Current Conditions

Nepean, Ontario

72°F22°C

Rain

Wind

S 6 mph10 km/h

Humidity

91%

Cloud Cover

99%

As of Wednesday, September 2, 2026 at 4:07 PM EDT

Today's Outlook

Day

Overcast and warm, with a high of 73°F23°C. Breezy from the S at 7 mph11 km/h. 92% chance of light rain throughout the day. Humid.

Night

Overcast, with a low around 68°F20°C. Light wind from the SSW around 6 mph9 km/h. 98% chance of rain throughout the night.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Rain	High 73°F23°C	Low 68°F20°C	Precip 0.61 in15.6 mm98%	Cloud 99%	Wind S 6 mph10 km/h	Wednesday: Overcast and warm, with a high of 73°F23°C. Breezy from the S at 7 mph11 km/h. 92% chance of light rain throughout the day. Humid. Wednesday Night: Overcast, with a low around 68°F20°C. Light wind from the SSW around 6 mph9 km/h. 98% chance of rain throughout the night.
Showers	High 77°F25°C	Low 64°F18°C	Precip 0.06 in1.5 mm49%	Cloud 64%	Wind W 5 mph8 km/h	Thursday: Mostly cloudy and warm, with a high of 77°F25°C and morning low of 64°F18°C. Breezy from the W at 6 to 7 mph9 to 11 km/h. 25% chance of drizzle in the afternoon. Thursday Night: Mostly cloudy, with a low around 64°F18°C. Light wind from the W around 5 mph8 km/h. 49% chance of showers overnight.
Drizzle	High 73°F23°C	Low 61°F16°C	Precip 0.02 in0.4 mm31%	Cloud 38%	Wind NW 7 mph11 km/h	Friday: Partly cloudy and warm, with a high of 73°F23°C and morning low of 63°F17°C. Breezy from the NW at 8 to 9 mph12 to 14 km/h. 31% chance of drizzle in the afternoon. Friday Night: Partly cloudy, with a low around 61°F16°C. Breezy from the NW at 6 to 7 mph10 to 11 km/h.
Drizzle	High 71°F22°C	Low 59°F15°C	Precip 0.04 in0.9 mm44%	Cloud 46%	Wind N 6 mph10 km/h	Saturday: Mostly cloudy and warm, with a high of 71°F22°C and morning low of 62°F16°C. Breezy from the NNE at 7 mph11 km/h. 44% chance of drizzle throughout the day. Saturday Night: Partly cloudy, with a low around 59°F15°C. Breezy from the N at 6 to 7 mph9 to 11 km/h. 13% chance of drizzle.
Clear	High 74°F23°C	Low 53°F12°C	Precip 0 in0 mm—	Cloud 33%	Wind NNE 4 mph7 km/h	Sunday: Partly cloudy and warm, with a high of 74°F23°C and morning low of 56°F14°C. Light wind from the NNE around 4 mph7 km/h. Sunday Night: Mostly clear, with a low around 53°F12°C. Light wind from the N around 4 mph7 km/h.
Drizzle	High 76°F24°C	Low 53°F12°C	Precip 0.02 in0.5 mm12%	Cloud 48%	Wind WNW 5 mph8 km/h	Monday: Mostly cloudy and warm, with a high of 76°F24°C and morning low of 56°F14°C. Light wind from the WNW around 5 mph8 km/h. 12% chance of drizzle in the afternoon. Monday Night: Partly cloudy, with a low around 53°F12°C. Light wind from the WNW around 5 mph8 km/h.
Drizzle	High 73°F23°C	Low 55°F13°C	Precip 0.02 in0.4 mm10%	Cloud 72%	Wind SSW 5 mph8 km/h	Tuesday: Mostly cloudy and warm, with a high of 73°F23°C and morning low of 57°F14°C. Light wind from the SSW around 4 mph7 km/h. Tuesday Night: Mostly cloudy, with a low around 55°F13°C. Light wind from the SSW around 5 mph9 km/h. 10% chance of drizzle overnight.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 2	73°F23°C	68°F20°C	0.61 in15.6 mm· 98%	99%	Rain	S 6 mph10 km/h
DayOvercast and warm, with a high of 73°F23°C. Breezy from the S at 7 mph11 km/h. 92% chance of light rain throughout the day. Humid. NightOvercast, with a low around 68°F20°C. Light wind from the SSW around 6 mph9 km/h. 98% chance of rain throughout the night.
	ThursdaySep 3	77°F25°C	64°F18°C	0.06 in1.5 mm· 49%	64%	Showers	W 5 mph8 km/h
DayMostly cloudy and warm, with a high of 77°F25°C and morning low of 64°F18°C. Breezy from the W at 6 to 7 mph9 to 11 km/h. 25% chance of drizzle in the afternoon. NightMostly cloudy, with a low around 64°F18°C. Light wind from the W around 5 mph8 km/h. 49% chance of showers overnight.
	FridaySep 4	73°F23°C	61°F16°C	0.02 in0.4 mm· 31%	38%	Drizzle	NW 7 mph11 km/h
DayPartly cloudy and warm, with a high of 73°F23°C and morning low of 63°F17°C. Breezy from the NW at 8 to 9 mph12 to 14 km/h. 31% chance of drizzle in the afternoon. NightPartly cloudy, with a low around 61°F16°C. Breezy from the NW at 6 to 7 mph10 to 11 km/h.
	SaturdaySep 5	71°F22°C	59°F15°C	0.04 in0.9 mm· 44%	46%	Drizzle	N 6 mph10 km/h
DayMostly cloudy and warm, with a high of 71°F22°C and morning low of 62°F16°C. Breezy from the NNE at 7 mph11 km/h. 44% chance of drizzle throughout the day. NightPartly cloudy, with a low around 59°F15°C. Breezy from the N at 6 to 7 mph9 to 11 km/h. 13% chance of drizzle.
	SundaySep 6	74°F23°C	53°F12°C	0 in0 mm· —	33%	Clear	NNE 4 mph7 km/h
DayPartly cloudy and warm, with a high of 74°F23°C and morning low of 56°F14°C. Light wind from the NNE around 4 mph7 km/h. NightMostly clear, with a low around 53°F12°C. Light wind from the N around 4 mph7 km/h.
	MondaySep 7	76°F24°C	53°F12°C	0.02 in0.5 mm· 12%	48%	Drizzle	WNW 5 mph8 km/h
DayMostly cloudy and warm, with a high of 76°F24°C and morning low of 56°F14°C. Light wind from the WNW around 5 mph8 km/h. 12% chance of drizzle in the afternoon. NightPartly cloudy, with a low around 53°F12°C. Light wind from the WNW around 5 mph8 km/h.
	TuesdaySep 8	73°F23°C	55°F13°C	0.02 in0.4 mm· 10%	72%	Drizzle	SSW 5 mph8 km/h
DayMostly cloudy and warm, with a high of 73°F23°C and morning low of 57°F14°C. Light wind from the SSW around 4 mph7 km/h. NightMostly cloudy, with a low around 55°F13°C. Light wind from the SSW around 5 mph9 km/h. 10% chance of drizzle overnight.
	WednesdaySep 9	77°F25°C	61°F16°C	0.17 in4.4 mm· 35%	81%	Light Rain	SSW 8 mph13 km/h
DayOvercast and warm, with a high of 77°F25°C and morning low of 63°F17°C. Breezy from the SSW at 8 to 10 mph14 to 16 km/h. 30% chance of light rain throughout the day. NightMostly cloudy, with a low around 61°F16°C. Breezy from the SSW at 8 to 9 mph12 to 15 km/h. 35% chance of light rain throughout the night.
	ThursdaySep 10	76°F24°C	64°F18°C	0.19 in4.8 mm· 33%	67%	Showers	W 9 mph14 km/h
DayMostly cloudy and warm, with a high of 76°F24°C and morning low of 67°F20°C. Breezy from the W at 9 to 10 mph15 to 17 km/h. 29% chance of light rain throughout the day. NightMostly cloudy, with a low around 64°F18°C. Breezy from the W at 8 to 9 mph13 to 14 km/h. 33% chance of showers throughout the night.
	FridaySep 11	70°F21°C	59°F15°C	0.1 in2.6 mm· 21%	61%	Showers	WNW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 70°F21°C and morning low of 59°F15°C. Breezy from the WNW at 7 to 8 mph12 to 13 km/h. 21% chance of drizzle throughout the day. NightMostly cloudy, with a low around 59°F15°C. Breezy from the WNW at 7 mph11 km/h. 15% chance of showers throughout the night.
	SaturdaySep 12	71°F22°C	55°F13°C	0.11 in2.8 mm· 23%	60%	Drizzle	SW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 71°F22°C and morning low of 56°F14°C. Breezy from the SW at 7 to 8 mph11 to 12 km/h. 20% chance of drizzle throughout the day. NightMostly cloudy, with a low around 55°F13°C. Breezy from the SW at 6 to 7 mph10 to 11 km/h. 23% chance of drizzle throughout the night.
	SundaySep 13	72°F22°C	57°F14°C	0.17 in4.4 mm· 22%	64%	Showers	WSW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 72°F22°C and morning low of 58°F15°C. Breezy from the WSW at 7 to 8 mph12 to 13 km/h. 22% chance of showers throughout the day. NightMostly cloudy, with a low around 57°F14°C. Breezy from the SW at 7 mph11 km/h. 22% chance of showers throughout the night.
	MondaySep 14	73°F23°C	58°F14°C	0.11 in2.7 mm· 18%	60%	Drizzle	WSW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 73°F23°C and morning low of 59°F15°C. Breezy from the WSW at 7 to 8 mph12 to 13 km/h. 18% chance of drizzle throughout the day. NightMostly cloudy, with a low around 58°F14°C. Light wind from the WSW around 6 mph10 km/h. 14% chance of drizzle throughout the night.
	TuesdaySep 15	72°F22°C	57°F14°C	0.15 in3.7 mm· 24%	57%	Showers	WSW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 72°F22°C and morning low of 58°F15°C. Breezy from the WSW at 7 to 8 mph11 to 13 km/h. 24% chance of drizzle throughout the day. NightMostly cloudy, with a low around 57°F14°C. Breezy from the WSW at 6 to 7 mph10 to 11 km/h. 18% chance of showers throughout the night.
	WednesdaySep 16	71°F22°C	57°F14°C	0.15 in3.7 mm· 22%	54%	Showers	WSW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 71°F22°C and morning low of 58°F14°C. Breezy from the WSW at 7 to 8 mph12 to 13 km/h. 21% chance of showers throughout the day. NightMostly cloudy, with a low around 57°F14°C. Breezy from the WSW at 7 mph11 km/h. 22% chance of showers 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