Current Conditions

Guyancourt, Île-de-France

79°F26°C

Partly Cloudy

Wind

NNE 10 mph16 km/h

Humidity

35%

Cloud Cover

17%

As of Wednesday, July 22, 2026 at 4:34 PM GMT+2

Today's Outlook

Day

Mostly clear and warm, with a high of 79°F26°C. Breezy from the NNE at 10 mph15 km/h. Dry air.

Night

Mostly cloudy, with a low around 69°F21°C. Breezy from the NE at 9 to 10 mph15 to 17 km/h.

7-Day Forecast

Day	Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
WednesdayJul 22	Partly Cloudy	High 79°F26°C	Low 69°F21°C	Precip 0 in0 mm—	Cloud 50%	Wind NNE 9 mph15 km/h	Wednesday: Mostly clear and warm, with a high of 79°F26°C. Breezy from the NNE at 10 mph15 km/h. Dry air. Wednesday Night: Mostly cloudy, with a low around 69°F21°C. Breezy from the NE at 9 to 10 mph15 to 17 km/h.
ThursdayJul 23	Clear	High 78°F26°C	Low 58°F15°C	Precip 0 in0 mm—	Cloud 40%	Wind NE 8 mph13 km/h	Thursday: Mostly cloudy and warm, with a high of 78°F26°C and morning low of 60°F16°C. Breezy from the NNE at 9 to 11 mph15 to 17 km/h. Thursday Night: Partly cloudy, with a low around 58°F15°C. Breezy from the NE at 8 to 10 mph12 to 17 km/h.
FridayJul 24	Clear	High 83°F29°C	Low 56°F13°C	Precip 0 in0 mm—	Cloud 17%	Wind NE 6 mph10 km/h	Friday: Partly cloudy and warm, with a high of 83°F29°C and morning low of 61°F16°C. Breezy from the NE at 7 to 8 mph12 to 13 km/h. Dry air. Friday Night: Mostly clear, with a low around 56°F13°C. Light wind from the NE around 6 mph9 km/h.
SaturdayJul 25	Clear	High 86°F30°C	Low 59°F15°C	Precip 0 in0 mm—	Cloud 30%	Wind NW 7 mph11 km/h	Saturday: Partly cloudy and warm, with a high of 86°F30°C and morning low of 63°F17°C. Breezy from the WNW at 6 to 9 mph9 to 14 km/h. Saturday Night: Partly cloudy, with a low around 59°F15°C. Breezy from the NNW at 7 to 11 mph12 to 18 km/h.
SundayJul 26	Light Rain	High 74°F24°C	Low 62°F17°C	Precip 0.13 in3.3 mm70%	Cloud 75%	Wind W 11 mph17 km/h	Sunday: Overcast and warm, with a high of 74°F24°C and morning low of 63°F17°C. Breezy from the WSW at 12 to 13 mph20 to 21 km/h. 70% chance of light rain throughout the day. Sunday Night: Mostly cloudy, with a low around 62°F17°C. Breezy from the W at 9 to 12 mph15 to 19 km/h. 21% chance of drizzle throughout the night.
MondayJul 27	Drizzle	High 80°F26°C	Low 61°F16°C	Precip 0.01 in0.2 mm10%	Cloud 46%	Wind WNW 7 mph12 km/h	Monday: Mostly cloudy and warm, with a high of 80°F26°C and morning low of 63°F17°C. Breezy from the WNW at 8 mph12 km/h. 10% chance of drizzle. Monday Night: Partly cloudy, with a low around 61°F16°C. Breezy from the NW at 7 to 8 mph11 to 13 km/h.
TuesdayJul 28	Clear	High 87°F30°C	Low 57°F14°C	Precip 0 in0 mm—	Cloud 10%	Wind NE 4 mph7 km/h	Tuesday: Mostly clear and hot, with a high of 87°F30°C and morning low of 61°F16°C. Light wind from the SE around 4 mph6 km/h. Tuesday Night: Mostly clear, with a low around 57°F14°C. Light wind from the NNE around 4 mph7 km/h.

15-Day Forecast

	Day	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Condition	Wind (mph)
	WednesdayJul 22	79°F26°C	69°F21°C	0 in0 mm· —	50%	Partly Cloudy	NNE 9 mph15 km/h
DayMostly clear and warm, with a high of 79°F26°C. Breezy from the NNE at 10 mph15 km/h. Dry air. NightMostly cloudy, with a low around 69°F21°C. Breezy from the NE at 9 to 10 mph15 to 17 km/h.
	ThursdayJul 23	78°F26°C	58°F15°C	0 in0 mm· —	40%	Clear	NE 8 mph13 km/h
DayMostly cloudy and warm, with a high of 78°F26°C and morning low of 60°F16°C. Breezy from the NNE at 9 to 11 mph15 to 17 km/h. NightPartly cloudy, with a low around 58°F15°C. Breezy from the NE at 8 to 10 mph12 to 17 km/h.
	FridayJul 24	83°F29°C	56°F13°C	0 in0 mm· —	17%	Clear	NE 6 mph10 km/h
DayPartly cloudy and warm, with a high of 83°F29°C and morning low of 61°F16°C. Breezy from the NE at 7 to 8 mph12 to 13 km/h. Dry air. NightMostly clear, with a low around 56°F13°C. Light wind from the NE around 6 mph9 km/h.
	SaturdayJul 25	86°F30°C	59°F15°C	0 in0 mm· —	30%	Clear	NW 7 mph11 km/h
DayPartly cloudy and warm, with a high of 86°F30°C and morning low of 63°F17°C. Breezy from the WNW at 6 to 9 mph9 to 14 km/h. NightPartly cloudy, with a low around 59°F15°C. Breezy from the NNW at 7 to 11 mph12 to 18 km/h.
	SundayJul 26	74°F24°C	62°F17°C	0.13 in3.3 mm· 70%	75%	Light Rain	W 11 mph17 km/h
DayOvercast and warm, with a high of 74°F24°C and morning low of 63°F17°C. Breezy from the WSW at 12 to 13 mph20 to 21 km/h. 70% chance of light rain throughout the day. NightMostly cloudy, with a low around 62°F17°C. Breezy from the W at 9 to 12 mph15 to 19 km/h. 21% chance of drizzle throughout the night.
	MondayJul 27	80°F26°C	61°F16°C	0.01 in0.2 mm· 10%	46%	Drizzle	WNW 7 mph12 km/h
DayMostly cloudy and warm, with a high of 80°F26°C and morning low of 63°F17°C. Breezy from the WNW at 8 mph12 km/h. 10% chance of drizzle. NightPartly cloudy, with a low around 61°F16°C. Breezy from the NW at 7 to 8 mph11 to 13 km/h.
	TuesdayJul 28	87°F30°C	57°F14°C	0 in0 mm· —	10%	Clear	NE 4 mph7 km/h
DayMostly clear and hot, with a high of 87°F30°C and morning low of 61°F16°C. Light wind from the SE around 4 mph6 km/h. NightMostly clear, with a low around 57°F14°C. Light wind from the NNE around 4 mph7 km/h.
	WednesdayJul 29	92°F33°C	62°F17°C	0 in0 mm· —	10%	Clear	NE 5 mph8 km/h
DayMostly clear and hot, with a high of 92°F33°C and morning low of 66°F19°C. Light wind from the SE around 5 mph8 km/h. NightMostly clear, with a low around 62°F17°C. Breezy from the NNE at 5 to 7 mph9 to 11 km/h.
	ThursdayJul 30	91°F33°C	65°F18°C	0 in0.1 mm· 3%	36%	Clear	WNW 6 mph10 km/h
DayPartly cloudy and hot, with a high of 91°F33°C and morning low of 67°F19°C. Light wind from the WSW around 6 mph9 km/h. NightPartly cloudy, with a low around 65°F18°C. Light wind from the NNW around 6 mph10 km/h.
	FridayJul 31	89°F32°C	67°F19°C	0.03 in0.8 mm· 11%	50%	Drizzle	SW 7 mph11 km/h
DayMostly cloudy and hot, with a high of 89°F32°C and morning low of 68°F20°C. Breezy from the SW at 7 to 8 mph12 to 13 km/h. 10% chance of drizzle throughout the day. NightMostly cloudy, with a low around 67°F19°C. Breezy from the W at 6 to 7 mph10 to 11 km/h. 11% chance of drizzle in the evening.
	SaturdayAug 1	86°F30°C	67°F19°C	0.06 in1.5 mm· 21%	50%	Drizzle	WSW 7 mph11 km/h
DayMostly cloudy and hot, with a high of 86°F30°C and morning low of 68°F20°C. Breezy from the SW at 7 to 8 mph11 to 12 km/h. 18% chance of drizzle throughout the day. NightPartly cloudy, with a low around 67°F19°C. Breezy from the W at 6 to 7 mph10 to 11 km/h. 21% chance of drizzle throughout the night.
	SundayAug 2	84°F29°C	66°F19°C	0.06 in1.6 mm· 16%	54%	Drizzle	W 7 mph11 km/h
DayMostly cloudy and warm, with a high of 84°F29°C and morning low of 67°F19°C. Breezy from the WSW at 7 to 8 mph11 to 12 km/h. 16% chance of drizzle throughout the day. NightMostly cloudy, with a low around 66°F19°C. Breezy from the WNW at 6 to 7 mph10 to 11 km/h. 14% chance of drizzle throughout the night.
	MondayAug 3	83°F28°C	63°F17°C	0.04 in1.1 mm· 13%	53%	Drizzle	NW 6 mph10 km/h
DayMostly cloudy and warm, with a high of 83°F28°C and morning low of 65°F18°C. Breezy from the W at 7 mph10 km/h. 10% chance of drizzle throughout the day. NightMostly cloudy, with a low around 63°F17°C. Light wind from the NNW around 6 mph10 km/h. 13% chance of drizzle throughout the night.
	TuesdayAug 4	84°F29°C	63°F17°C	0.05 in1.2 mm· 16%	50%	Drizzle	NW 6 mph10 km/h
DayMostly cloudy and warm, with a high of 84°F29°C and morning low of 65°F18°C. Breezy from the WSW at 6 to 7 mph10 to 11 km/h. 13% chance of drizzle throughout the day. NightPartly cloudy, with a low around 63°F17°C. Light wind from the N around 6 mph10 km/h. 16% chance of drizzle in the evening.
	WednesdayAug 5	85°F29°C	64°F18°C	0.05 in1.3 mm· 12%	45%	Drizzle	NNW 6 mph10 km/h
DayPartly cloudy and warm, with a high of 85°F29°C and morning low of 65°F19°C. Breezy from the W at 6 to 7 mph10 to 11 km/h. NightPartly cloudy, with a low around 64°F18°C. Breezy from the N at 6 to 7 mph10 to 11 km/h. 12% chance of drizzle throughout the night.

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