Current Conditions

Guyancourt, Île-de-France

70°F21°C

Drizzle

Wind

W 7 mph12 km/h

Humidity

58%

Cloud Cover

93%

As of Monday, August 31, 2026 at 6:55 PM GMT+2

Today's Outlook

Night

Overcast, with a low around 62°F16°C. Breezy from the WNW at 6 to 7 mph10 to 12 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Drizzle	High 72°F22°C	Low 62°F16°C	Precip 0.02 in0.5 mm69%	Cloud 76%	Wind W 11 mph17 km/h	Monday: Mostly cloudy and warm, with a high of 72°F22°C. Windy from the W at 15 to 16 mph24 to 26 km/h. 69% chance of drizzle throughout the day. Monday Night: Overcast, with a low around 62°F16°C. Breezy from the WNW at 6 to 7 mph10 to 12 km/h.
Partly Cloudy	High 73°F23°C	Low 56°F13°C	Precip 0 in0 mm—	Cloud 64%	Wind WNW 5 mph7 km/h	Tuesday: Partly cloudy and warm, with a high of 73°F23°C and morning low of 56°F13°C. Light wind from the W around 5 mph8 km/h. Tuesday Night: Mostly cloudy, with a low around 56°F13°C. Light wind from the NW around 4 mph7 km/h.
Partly Cloudy	High 76°F25°C	Low 54°F12°C	Precip 0 in0 mm—	Cloud 69%	Wind W 4 mph6 km/h	Wednesday: Mostly cloudy and warm, with a high of 76°F25°C and morning low of 55°F13°C. Light wind from the WSW around 4 mph6 km/h. Wednesday Night: Mostly cloudy, with a low around 54°F12°C. Light wind from the NW around 4 mph6 km/h.
Partly Cloudy	High 80°F26°C	Low 57°F14°C	Precip 0 in0 mm—	Cloud 46%	Wind WSW 6 mph10 km/h	Thursday: Mostly cloudy and warm, with a high of 80°F26°C and morning low of 59°F15°C. Breezy from the WSW at 8 to 9 mph13 to 14 km/h. Thursday Night: Partly cloudy, with a low around 57°F14°C. Light wind from the WSW around 5 mph7 km/h.
Clear	High 85°F29°C	Low 62°F17°C	Precip 0 in0 mm—	Cloud 19%	Wind WSW 6 mph10 km/h	Friday: Mostly clear and warm, with a high of 85°F29°C and morning low of 62°F17°C. Breezy from the WSW at 7 to 9 mph12 to 14 km/h. Friday Night: Mostly clear, with a low around 62°F17°C. Light wind from the W around 5 mph9 km/h.
Partly Cloudy	High 81°F27°C	Low 62°F16°C	Precip 0 in0.1 mm2%	Cloud 47%	Wind NNW 4 mph7 km/h	Saturday: Mostly cloudy and warm, with a high of 81°F27°C and morning low of 62°F17°C. Light wind from the NW around 4 mph6 km/h. Saturday Night: Partly cloudy, with a low around 62°F16°C. Light wind from the N around 5 mph8 km/h.
Partly Cloudy	High 88°F31°C	Low 62°F17°C	Precip 0 in0.1 mm3%	Cloud 44%	Wind SSE 7 mph12 km/h	Sunday: Partly cloudy and hot, with a high of 88°F31°C and morning low of 62°F17°C. Breezy from the SSE at 8 to 9 mph13 to 15 km/h. Sunday Night: Partly cloudy, with a low around 62°F17°C. Breezy from the SSE at 7 to 8 mph11 to 13 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	MondayAug 31	72°F22°C	62°F16°C	0.02 in0.5 mm· 69%	76%	Drizzle	W 11 mph17 km/h
DayMostly cloudy and warm, with a high of 72°F22°C. Windy from the W at 15 to 16 mph24 to 26 km/h. 69% chance of drizzle throughout the day. NightOvercast, with a low around 62°F16°C. Breezy from the WNW at 6 to 7 mph10 to 12 km/h.
	TuesdaySep 1	73°F23°C	56°F13°C	0 in0 mm· —	64%	Partly Cloudy	WNW 5 mph7 km/h
DayPartly cloudy and warm, with a high of 73°F23°C and morning low of 56°F13°C. Light wind from the W around 5 mph8 km/h. NightMostly cloudy, with a low around 56°F13°C. Light wind from the NW around 4 mph7 km/h.
	WednesdaySep 2	76°F25°C	54°F12°C	0 in0 mm· —	69%	Partly Cloudy	W 4 mph6 km/h
DayMostly cloudy and warm, with a high of 76°F25°C and morning low of 55°F13°C. Light wind from the WSW around 4 mph6 km/h. NightMostly cloudy, with a low around 54°F12°C. Light wind from the NW around 4 mph6 km/h.
	ThursdaySep 3	80°F26°C	57°F14°C	0 in0 mm· —	46%	Partly Cloudy	WSW 6 mph10 km/h
DayMostly cloudy and warm, with a high of 80°F26°C and morning low of 59°F15°C. Breezy from the WSW at 8 to 9 mph13 to 14 km/h. NightPartly cloudy, with a low around 57°F14°C. Light wind from the WSW around 5 mph7 km/h.
	FridaySep 4	85°F29°C	62°F17°C	0 in0 mm· —	19%	Clear	WSW 6 mph10 km/h
DayMostly clear and warm, with a high of 85°F29°C and morning low of 62°F17°C. Breezy from the WSW at 7 to 9 mph12 to 14 km/h. NightMostly clear, with a low around 62°F17°C. Light wind from the W around 5 mph9 km/h.
	SaturdaySep 5	81°F27°C	62°F16°C	0 in0.1 mm· 2%	47%	Partly Cloudy	NNW 4 mph7 km/h
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 62°F17°C. Light wind from the NW around 4 mph6 km/h. NightPartly cloudy, with a low around 62°F16°C. Light wind from the N around 5 mph8 km/h.
	SundaySep 6	88°F31°C	62°F17°C	0 in0.1 mm· 3%	44%	Partly Cloudy	SSE 7 mph12 km/h
DayPartly cloudy and hot, with a high of 88°F31°C and morning low of 62°F17°C. Breezy from the SSE at 8 to 9 mph13 to 15 km/h. NightPartly cloudy, with a low around 62°F17°C. Breezy from the SSE at 7 to 8 mph11 to 13 km/h.
	MondaySep 7	79°F26°C	66°F19°C	0.03 in0.7 mm· 17%	64%	Drizzle	WSW 8 mph13 km/h
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 66°F19°C. Breezy from the WSW at 9 to 10 mph15 to 16 km/h. 17% chance of drizzle around midday. NightMostly cloudy, with a low around 66°F19°C. Breezy from the WSW at 7 to 8 mph12 to 13 km/h.
	TuesdaySep 8	71°F22°C	60°F16°C	0.15 in3.7 mm· 31%	70%	Light Rain	WSW 9 mph15 km/h
DayMostly cloudy and warm, with a high of 71°F22°C and morning low of 60°F16°C. Breezy from the WSW at 11 to 12 mph17 to 19 km/h. 31% chance of light rain throughout the day. NightMostly cloudy, with a low around 61°F16°C. Breezy from the WSW at 8 to 10 mph13 to 16 km/h. 26% chance of showers throughout the night.
	WednesdaySep 9	67°F20°C	55°F13°C	0.11 in2.9 mm· 23%	59%	Drizzle	W 10 mph15 km/h
DayMostly cloudy and mild, with a high of 67°F20°C and morning low of 55°F13°C. Breezy from the W at 11 mph17 km/h. 21% chance of drizzle throughout the day. NightMostly cloudy, with a low around 56°F13°C. Breezy from the W at 8 to 9 mph14 to 15 km/h. 23% chance of drizzle throughout the night.
	ThursdaySep 10	68°F20°C	52°F11°C	0.06 in1.6 mm· 16%	64%	Drizzle	W 7 mph11 km/h
DayMostly cloudy and mild, with a high of 68°F20°C and morning low of 52°F11°C. Breezy from the W at 8 mph13 km/h. 16% chance of drizzle throughout the day. NightMostly cloudy, with a low around 52°F11°C. Breezy from the W at 6 to 7 mph10 to 11 km/h. 11% chance of drizzle throughout the night.
	FridaySep 11	69°F21°C	53°F12°C	0.08 in2.1 mm· 24%	65%	Drizzle	WSW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 69°F21°C and morning low of 53°F12°C. Breezy from the WSW at 7 to 8 mph12 to 13 km/h. 24% chance of drizzle throughout the day. NightMostly cloudy, with a low around 53°F12°C. Light wind from the W around 6 mph10 km/h. 16% chance of drizzle throughout the night.
	SaturdaySep 12	70°F21°C	54°F12°C	0.06 in1.5 mm· 20%	63%	Drizzle	NW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 70°F21°C and morning low of 54°F12°C. Breezy from the WNW at 7 to 8 mph12 to 13 km/h. 20% chance of drizzle throughout the day. NightMostly cloudy, with a low around 54°F12°C. Light wind from the NW around 6 mph10 km/h. 16% chance of drizzle overnight.
	SundaySep 13	71°F22°C	54°F12°C	0.03 in0.8 mm· 12%	59%	Drizzle	NNW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 71°F22°C and morning low of 54°F12°C. Breezy from the NW at 7 to 8 mph12 to 13 km/h. 12% chance of drizzle in the afternoon. NightMostly cloudy, with a low around 54°F12°C. Breezy from the N at 6 to 7 mph10 to 11 km/h. 12% chance of drizzle in the evening.
	MondaySep 14	73°F23°C	54°F12°C	0.04 in0.9 mm· 11%	53%	Drizzle	NW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 73°F23°C and morning low of 54°F12°C. Breezy from the NW at 8 mph12 km/h. 11% chance of drizzle throughout the day. NightMostly cloudy, with a low around 55°F13°C. Breezy from the NNW at 7 mph10 km/h. 11% chance of drizzle before dawn.

Nearby Cities

Saint-Cyr-l'École2 mi3 km Montigny-le-Bretonneux2 mi3 km Saint-Quentin-en-Yvelines3 mi4 km Trappes3 mi4 km Versailles3 mi6 km Le Chesnay4 mi6 km

About This Forecast

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Coordinates: 48.7733°N, 2.0739°E·Elevation: 161m·Timezone: Europe/Paris·Population: 31,989