Now

42°

33%

15 mph

22:00

42°

44%

14 mph

23:00

41°

46%

13 mph

00:00

40°

44%

12 mph

01:00

40°

48%

11 mph

02:00

39°

52%

10 mph

03:00

38°

56%

9 mph

04:00

38°

64%

7 mph

05:00

38°

55%

6 mph

06:00

37°

59%

5 mph

07:00

37°

65%

5 mph

08:00

37°

63%

5 mph

09:00

37°

61%

5 mph

10:00

38°

57%

5 mph

11:00

39°

55%

6 mph

12:00

39°

53%

6 mph

13:00

40°

43%

7 mph

14:00

40°

44%

9 mph

15:00

39°

44%

11 mph

16:00

39°

49%

12 mph

17:00

38°

48%

13 mph

18:00

37°

43%

14 mph

19:00

37°

36%

14 mph

20:00

36°

32%

14 mph

Today · Thu 11/12

High 46°

83% / 0.18 in

Drizzle. Winds NE at 16 mph.

Tonight · Thu 11/12

Low 37°

44% / 0.01 in

Partly cloudy. Winds N at 14 mph.

Tomorrow · Fri 11/13

40° | 36°

87% / 0.31 in

Heavy snow. Winds NW at 14 mph.

10-day forecast

Updated 9:12 PM

Thu · Today · 12 Nov Drizzle

46° 41° 0.18 in

Fri · Tomorrow · 13 Nov Heavy snow

40° 36° 0.31 in

Saturday · 14 Nov Showers

43° 36° 0.04 in

Sunday · 15 Nov Partly cloudy

44° 39° 0.01 in

Monday · 16 Nov Sunny

48° 35° 8%

Tuesday · 17 Nov Sunny

50° 35° 8%

Wednesday · 18 Nov Partly cloudy

52° 37° 11%

Thursday · 19 Nov Partly cloudy

54° 38° 11%

Friday · 20 Nov Partly cloudy

57° 46° 18%

Saturday · 21 Nov Mostly cloudy

52° 43° 20%

Details & indices

Wind

15 mph NE

Gusts 25 mph

Humidity

77%

Dew point 35°

Pressure

29.83 inHg

Falling

UV index

1 — Low

High today

Air Quality

Good

AQI 30 · US EPA

Allergy

Low

Ragweed

Visibility

6 mi

Clear view

Allergy — Sarnia

🌿 Conditions right now

View all →

Birch

None

Grass

None

Oak

None

Alder

None

Hazel

None

Mugwort

None

Ragweed

Low

Sun & moon

Sunrise7:18 AM

Sunset5:09 PM

Length of day9h 51m

Moonrise10:49 AM

Moonset7:12 PM

Moon phase🌒 Waxing Crescent · 13%

Next full moonNov 24 Beaver Moon

Latitude42.9787°N

Longitude-82.4041°E

Water temps nearby

View all →

No beaches within 50 miles

🌤️No rain expected in the next 90 minutes

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

Fair

Lace up outside

Patio

Poor

Dinner outdoors

Nearby places in Ontario

40°

36°

40°

38°

44°

38°

NBM + global weather models

Updated: 9:12 PM

Sarnia, ON · Elev 607 ft · 42.98°N, 82.40°W · Ontario · Forecast computed for these exact coordinates

Sarnia, ON Weather

Weather map — Sarnia

Today · Thu 11/12

Tonight · Thu 11/12

Tomorrow · Fri 11/13

7-day trend

10-day forecast

Details & indices

🌿 Conditions right now

Sun & moon

Water temps nearby

Daily planner