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WeatherLive › Ontario › Sarnia

Sarnia, ON Weather

Today Hourly 10-Day Weekend Monthly Radar Air Quality Climate
Current WeatherSarnia · 4:55 AM EST
41° | 36°
38°F
Feels like 32°
Heavy snow
WindN 7 mph · Gusts 15 mph
Precip85% · 0.26 in
Humidity87% · Dew point 35°
UV index1 Low
Air Quality26 Good
Pressure29.85 inHg
Visibility4 mi
Sunrise / Sunset7:19 AM · 5:08 PM · 9h 49m

Weather map — Sarnia

Full radar →
Now
38°
56%
7 mph
05:00
38°
52%
6 mph
06:00
37°
56%
5 mph
07:00
37°
57%
5 mph
08:00
37°
58%
5 mph
09:00
37°
55%
5 mph
10:00
38°
51%
4 mph
11:00
38°
51%
5 mph
12:00
39°
50%
6 mph
13:00
39°
39%
6 mph
14:00
40°
33%
8 mph
15:00
40°
31%
10 mph
16:00
39°
33%
11 mph
17:00
38°
37%
12 mph
18:00
38°
39%
13 mph
19:00
37°
37%
13 mph
20:00
37°
35%
13 mph
21:00
36°
31%
13 mph
22:00
36°
28%
13 mph
23:00
36°
30%
13 mph
00:00
36°
31%
13 mph
01:00
36°
34%
13 mph
02:00
36°
37%
13 mph
03:00
37°
34%
14 mph

Today · Fri 11/13

High 41°
85% / 0.26 in

Heavy snow. Winds NW at 13 mph.

Overnight · Fri 11/13

Low 37°
— / –

Heavy snow.

Tomorrow · Sat 11/14

42° | 36°
67% / 0.05 in

Showers. Winds NW at 17 mph.

7-day trend

Sarnia · temperature + precipitation

10-day forecast

Updated 4:55 AM

Details & indices

Wind
7 mph N
Gusts 15 mph
Humidity
87%
Dew point 35°
Pressure
29.85 inHg
Falling
UV index
1 — Low
High today
Air Quality
Good
AQI 26 · US EPA
Allergy
Low
Ragweed
Visibility
4 mi
Reduced
Allergy — Sarnia

🌿 Conditions right now

View all →
Birch
None
Grass
None
Oak
None
Alder
None
Hazel
None
Mugwort
None
Ragweed
Low

Sun & moon

Sunrise7:19 AM
Sunset5:08 PM
Length of day9h 49m
Moonrise11:35 AM
Moonset8:11 PM
Moon phase🌒 Waxing Crescent · 15%
Next full moonNov 24 Beaver Moon
Latitude42.9787°N
Longitude-82.4041°E

Water temps nearby

View all →
No beaches within 50 miles
🌦️Dry now — rain moving in around 5:30 AM (34 min)
Now+30+60+90 min
Minute-by-minute precip · HRRR nowcast

Daily planner

computed from today's forecast
Laundry day
Poor
Line-drying weather
Grilling
Poor
Fire up the grill
Running
Poor
Lace up outside
Patio
Poor
Dinner outdoors
Nearby places in Ontario
Toronto
Mostly cloudy
34°
Ottawa
Mostly cloudy
33°
Mississauga
Mostly cloudy
34°
Brampton
Mostly cloudy
32°
Hamilton
Mostly cloudy
38°
London
Mostly cloudy
36°
NBM + global weather models
Updated: 4:55 AM
Sarnia, ON · Elev 607 ft · 42.98°N, 82.40°W · Ontario · Forecast computed for these exact coordinates
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 4:55 AM