15-day forecast for Porrentruy

From 27 Sep to 12 Oct in Porrentruy: 2 day(s) of clear skies expected, highs from 13 to 29 °C and 38.4 mm of precipitation in total. Day-by-day table (Open-Meteo model).

Day	Weather	Min	Max	Precip.	Wind	Confidence
Today	partly cloudy	11 °C	29 °C	0.0 mm	9 km/h	high
Tomorrow	overcast	15 °C	29 °C	0.0 mm	12 km/h	high
Tue 29 Sep	overcast	12 °C	26 °C	0.0 mm	9 km/h	high
Wed 30 Sep	overcast	16 °C	24 °C	0.3 mm	6 km/h	medium
Thu 1 Oct	light rain	15 °C	19 °C	7.7 mm	7 km/h	medium
Fri 2 Oct	fog	14 °C	20 °C	0.0 mm	11 km/h	medium
Sat 3 Oct	fog	14 °C	22 °C	0.0 mm	8 km/h	high

Day	Weather	Min	Max	Precip.	Wind	Confidence
Sun 4 Oct	showers	12 °C	16 °C	18.3 mm	11 km/h
Mon 5 Oct	light drizzle	11 °C	16 °C	2.7 mm	13 km/h
Tue 6 Oct	sunny	8 °C	15 °C	0.0 mm	12 km/h
Wed 7 Oct	light drizzle	9 °C	14 °C	1.2 mm	15 km/h
Thu 8 Oct	light drizzle	7 °C	14 °C	3.0 mm	12 km/h
Fri 9 Oct	light drizzle	8 °C	13 °C	0.6 mm	12 km/h
Sat 10 Oct	drizzle	7 °C	13 °C	4.2 mm	17 km/h
Sun 11 Oct	light drizzle	7 °C	17 °C	0.5 mm	16 km/h
Mon 12 Oct	overcast	– °C	– °C	– mm	– km/h

Confidence index: agreement of 4 independent models (ICON, GFS, IFS, ARPEGE) on the daily high and on rain. High = highs within 2 °C and the same rain verdict; low = more than 4 °C apart or models split on rain.

And at 20, 25 or 30 days? No model seriously forecasts that far. Climatology takes over: the October norm is 10.5 °C in Porrentruy, the November norm 5.6 °C (MeteoSwiss 1991–2020, monthly means measured nearby).

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