The weather in Paris and Île-de-France takes a distinctly autumnal turn for this weekend of October 17-18, 2026. From Paris (75) to Seine-Saint-Denis (93), from the Yvelines (78) to Seine-et-Marne (77), highs will top out between 13 and 17°C, with mornings around 8°C.
The contrast is striking. On Thursday, October 15, Météo-France is still forecasting 23°C in Paris, above the seasonal norm. Two days later, people are pulling out jackets and scarves. We break it down day by day.
The culprit is a shift in the air mass, says François Jobard, a forecaster at Météo-France, describing it as maritime polar air — a classic seasonal phenomenon. The north and northwest of the country are the first to feel it, Île-de-France included.
The wind shifts from north to northeast, pushing this cool air toward the capital, as if a fridge door had been left ajar over France. According to Météo Paris, a cold snap will sweep across the country this weekend before heading out toward the Atlantic.
Friday serves as a transition. The sky will stay fairly clear in the morning, with 13°C at dawn. A disturbance could bring a few light showers to Île-de-France around midday, according to forecasters. In the afternoon, expect temperatures between 19 and 21°C depending on the area, with a northwesterly wind gradually picking up.
Saturday, the chill hits first thing in the morning, with 8 to 9°C. Good news, the day looks dry and sunny. According to the expert forecast from Météo Paris, temperatures will rise to 16°C in the afternoon, with no rain expected.
The north wind is blowing at around 25 km/h, with gusts up to 50 km/h. The chill feels stronger than the thermometer suggests, especially along the Seine’s quays and bridges. The sun sets a little before 7 p.m.
Sunday the mercury dips again. We’ll start around 7 to 8°C and by the afternoon won’t rise much above 13°C in Paris, about 3 degrees below seasonal norms. The sky will be cloudier than the day before.
The weather remains dry for now, though a few drops can't be ruled out by some models. Winds shift to the northeast and ease a bit. A compact umbrella in the bag wouldn’t hurt.
The first weekend of the All Saints' Day holidays is tailor-made for indoor outings. The Paris Motor Show is in its final two days at Paris Expo Porte de Versailles (15th arrondissement), running through Sunday, October 18. Our guide what to do this weekend in Paris and Île-de-France gathers the exhibitions, performances, and current tips and deals.
With kids in tow, our pick of family outings for October 17–18 has plenty to keep the start of the holidays busy. For those hoping to take advantage of Saturday’s clear skies in the region, the 10 outings in Yvelines offer ideas—just make sure you dress warmly.
A transport strike is planned for Saturday, and several lines are undergoing maintenance. Check the disruptions to the metro and RER from October 12 to 18, 2026 before you head out.
Forecasts suggest the chill could intensify at the start of next week, in line with the latest trends. Météo-France, however, does not anticipate a lasting cold spell. No winter just yet, but a genuine return of autumn.
This weather shift isn't enough to lift the drought. Météo-France's September 2026 climate report notes striking heat and historic drought, and soils remain very dry in Île-de-France.
For stargazing enthusiasts, the Orionids peak on the night of October 21-22. And the following weekend, clocks go back one hour on the night of October 24-25, as everyone awaits a possible end to daylight saving time.
These forecasts can still change up until Saturday. For hour-by-hour updates, head to the page météo Paris de Météo-France and to the carte de vigilance. You can also check daily our météo à Paris aujourd'hui et demain.
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Dates and Opening Time
From October 17, 2026 to October 18, 2026
Recommended age
For all
