Current Conditions

Waterdown, Ontario

59°F15°C

Partly Cloudy

Wind

ENE 14 mph23 km/h

Humidity

61%

Cloud Cover

76%

As of Tuesday, September 22, 2026 at 2:37 PM EDT

Today's Outlook

Day

Mostly cloudy and mild, with a high of 60°F15°C and morning low of 50°F10°C. Breezy from the ENE at 14 to 15 mph22 to 24 km/h. Dry air.

Night

Mostly clear, with a low around 52°F11°C. Breezy from the ENE at 10 mph16 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Partly Cloudy	High 60°F15°C	Low 50°F10°CFeels 45°F7°C	Precip 0 in0 mm—	Cloud 48%	Wind ENE 12 mph20 km/h	Tuesday: Mostly cloudy and mild, with a high of 60°F15°C and morning low of 50°F10°C. Breezy from the ENE at 14 to 15 mph22 to 24 km/h. Dry air. Tuesday Night: Mostly clear, with a low around 52°F11°C. Breezy from the ENE at 10 mph16 km/h.
Clear	High 63°F17°C	Low 49°F10°CFeels 45°F7°C	Precip 0 in0 mm—	Cloud 29%	Wind ENE 11 mph18 km/h	Wednesday: Partly cloudy and mild, with a high of 63°F17°C and morning low of 51°F10°C. Breezy from the ENE at 13 to 14 mph21 to 23 km/h. Dry air. Wednesday Night: Mostly clear, with a low around 49°F10°C. Breezy from the ENE at 10 to 11 mph16 to 18 km/h.
Clear	High 65°F18°C	Low 49°F9°CFeels 46°F8°C	Precip 0 in0 mm—	Cloud 15%	Wind ENE 7 mph11 km/h	Thursday: Mostly clear and mild, with a high of 65°F18°C and morning low of 49°F9°C. Breezy from the ENE at 8 to 10 mph13 to 16 km/h. Dry air. Thursday Night: Mostly clear, with a low around 49°F9°C. Breezy from the ENE at 6 to 8 mph10 to 14 km/h.
Clear	High 69°F21°C	Low 44°F7°CFeels 41°F5°C	Precip 0 in0 mm—	Cloud 35%	Wind NNE 6 mph10 km/h	Friday: Partly cloudy and warm, with a high of 69°F21°C and morning low of 46°F8°C. Breezy from the NNE at 7 to 8 mph11 to 12 km/h. Dry air. Friday Night: Partly cloudy, with a low around 44°F7°C. Breezy from the N at 6 to 8 mph9 to 13 km/h.
Partly Cloudy	High 71°F22°C	Low 49°F10°CFeels 46°F8°C	Precip 0 in0 mm—	Cloud 47%	Wind N 8 mph13 km/h	Saturday: Partly cloudy and warm, with a high of 71°F22°C and morning low of 50°F10°C. Breezy from the NNE at 8 to 9 mph13 to 14 km/h. Dry air. Saturday Night: Partly cloudy, with a low around 49°F10°C. Breezy from the N at 8 to 9 mph13 to 14 km/h.
Drizzle	High 68°F20°C	Low 54°F12°C	Precip 0.03 in0.8 mm15%	Cloud 67%	Wind N 8 mph13 km/h	Sunday: Mostly cloudy and warm, with a high of 68°F20°C and morning low of 54°F12°C. Breezy from the NNE at 8 to 9 mph14 to 14 km/h. 14% chance of drizzle in the afternoon. Dry air. Sunday Night: Mostly cloudy, with a low around 54°F12°C. Breezy from the N at 7 to 9 mph12 to 14 km/h. 15% chance of drizzle in the evening.
Drizzle	High 69°F21°C	Low 54°F12°C	Precip 0.02 in0.6 mm10%	Cloud 49%	Wind N 5 mph8 km/h	Monday: Mostly cloudy and warm, with a high of 69°F21°C and morning low of 54°F12°C. Light wind from the N around 5 mph9 km/h. 10% chance of drizzle in the morning. Monday Night: Partly cloudy, with a low around 54°F12°C. Light wind from the N around 5 mph8 km/h. 10% chance of drizzle overnight.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	TuesdaySep 22	60°F15°C	50°F10°C Feels 45°F7°C	0 in0 mm· —	48%	Partly Cloudy	ENE 12 mph20 km/h
DayMostly cloudy and mild, with a high of 60°F15°C and morning low of 50°F10°C. Breezy from the ENE at 14 to 15 mph22 to 24 km/h. Dry air. NightMostly clear, with a low around 52°F11°C. Breezy from the ENE at 10 mph16 km/h.
	WednesdaySep 23	63°F17°C	49°F10°C Feels 45°F7°C	0 in0 mm· —	29%	Clear	ENE 11 mph18 km/h
DayPartly cloudy and mild, with a high of 63°F17°C and morning low of 51°F10°C. Breezy from the ENE at 13 to 14 mph21 to 23 km/h. Dry air. NightMostly clear, with a low around 49°F10°C. Breezy from the ENE at 10 to 11 mph16 to 18 km/h.
	ThursdaySep 24	65°F18°C	49°F9°C Feels 46°F8°C	0 in0 mm· —	15%	Clear	ENE 7 mph11 km/h
DayMostly clear and mild, with a high of 65°F18°C and morning low of 49°F9°C. Breezy from the ENE at 8 to 10 mph13 to 16 km/h. Dry air. NightMostly clear, with a low around 49°F9°C. Breezy from the ENE at 6 to 8 mph10 to 14 km/h.
	FridaySep 25	69°F21°C	44°F7°C Feels 41°F5°C	0 in0 mm· —	35%	Clear	NNE 6 mph10 km/h
DayPartly cloudy and warm, with a high of 69°F21°C and morning low of 46°F8°C. Breezy from the NNE at 7 to 8 mph11 to 12 km/h. Dry air. NightPartly cloudy, with a low around 44°F7°C. Breezy from the N at 6 to 8 mph9 to 13 km/h.
	SaturdaySep 26	71°F22°C	49°F10°C Feels 46°F8°C	0 in0 mm· —	47%	Partly Cloudy	N 8 mph13 km/h
DayPartly cloudy and warm, with a high of 71°F22°C and morning low of 50°F10°C. Breezy from the NNE at 8 to 9 mph13 to 14 km/h. Dry air. NightPartly cloudy, with a low around 49°F10°C. Breezy from the N at 8 to 9 mph13 to 14 km/h.
	SundaySep 27	68°F20°C	54°F12°C	0.03 in0.8 mm· 15%	67%	Drizzle	N 8 mph13 km/h
DayMostly cloudy and warm, with a high of 68°F20°C and morning low of 54°F12°C. Breezy from the NNE at 8 to 9 mph14 to 14 km/h. 14% chance of drizzle in the afternoon. Dry air. NightMostly cloudy, with a low around 54°F12°C. Breezy from the N at 7 to 9 mph12 to 14 km/h. 15% chance of drizzle in the evening.
	MondaySep 28	69°F21°C	54°F12°C	0.02 in0.6 mm· 10%	49%	Drizzle	N 5 mph8 km/h
DayMostly cloudy and warm, with a high of 69°F21°C and morning low of 54°F12°C. Light wind from the N around 5 mph9 km/h. 10% chance of drizzle in the morning. NightPartly cloudy, with a low around 54°F12°C. Light wind from the N around 5 mph8 km/h. 10% chance of drizzle overnight.
	TuesdaySep 29	71°F22°C	53°F11°C	0 in0.1 mm· 2%	40%	Clear	WNW 4 mph7 km/h
DayPartly cloudy and warm, with a high of 71°F22°C and morning low of 53°F11°C. Light wind from the W around 4 mph7 km/h. NightPartly cloudy, with a low around 53°F11°C. Light wind from the WNW around 4 mph7 km/h.
	WednesdaySep 30	70°F21°C	54°F12°C	0.04 in1.1 mm· 13%	68%	Drizzle	SSE 6 mph10 km/h
DayMostly cloudy and warm, with a high of 70°F21°C and morning low of 54°F12°C. Breezy from the SSE at 6 to 7 mph10 to 12 km/h. 12% chance of drizzle in the afternoon. NightMostly cloudy, with a low around 54°F12°C. Breezy from the SSE at 6 to 7 mph9 to 11 km/h. 13% chance of drizzle in the evening.
	ThursdayOct 1	68°F20°C	58°F14°C	0.15 in3.7 mm· 22%	71%	Light Rain	SW 7 mph12 km/h
DayMostly cloudy and warm, with a high of 68°F20°C and morning low of 58°F14°C. Breezy from the SSW at 8 mph12 km/h. 22% chance of light rain throughout the day. NightMostly cloudy, with a low around 58°F14°C. Breezy from the SW at 7 mph11 km/h. 19% chance of drizzle throughout the night.
	FridayOct 2	66°F19°C	55°F13°C	0.11 in2.7 mm· 20%	66%	Drizzle	WNW 7 mph12 km/h
DayMostly cloudy and mild, with a high of 66°F19°C and morning low of 55°F13°C. Breezy from the W at 8 mph12 km/h. 20% chance of drizzle throughout the day. NightMostly cloudy, with a low around 56°F13°C. Breezy from the NW at 7 mph11 km/h. 18% chance of drizzle throughout the night.
	SaturdayOct 3	66°F19°C	55°F13°C	0.12 in3 mm· 22%	71%	Drizzle	SW 7 mph12 km/h
DayMostly cloudy and mild, with a high of 66°F19°C and morning low of 55°F13°C. Breezy from the SW at 8 to 9 mph13 to 14 km/h. 22% chance of drizzle throughout the day. NightMostly cloudy, with a low around 55°F13°C. Breezy from the WSW at 7 mph11 km/h. 16% chance of drizzle throughout the night.
	SundayOct 4	64°F18°C	55°F13°C	0.11 in2.7 mm· 24%	65%	Drizzle	W 8 mph12 km/h
DayMostly cloudy and mild, with a high of 64°F18°C and morning low of 55°F13°C. Breezy from the W at 8 to 9 mph13 to 14 km/h. 24% chance of drizzle throughout the day. NightMostly cloudy, with a low around 55°F13°C. Breezy from the W at 7 mph11 km/h. 20% chance of drizzle throughout the night.
	MondayOct 5	63°F17°C	51°F10°C	0.11 in2.7 mm· 19%	55%	Showers	W 8 mph13 km/h
DayMostly cloudy and mild, with a high of 63°F17°C and morning low of 51°F10°C. Breezy from the W at 9 mph14 km/h. 19% chance of showers throughout the day. Dry air. NightMostly cloudy, with a low around 51°F11°C. Breezy from the W at 7 to 8 mph12 to 12 km/h. 16% chance of drizzle throughout the night.
	TuesdayOct 6	63°F17°C	50°F10°C Feels 47°F8°C	0.1 in2.6 mm· 17%	53%	Drizzle	WSW 8 mph13 km/h
DayMostly cloudy and mild, with a high of 63°F17°C and morning low of 50°F10°C. Breezy from the WSW at 8 to 9 mph14 to 15 km/h. 15% chance of drizzle throughout the day. Dry air. NightPartly cloudy, with a low around 50°F10°C. Breezy from the WSW at 7 to 8 mph12 to 13 km/h. 17% chance of drizzle throughout the night.

Nearby Cities

Burlington4 mi7 km Hamilton6 mi10 km Ancaster10 mi15 km Stoney Creek10 mi16 km Milton13 mi20 km Oakville13 mi21 km

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

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Coordinates: 43.3334°N, 79.8829°W·Elevation: 236m·Timezone: America/Toronto·Population: 24,400