Current Conditions

Nepean, Ontario

71°F22°C

Drizzle

Wind

NNE 3 mph4 km/h

Humidity

67%

Cloud Cover

96%

As of Tuesday, September 8, 2026 at 3:19 PM EDT

Today's Outlook

Day

Overcast and warm, with a high of 72°F22°C. Light wind from the NE around 2 mph3 km/h. 12% chance of drizzle in the afternoon.

Night

Overcast, with a low around 61°F16°C. Light wind from the SE around 5 mph7 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Drizzle	High 72°F22°C	Low 61°F16°C	Precip 0 in0.1 mm12%	Cloud 98%	Wind SE 3 mph5 km/h	Tuesday: Overcast and warm, with a high of 72°F22°C. Light wind from the NE around 2 mph3 km/h. 12% chance of drizzle in the afternoon. Tuesday Night: Overcast, with a low around 61°F16°C. Light wind from the SE around 5 mph7 km/h.
Rain	High 70°F21°C	Low 59°F15°C	Precip 0.48 in12.3 mm99%	Cloud 98%	Wind S 8 mph14 km/h	Wednesday: Overcast and warm, with a high of 68°F20°C and morning low of 61°F16°C. Breezy from the S at 8 to 10 mph13 to 17 km/h. 97% chance of rain throughout the day. Wednesday Night: Overcast, with a low around 59°F15°C. Breezy from the SSW at 9 to 12 mph14 to 19 km/h. 99% chance of rain throughout the night.
Drizzle	High 69°F20°C	Low 55°F13°C	Precip 0 in0.1 mm10%	Cloud 55%	Wind W 10 mph17 km/h	Thursday: Mostly cloudy and warm, with a high of 69°F20°C and morning low of 63°F17°C. Breezy from the W at 12 to 13 mph19 to 21 km/h. Thursday Night: Partly cloudy, with a low around 55°F13°C. Breezy from the W at 9 to 10 mph14 to 17 km/h. 10% chance of drizzle.
Clear	High 70°F21°C	Low 48°F9°CFeels 45°F7°C	Precip 0 in0 mm—	Cloud 12%	Wind W 6 mph10 km/h	Friday: Mostly clear and warm, with a high of 70°F21°C and morning low of 50°F10°C. Breezy from the WNW at 7 to 8 mph11 to 12 km/h. Dry air. Friday Night: Mostly clear, with a low around 48°F9°C. Light wind from the WSW around 5 mph9 km/h.
Clear	High 76°F24°C	Low 49°F10°C	Precip 0.02 in0.4 mm8%	Cloud 38%	Wind S 7 mph11 km/h	Saturday: Partly cloudy and warm, with a high of 76°F24°C and morning low of 52°F11°C. Breezy from the S at 7 to 9 mph11 to 14 km/h. Saturday Night: Partly cloudy, with a low around 49°F10°C. Breezy from the SSW at 6 to 7 mph10 to 12 km/h.
Showers	High 74°F23°C	Low 60°F15°C	Precip 0.22 in5.6 mm54%	Cloud 66%	Wind WSW 8 mph12 km/h	Sunday: Mostly cloudy and warm, with a high of 74°F23°C and morning low of 65°F18°C. Breezy from the WSW at 8 to 9 mph13 to 14 km/h. 54% chance of showers throughout the day. Sunday Night: Mostly cloudy, with a low around 60°F15°C. Breezy from the WSW at 7 to 8 mph12 to 12 km/h. 31% chance of showers throughout the night.
Partly Cloudy	High 67°F19°C	Low 53°F12°C	Precip 0.02 in0.4 mm5%	Cloud 43%	Wind NW 7 mph11 km/h	Monday: Partly cloudy and mild, with a high of 67°F19°C and morning low of 54°F12°C. Breezy from the NW at 7 to 8 mph11 to 13 km/h. Dry air. Monday Night: Partly cloudy, with a low around 53°F12°C. Breezy from the NW at 6 to 7 mph10 to 12 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	TuesdaySep 8	72°F22°C	61°F16°C	0 in0.1 mm· 12%	98%	Drizzle	SE 3 mph5 km/h
DayOvercast and warm, with a high of 72°F22°C. Light wind from the NE around 2 mph3 km/h. 12% chance of drizzle in the afternoon. NightOvercast, with a low around 61°F16°C. Light wind from the SE around 5 mph7 km/h.
	WednesdaySep 9	70°F21°C	59°F15°C	0.48 in12.3 mm· 99%	98%	Rain	S 8 mph14 km/h
DayOvercast and warm, with a high of 68°F20°C and morning low of 61°F16°C. Breezy from the S at 8 to 10 mph13 to 17 km/h. 97% chance of rain throughout the day. NightOvercast, with a low around 59°F15°C. Breezy from the SSW at 9 to 12 mph14 to 19 km/h. 99% chance of rain throughout the night.
	ThursdaySep 10	69°F20°C	55°F13°C	0 in0.1 mm· 10%	55%	Drizzle	W 10 mph17 km/h
DayMostly cloudy and warm, with a high of 69°F20°C and morning low of 63°F17°C. Breezy from the W at 12 to 13 mph19 to 21 km/h. NightPartly cloudy, with a low around 55°F13°C. Breezy from the W at 9 to 10 mph14 to 17 km/h. 10% chance of drizzle.
	FridaySep 11	70°F21°C	48°F9°C Feels 45°F7°C	0 in0 mm· —	12%	Clear	W 6 mph10 km/h
DayMostly clear and warm, with a high of 70°F21°C and morning low of 50°F10°C. Breezy from the WNW at 7 to 8 mph11 to 12 km/h. Dry air. NightMostly clear, with a low around 48°F9°C. Light wind from the WSW around 5 mph9 km/h.
	SaturdaySep 12	76°F24°C	49°F10°C	0.02 in0.4 mm· 8%	38%	Clear	S 7 mph11 km/h
DayPartly cloudy and warm, with a high of 76°F24°C and morning low of 52°F11°C. Breezy from the S at 7 to 9 mph11 to 14 km/h. NightPartly cloudy, with a low around 49°F10°C. Breezy from the SSW at 6 to 7 mph10 to 12 km/h.
	SundaySep 13	74°F23°C	60°F15°C	0.22 in5.6 mm· 54%	66%	Showers	WSW 8 mph12 km/h
DayMostly cloudy and warm, with a high of 74°F23°C and morning low of 65°F18°C. Breezy from the WSW at 8 to 9 mph13 to 14 km/h. 54% chance of showers throughout the day. NightMostly cloudy, with a low around 60°F15°C. Breezy from the WSW at 7 to 8 mph12 to 12 km/h. 31% chance of showers throughout the night.
	MondaySep 14	67°F19°C	53°F12°C	0.02 in0.4 mm· 5%	43%	Partly Cloudy	NW 7 mph11 km/h
DayPartly cloudy and mild, with a high of 67°F19°C and morning low of 54°F12°C. Breezy from the NW at 7 to 8 mph11 to 13 km/h. Dry air. NightPartly cloudy, with a low around 53°F12°C. Breezy from the NW at 6 to 7 mph10 to 12 km/h.
	TuesdaySep 15	72°F22°C	51°F11°C	0.17 in4.2 mm· 30%	67%	Showers	S 8 mph12 km/h
DayMostly cloudy and warm, with a high of 72°F22°C and morning low of 54°F12°C. Breezy from the S at 8 to 10 mph14 to 15 km/h. 29% chance of light rain throughout the day. NightMostly cloudy, with a low around 51°F11°C. Breezy from the S at 7 to 8 mph11 to 13 km/h. 30% chance of showers throughout the night.
	WednesdaySep 16	72°F22°C	59°F15°C	0.12 in3.1 mm· 32%	62%	Showers	W 7 mph10 km/h
DayMostly cloudy and warm, with a high of 72°F22°C and morning low of 59°F15°C. Breezy from the W at 7 mph11 km/h. 19% chance of showers throughout the day. NightMostly cloudy, with a low around 59°F15°C. Breezy from the WSW at 6 to 7 mph10 to 12 km/h. 32% chance of showers throughout the night.
	ThursdaySep 17	70°F21°C	55°F13°C	0.13 in3.3 mm· 21%	64%	Showers	S 6 mph9 km/h
DayMostly cloudy and warm, with a high of 70°F21°C and morning low of 56°F13°C. Light wind from the S around 6 mph9 km/h. 21% chance of showers throughout the day. NightMostly cloudy, with a low around 55°F13°C. Light wind from the S around 6 mph10 km/h. 17% chance of showers throughout the night.
	FridaySep 18	68°F20°C	58°F14°C	0.22 in5.6 mm· 36%	69%	Showers	W 7 mph12 km/h
DayMostly cloudy and mild, with a high of 68°F20°C and morning low of 58°F15°C. Breezy from the W at 8 mph13 km/h. 36% chance of light rain throughout the day. NightMostly cloudy, with a low around 58°F14°C. Breezy from the W at 7 mph11 km/h. 27% chance of showers throughout the night.
	SaturdaySep 19	65°F18°C	53°F11°C	0.16 in4 mm· 23%	61%	Showers	W 7 mph12 km/h
DayMostly cloudy and mild, with a high of 65°F18°C and morning low of 53°F12°C. Breezy from the W at 8 mph12 km/h. 21% chance of showers throughout the day. Dry air. NightMostly cloudy, with a low around 53°F11°C. Breezy from the W at 7 mph11 km/h. 23% chance of showers throughout the night.
	SundaySep 20	62°F16°C	50°F10°C	0.16 in4 mm· 24%	67%	Showers	WNW 7 mph12 km/h
DayMostly cloudy and mild, with a high of 62°F16°C and morning low of 51°F10°C. Breezy from the WNW at 7 to 8 mph12 to 13 km/h. 24% chance of light rain throughout the day. Dry air. NightMostly cloudy, with a low around 50°F10°C. Breezy from the W at 7 mph11 km/h. 22% chance of showers throughout the night.
	MondaySep 21	61°F16°C	48°F9°C Feels 45°F7°C	0.11 in2.7 mm· 17%	59%	Showers	NW 7 mph11 km/h
DayMostly cloudy and mild, with a high of 61°F16°C and morning low of 48°F9°C. Breezy from the NW at 7 to 8 mph11 to 12 km/h. 17% chance of drizzle throughout the day. Dry air. NightMostly cloudy, with a low around 48°F9°C. Breezy from the WNW at 6 to 7 mph10 to 11 km/h. 17% chance of showers throughout the night.
	TuesdaySep 22	62°F17°C	46°F8°C Feels 43°F6°C	0.08 in2.1 mm· 17%	59%	Drizzle	WSW 6 mph10 km/h
DayMostly cloudy and mild, with a high of 62°F17°C and morning low of 47°F8°C. Breezy from the WSW at 7 mph11 km/h. 17% chance of drizzle throughout the day. Dry air. NightMostly cloudy, with a low around 46°F8°C. Light wind from the W around 6 mph10 km/h. 10% chance of drizzle throughout the night.

Nearby Cities

Ottawa South4 mi7 km Gloucester4 mi7 km Alta Vista5 mi8 km Ottawa5 mi9 km Centretown6 mi9 km Aylmer6 mi10 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: 45.3362°N, 75.7225°W·Elevation: 87m·Timezone: America/Toronto·Population: 180,000