Current Conditions

St. Thomas, Ontario

66°F19°C

Partly Cloudy

Wind

SW 13 mph21 km/h

Humidity

85%

Cloud Cover

34%

As of Monday, October 12, 2026 at 11:45 PM EDT

Today's Outlook

Night

Partly cloudy, with a low around 66°F19°C. Breezy from the SW at 12 to 13 mph20 to 21 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Partly Cloudy	High 67°F20°C	Low 66°F19°C	Precip 0 in0 mm—	Cloud 45%	Wind SW 13 mph20 km/h	Monday: Mostly cloudy and mild, with a high of 67°F20°C. Breezy from the SW at 13 mph21 km/h. Monday Night: Partly cloudy, with a low around 66°F19°C. Breezy from the SW at 12 to 13 mph20 to 21 km/h.
Drizzle	High 74°F23°C	Low 65°F19°C	Precip 0.03 in0.8 mm31%	Cloud 32%	Wind WSW 14 mph23 km/h	Tuesday: Mostly clear and warm, with a high of 74°F23°C and morning low of 65°F19°C. Windy from the SW at 15 to 17 mph25 to 28 km/h. 23% chance of drizzle in the morning. Tuesday Night: Partly cloudy, with a low around 66°F19°C. Breezy from the WSW at 13 to 14 mph21 to 22 km/h. 31% chance of drizzle before dawn.
Light Rain	High 65°F18°C	Low 55°F13°C	Precip 0.04 in1 mm45%	Cloud 80%	Wind NNW 10 mph16 km/h	Wednesday: Overcast and mild, with a high of 60°F16°C. Breezy from the NW at 9 to 12 mph15 to 19 km/h. 45% chance of light rain in the morning. Wednesday Night: Mostly cloudy, with a low around 55°F13°C. Breezy from the NNW at 10 to 12 mph17 to 19 km/h. 14% chance of drizzle before dawn.
Light Rain	High 55°F13°C	Low 50°F10°C	Precip 0.06 in1.6 mm52%	Cloud 91%	Wind ENE 10 mph17 km/h	Thursday: Overcast and mild, with a high of 55°F13°C and morning low of 50°F10°C. Breezy from the E at 11 mph17 km/h. Dry air. Thursday Night: Overcast, with a low around 51°F11°C. Breezy from the ENE at 10 to 11 mph17 to 17 km/h. 52% chance of light rain in the evening.
Light Rain	High 56°F13°C	Low 44°F7°CFeels 37°F3°C	Precip 0.43 in10.8 mm92%	Cloud 80%	Wind NW 15 mph24 km/h	Friday: Overcast and mild, with a high of 56°F13°C. Windy from the WNW at 15 to 18 mph25 to 28 km/h. 92% chance of light rain in the morning. Friday Night: Mostly cloudy, with a low around 44°F7°C. Windy from the NNW at 14 to 18 mph23 to 30 km/h. 92% chance of light rain overnight.
Drizzle	High 49°F10°CFeels 45°F7°C	Low 38°F3°CFeels 31°F-1°C	Precip 0.01 in0.3 mm14%	Cloud 35%	Wind WNW 12 mph20 km/h	Saturday: Partly cloudy and cool, with a high of 49°F10°C and morning low of 38°F3°C. Breezy from the WNW at 12 to 13 mph19 to 20 km/h. Dry air. Saturday Night: Mostly clear, with a low around 39°F4°C. Windy from the WNW at 13 to 16 mph21 to 26 km/h. 14% chance of drizzle overnight.
Clear	High 56°F13°C	Low 42°F6°CFeels 36°F2°C	Precip 0.01 in0.2 mm2%	Cloud 13%	Wind SW 12 mph19 km/h	Sunday: Mostly clear and mild, with a high of 56°F13°C and morning low of 42°F6°C. Breezy from the SW at 12 to 13 mph19 to 21 km/h. Dry air. Sunday Night: Mostly clear, with a low around 42°F6°C. Breezy from the SW at 11 to 12 mph18 to 19 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	MondayOct 12	67°F20°C	66°F19°C	0 in0 mm· —	45%	Partly Cloudy	SW 13 mph20 km/h
DayMostly cloudy and mild, with a high of 67°F20°C. Breezy from the SW at 13 mph21 km/h. NightPartly cloudy, with a low around 66°F19°C. Breezy from the SW at 12 to 13 mph20 to 21 km/h.
	TuesdayOct 13	74°F23°C	65°F19°C	0.03 in0.8 mm· 31%	32%	Drizzle	WSW 14 mph23 km/h
DayMostly clear and warm, with a high of 74°F23°C and morning low of 65°F19°C. Windy from the SW at 15 to 17 mph25 to 28 km/h. 23% chance of drizzle in the morning. NightPartly cloudy, with a low around 66°F19°C. Breezy from the WSW at 13 to 14 mph21 to 22 km/h. 31% chance of drizzle before dawn.
	WednesdayOct 14	65°F18°C	55°F13°C	0.04 in1 mm· 45%	80%	Light Rain	NNW 10 mph16 km/h
DayOvercast and mild, with a high of 60°F16°C. Breezy from the NW at 9 to 12 mph15 to 19 km/h. 45% chance of light rain in the morning. NightMostly cloudy, with a low around 55°F13°C. Breezy from the NNW at 10 to 12 mph17 to 19 km/h. 14% chance of drizzle before dawn.
	ThursdayOct 15	55°F13°C	50°F10°C	0.06 in1.6 mm· 52%	91%	Light Rain	ENE 10 mph17 km/h
DayOvercast and mild, with a high of 55°F13°C and morning low of 50°F10°C. Breezy from the E at 11 mph17 km/h. Dry air. NightOvercast, with a low around 51°F11°C. Breezy from the ENE at 10 to 11 mph17 to 17 km/h. 52% chance of light rain in the evening.
	FridayOct 16	56°F13°C	44°F7°C Feels 37°F3°C	0.43 in10.8 mm· 92%	80%	Light Rain	NW 15 mph24 km/h
DayOvercast and mild, with a high of 56°F13°C. Windy from the WNW at 15 to 18 mph25 to 28 km/h. 92% chance of light rain in the morning. NightMostly cloudy, with a low around 44°F7°C. Windy from the NNW at 14 to 18 mph23 to 30 km/h. 92% chance of light rain overnight.
	SaturdayOct 17	49°F10°C Feels 45°F7°C	38°F3°C Feels 31°F-1°C	0.01 in0.3 mm· 14%	35%	Drizzle	WNW 12 mph20 km/h
DayPartly cloudy and cool, with a high of 49°F10°C and morning low of 38°F3°C. Breezy from the WNW at 12 to 13 mph19 to 20 km/h. Dry air. NightMostly clear, with a low around 39°F4°C. Windy from the WNW at 13 to 16 mph21 to 26 km/h. 14% chance of drizzle overnight.
	SundayOct 18	56°F13°C	42°F6°C Feels 36°F2°C	0.01 in0.2 mm· 2%	13%	Clear	SW 12 mph19 km/h
DayMostly clear and mild, with a high of 56°F13°C and morning low of 42°F6°C. Breezy from the SW at 12 to 13 mph19 to 21 km/h. Dry air. NightMostly clear, with a low around 42°F6°C. Breezy from the SW at 11 to 12 mph18 to 19 km/h.
	MondayOct 19	59°F15°C	49°F9°C Feels 44°F7°C	0.04 in0.9 mm· 13%	57%	Drizzle	SSW 11 mph18 km/h
DayMostly cloudy and mild, with a high of 59°F15°C and morning low of 49°F9°C. Breezy from the SSW at 11 to 12 mph18 to 19 km/h. Dry air. NightMostly cloudy, with a low around 49°F9°C. Breezy from the SSW at 11 to 12 mph17 to 20 km/h. 13% chance of drizzle before dawn.
	TuesdayOct 20	61°F16°C	50°F10°C	0.02 in0.6 mm· 15%	39%	Drizzle	SW 8 mph13 km/h
DayPartly cloudy and mild, with a high of 61°F16°C and morning low of 50°F10°C. Breezy from the SW at 8 mph12 km/h. Dry air. NightPartly cloudy, with a low around 51°F10°C. Breezy from the SSW at 8 to 10 mph13 to 15 km/h. 15% chance of drizzle overnight.
	WednesdayOct 21	61°F16°C	49°F10°C Feels 46°F8°C	0.03 in0.8 mm· 13%	44%	Drizzle	SE 8 mph13 km/h
DayPartly cloudy and mild, with a high of 61°F16°C and morning low of 49°F10°C. Breezy from the SE at 8 to 9 mph14 to 14 km/h. Dry air. NightPartly cloudy, with a low around 49°F10°C. Breezy from the SE at 8 to 9 mph13 to 15 km/h. 13% chance of drizzle in the evening.
	ThursdayOct 22	60°F16°C	53°F12°C	0.19 in4.7 mm· 27%	62%	Showers	SW 10 mph17 km/h
DayMostly cloudy and mild, with a high of 60°F16°C and morning low of 53°F12°C. Breezy from the SW at 11 mph17 km/h. 27% chance of showers in the morning. NightMostly cloudy, with a low around 53°F12°C. Breezy from the SSW at 10 to 11 mph16 to 17 km/h. 24% chance of showers overnight.
	FridayOct 23	58°F14°C	51°F11°C	0.15 in3.7 mm· 23%	65%	Showers	W 10 mph17 km/h
DayMostly cloudy and mild, with a high of 58°F14°C and morning low of 51°F11°C. Breezy from the W at 11 mph17 km/h. 20% chance of drizzle in the morning. Dry air. NightMostly cloudy, with a low around 52°F11°C. Breezy from the W at 10 to 11 mph16 to 17 km/h. 23% chance of showers overnight.
	SaturdayOct 24	57°F14°C	50°F10°C Feels 45°F7°C	0.11 in2.9 mm· 20%	65%	Drizzle	WSW 11 mph17 km/h
DayMostly cloudy and mild, with a high of 57°F14°C and morning low of 50°F10°C. Breezy from the WSW at 11 mph18 km/h. 20% chance of drizzle in the morning. Dry air. NightMostly cloudy, with a low around 50°F10°C. Breezy from the WSW at 10 to 11 mph17 to 18 km/h. 19% chance of drizzle overnight.
	SundayOct 25	55°F13°C	49°F9°C Feels 44°F7°C	0.17 in4.2 mm· 27%	64%	Showers	W 11 mph18 km/h
DayMostly cloudy and mild, with a high of 55°F13°C and morning low of 49°F9°C. Breezy from the WSW at 11 to 12 mph18 to 19 km/h. 27% chance of showers in the morning. Dry air. NightMostly cloudy, with a low around 49°F10°C. Breezy from the W at 11 mph17 km/h. 27% chance of showers overnight.
	MondayOct 26	52°F11°C	46°F8°C Feels 41°F5°C	0.09 in2.3 mm· 22%	61%	Drizzle	W 11 mph17 km/h
DayMostly cloudy and mild, with a high of 52°F11°C and morning low of 46°F8°C. Breezy from the W at 11 mph17 km/h. 22% chance of drizzle in the morning. Dry air. NightMostly cloudy, with a low around 46°F8°C. Breezy from the W at 10 to 11 mph17 to 17 km/h. 19% chance of drizzle overnight.

Nearby Cities

London15 mi24 km Tillsonburg24 mi38 km Strathroy26 mi41 km Woodstock33 mi53 km Norfolk County41 mi65 km Stratford43 mi69 km

About This Forecast

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Coordinates: 42.7736°N, 81.1804°W·Elevation: 232m·Timezone: America/Toronto·Population: 38,909