Current Conditions

Sarnia, Ontario

68°F20°C

Showers

Wind

SW 12 mph20 km/h

Humidity

81%

Cloud Cover

21%

As of Tuesday, October 13, 2026 at 8:32 AM EDT

Today's Outlook

Day

Mostly clear and warm, with a high of 79°F26°C and morning low of 66°F19°C. Breezy from the SW at 13 to 14 mph21 to 23 km/h. 30% chance of drizzle in the morning.

Night

Partly cloudy, with a low around 66°F19°C. Breezy from the W at 10 to 12 mph17 to 19 km/h. 91% chance of showers overnight.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Showers	High 79°F26°C	Low 66°F19°C	Precip 0.12 in3 mm91%	Cloud 27%	Wind WSW 12 mph19 km/h	Tuesday: Mostly clear and warm, with a high of 79°F26°C and morning low of 66°F19°C. Breezy from the SW at 13 to 14 mph21 to 23 km/h. 30% chance of drizzle in the morning. Tuesday Night: Partly cloudy, with a low around 66°F19°C. Breezy from the W at 10 to 12 mph17 to 19 km/h. 91% chance of showers overnight.
Light Rain	High 65°F18°C	Low 56°F13°C	Precip 0.07 in1.9 mm62%	Cloud 84%	Wind N 9 mph15 km/h	Wednesday: Overcast and mild, with a high of 59°F15°C. Breezy from the NNW at 9 to 11 mph15 to 18 km/h. 58% chance of light rain in the morning. Wednesday Night: Mostly cloudy, with a low around 56°F13°C. Breezy from the N at 9 to 11 mph14 to 17 km/h. 62% chance of light rain before dawn.
Light Rain	High 57°F14°C	Low 53°F11°C	Precip 0.17 in4.2 mm84%	Cloud 97%	Wind E 10 mph15 km/h	Thursday: Overcast and mild, with a high of 57°F14°C and morning low of 53°F11°C. Breezy from the ESE at 9 to 10 mph14 to 15 km/h. 23% chance of drizzle in the afternoon. Dry air. Thursday Night: Overcast, with a low around 54°F12°C. Breezy from the E at 10 to 11 mph16 to 17 km/h. 84% chance of light rain in the evening.
Light Rain	High 58°F15°C	Low 46°F8°CFeels 38°F4°C	Precip 0.43 in11 mm88%	Cloud 86%	Wind WNW 15 mph25 km/h	Friday: Overcast and mild, with a high of 58°F15°C and morning low of 52°F11°C. Windy from the W at 16 to 18 mph25 to 29 km/h. 88% chance of light rain in the morning. Friday Night: Overcast, with a low around 46°F8°C. Windy from the NW at 15 to 19 mph24 to 31 km/h. 86% chance of light rain overnight.
Showers	High 48°F9°CFeels 44°F7°C	Low 40°F5°CFeels 32°F0°C	Precip 0.06 in1.5 mm77%	Cloud 36%	Wind NW 13 mph21 km/h	Saturday: Partly cloudy and cool, with a high of 48°F9°C and morning low of 40°F5°C. Breezy from the NW at 12 to 15 mph20 to 24 km/h. 16% chance of drizzle in the morning. Dry air. Saturday Night: Partly cloudy, with a low around 41°F5°C. Windy from the NW at 13 to 18 mph21 to 30 km/h. 77% chance of showers overnight.
Clear	High 57°F14°C	Low 41°F5°CFeels 34°F1°C	Precip 0 in0.1 mm2%	Cloud 5%	Wind SSW 12 mph19 km/h	Sunday: Mostly clear and mild, with a high of 57°F14°C and morning low of 41°F5°C. Breezy from the SSW at 13 to 14 mph20 to 22 km/h. Dry air. Sunday Night: Mostly clear, with a low around 41°F5°C. Breezy from the SSW at 11 to 13 mph18 to 20 km/h.
Partly Cloudy	High 60°F16°C	Low 46°F8°CFeels 41°F5°C	Precip 0 in0 mm—	Cloud 42%	Wind SSW 10 mph16 km/h	Monday: Partly cloudy and mild, with a high of 60°F16°C and morning low of 46°F8°C. Breezy from the SSW at 10 to 11 mph17 to 17 km/h. Dry air. Monday Night: Partly cloudy, with a low around 47°F8°C. Breezy from the SSW at 10 to 12 mph16 to 19 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	TuesdayOct 13	79°F26°C	66°F19°C	0.12 in3 mm· 91%	27%	Showers	WSW 12 mph19 km/h
DayMostly clear and warm, with a high of 79°F26°C and morning low of 66°F19°C. Breezy from the SW at 13 to 14 mph21 to 23 km/h. 30% chance of drizzle in the morning. NightPartly cloudy, with a low around 66°F19°C. Breezy from the W at 10 to 12 mph17 to 19 km/h. 91% chance of showers overnight.
	WednesdayOct 14	65°F18°C	56°F13°C	0.07 in1.9 mm· 62%	84%	Light Rain	N 9 mph15 km/h
DayOvercast and mild, with a high of 59°F15°C. Breezy from the NNW at 9 to 11 mph15 to 18 km/h. 58% chance of light rain in the morning. NightMostly cloudy, with a low around 56°F13°C. Breezy from the N at 9 to 11 mph14 to 17 km/h. 62% chance of light rain before dawn.
	ThursdayOct 15	57°F14°C	53°F11°C	0.17 in4.2 mm· 84%	97%	Light Rain	E 10 mph15 km/h
DayOvercast and mild, with a high of 57°F14°C and morning low of 53°F11°C. Breezy from the ESE at 9 to 10 mph14 to 15 km/h. 23% chance of drizzle in the afternoon. Dry air. NightOvercast, with a low around 54°F12°C. Breezy from the E at 10 to 11 mph16 to 17 km/h. 84% chance of light rain in the evening.
	FridayOct 16	58°F15°C	46°F8°C Feels 38°F4°C	0.43 in11 mm· 88%	86%	Light Rain	WNW 15 mph25 km/h
DayOvercast and mild, with a high of 58°F15°C and morning low of 52°F11°C. Windy from the W at 16 to 18 mph25 to 29 km/h. 88% chance of light rain in the morning. NightOvercast, with a low around 46°F8°C. Windy from the NW at 15 to 19 mph24 to 31 km/h. 86% chance of light rain overnight.
	SaturdayOct 17	48°F9°C Feels 44°F7°C	40°F5°C Feels 32°F0°C	0.06 in1.5 mm· 77%	36%	Showers	NW 13 mph21 km/h
DayPartly cloudy and cool, with a high of 48°F9°C and morning low of 40°F5°C. Breezy from the NW at 12 to 15 mph20 to 24 km/h. 16% chance of drizzle in the morning. Dry air. NightPartly cloudy, with a low around 41°F5°C. Windy from the NW at 13 to 18 mph21 to 30 km/h. 77% chance of showers overnight.
	SundayOct 18	57°F14°C	41°F5°C Feels 34°F1°C	0 in0.1 mm· 2%	5%	Clear	SSW 12 mph19 km/h
DayMostly clear and mild, with a high of 57°F14°C and morning low of 41°F5°C. Breezy from the SSW at 13 to 14 mph20 to 22 km/h. Dry air. NightMostly clear, with a low around 41°F5°C. Breezy from the SSW at 11 to 13 mph18 to 20 km/h.
	MondayOct 19	60°F16°C	46°F8°C Feels 41°F5°C	0 in0 mm· —	42%	Partly Cloudy	SSW 10 mph16 km/h
DayPartly cloudy and mild, with a high of 60°F16°C and morning low of 46°F8°C. Breezy from the SSW at 10 to 11 mph17 to 17 km/h. Dry air. NightPartly cloudy, with a low around 47°F8°C. Breezy from the SSW at 10 to 12 mph16 to 19 km/h.
	TuesdayOct 20	62°F17°C	47°F8°C Feels 44°F7°C	0 in0 mm· —	30%	Clear	SSW 7 mph11 km/h
DayPartly cloudy and mild, with a high of 62°F17°C and morning low of 47°F8°C. Light wind from the SSW around 6 mph10 km/h. Dry air. NightPartly cloudy, with a low around 48°F9°C. Breezy from the S at 7 to 8 mph11 to 13 km/h.
	WednesdayOct 21	63°F17°C	48°F9°C Feels 45°F7°C	0.01 in0.3 mm· 7%	30%	Clear	SSE 7 mph12 km/h
DayPartly cloudy and mild, with a high of 63°F17°C and morning low of 48°F9°C. Breezy from the SSE at 7 to 8 mph12 to 13 km/h. Dry air. NightPartly cloudy, with a low around 48°F9°C. Breezy from the SSE at 8 to 9 mph12 to 14 km/h.
	ThursdayOct 22	62°F17°C	52°F11°C	0.11 in2.8 mm· 22%	55%	Drizzle	SSW 10 mph15 km/h
DayMostly cloudy and mild, with a high of 62°F17°C and morning low of 52°F11°C. Breezy from the SW at 10 mph16 km/h. 21% chance of drizzle in the morning. Dry air. NightMostly cloudy, with a low around 52°F11°C. Breezy from the SSW at 9 to 10 mph15 to 16 km/h. 22% chance of drizzle overnight.
	FridayOct 23	59°F15°C	51°F11°C	0.09 in2.4 mm· 20%	62%	Drizzle	SSW 9 mph14 km/h
DayMostly cloudy and mild, with a high of 59°F15°C and morning low of 51°F11°C. Breezy from the SW at 8 to 9 mph13 to 14 km/h. 14% chance of drizzle in the morning. Dry air. NightMostly cloudy, with a low around 52°F11°C. Breezy from the SSW at 9 to 10 mph15 to 16 km/h. 20% chance of drizzle overnight.
	SaturdayOct 24	58°F14°C	51°F10°C	0.16 in4 mm· 30%	73%	Light Rain	SSW 11 mph17 km/h
DayMostly cloudy and mild, with a high of 58°F14°C and morning low of 51°F10°C. Breezy from the SSW at 11 mph17 km/h. 26% chance of light rain in the morning. Dry air. NightMostly cloudy, with a low around 51°F11°C. Breezy from the SSW at 10 to 11 mph17 to 17 km/h. 30% chance of showers overnight.
	SundayOct 25	55°F13°C	49°F10°C Feels 45°F7°C	0.12 in3 mm· 27%	70%	Light Rain	WSW 10 mph17 km/h
DayMostly cloudy and mild, with a high of 55°F13°C and morning low of 49°F10°C. Breezy from the WSW at 11 mph17 km/h. 24% chance of drizzle in the morning. Dry air. NightMostly cloudy, with a low around 49°F10°C. Breezy from the WSW at 10 to 11 mph16 to 17 km/h. 27% chance of light rain overnight.
	MondayOct 26	52°F11°C	45°F7°C Feels 40°F5°C	0.09 in2.3 mm· 19%	63%	Drizzle	W 10 mph16 km/h
DayMostly cloudy and mild, with a high of 52°F11°C and morning low of 45°F7°C. Breezy from the W at 10 to 11 mph16 to 17 km/h. 19% chance of drizzle in the morning. Dry air. NightMostly cloudy, with a low around 46°F8°C. Breezy from the W at 10 mph15 km/h. 18% chance of drizzle overnight.
	TuesdayOct 27	51°F11°C	44°F7°C Feels 39°F4°C	0.09 in2.4 mm· 20%	62%	Drizzle	W 10 mph16 km/h
DayMostly cloudy and mild, with a high of 51°F11°C and morning low of 44°F7°C. Breezy from the W at 10 mph16 km/h. 19% chance of drizzle in the morning. Dry air. NightMostly cloudy, with a low around 44°F7°C. Breezy from the W at 10 mph15 km/h. 20% chance of drizzle overnight.

Nearby Cities

Strathroy40 mi64 km Chatham41 mi65 km Tecumseh52 mi83 km Windsor56 mi91 km London59 mi95 km LaSalle61 mi98 km

About This Forecast

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Coordinates: 42.9787°N, 82.4041°W·Elevation: 185m·Timezone: America/Toronto·Population: 72,125