow
Humidity
81%
Feels like
12°F
Dew Point
13°F
10 AM
20°F
100%
4mph
S
Heavy Snow
Humidity
83%
Feels like
14°F
Dew Point
16°F
11 AM
22°F
100%
5mph
S
Heavy Snow
Humidity
83%
Feels like
15°F
Dew Point
18°F
12 PM
24°F
100%
6mph
S
Heavy Snow
Humidity
84%
Feels like
17°F
Dew Point
20°F
1 PM
26°F
90%
7mph
S
Heavy Snow
Humidity
82%
Feels like
18°F
Dew Point
21°F
2 PM
27°F
80%
7mph
SSW
80% Chance of Heavy Snow
Humidity
83%
Feels like
19°F
Dew Point
23°F
3 PM
28°F
70%
6mph
SSW
70% Chance of Heavy Snow
Humidity
82%
Feels like
22°F
Dew Point
23°F
4 PM
29°F
60%
6mph
SSW
60% Chance of Snow
Humidity
81%
Feels like
23°F
Dew Point
24°F
5 PM
30°F
60%
6mph
SSW
60% Chance of Flurries
Humidity
80%
Feels like
24°F
Dew Point
24°F
5:13 PM
6 PM
30°F
50%
6mph
SW
50% Chance of Flurries
Humidity
82%
Feels like
24°F
Dew Point
25°F
7 PM
30°F
50%
6mph
SW
50% Chance of Flurries
Humidity
83%
Feels like
23°F
Dew Point
25°F
8 PM
29°F
40%
7mph
SW
40% Chance of Flurries
Humidity
83%
Feels like
22°F
Dew Point
25°F
9 PM
28°F
30%
7mph
WSW
30% Chance Snow Showers
Humidity
81%
Feels like
21°F
Dew Point
23°F
10 PM
27°F
30%
8mph
WSW
30% Chance Snow Showers
Humidity
79%
Feels like
19°F
Dew Point
22°F
11 PM
26°F
30%
7mph
WSW
30% Chance Snow Showers
Humidity
77%
Feels like
18°F
Dew Point
20°F

Snow Forecast through Sunday

Series of Weather Systems Cover Great Lakes, East in Snow

Two main areas of low pressure will produce snow in the Upper Midwest, Great Lakes and Eastern U.S.

Monday's Weather Outlook

Today's Weather Outlook

Weekly Drought Map for January 15, 2026

Active Weather Creates Mix of Improvements, Degradations to Drought Depiction

Vehicle driving in wintry conditions

Prepare Your Car for Cold Weather

(Image provided by NOAA)

Polar Vortex: What Is It?

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

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