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Ollon weather 15 days
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–Ollon weather 15 days, from 14 Nov to 29 Nov: 0 day(s) of clear skies expected, highs from 6 to 16 °C and 97.1 mm of precipitation in total. Day-by-day table (Open-Meteo model).
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Today |  fog | 4 °C | 9 °C | 0.0 mm | 5 km/h |
| Tomorrow |  light rain | 7 °C | 14 °C | 4.8 mm | 9 km/h |
| Mon 16 Nov | showers | 8 °C | 12 °C | 5.0 mm | 14 km/h |
| Tue 17 Nov | rain | 11 °C | 16 °C | 10.3 mm | 12 km/h |
| Wed 18 Nov | rain | 9 °C | 13 °C | 12.4 mm | 14 km/h |
| Thu 19 Nov | showers | 9 °C | 14 °C | 9.0 mm | 11 km/h |
| Fri 20 Nov | showers | 4 °C | 9 °C | 4.9 mm | 20 km/h |
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Sat 21 Nov |  overcast | 4 °C | 11 °C | 0.0 mm | 6 km/h |
| Sun 22 Nov |  drizzle | 4 °C | 13 °C | 8.0 mm | 7 km/h |
| Mon 23 Nov | drizzle | 3 °C | 11 °C | 1.0 mm | 4 km/h |
| Tue 24 Nov | light drizzle | 3 °C | 11 °C | 0.8 mm | 5 km/h |
| Wed 25 Nov | light drizzle | 5 °C | 8 °C | 2.8 mm | 6 km/h |
| Thu 26 Nov | light drizzle | 2 °C | 8 °C | 1.2 mm | 5 km/h |
| Fri 27 Nov | overcast | 2 °C | 10 °C | 0.0 mm | 4 km/h |
| Sat 28 Nov |  snow showers | 1 °C | 7 °C | 20.2 mm | 8 km/h |
| Sun 29 Nov | snow showers | 2 °C | 6 °C | 16.6 mm | 12 km/h |
And at 20, 25 or 30 days? No model seriously forecasts that far. Climatology takes over: the November norm is 5.9 °C in Ollon, the December norm 2.7 °C (MeteoSwiss 1991–2020, monthly means measured nearby).
Frequently asked questions
Which will be the warmest day of the next 15 days in Ollon?
tuesday 17 Nov, with a high of 16 °C. The coolest will be sunday 29 Nov, with 6 °C.
How many rainy days are expected in Ollon over 15 days?
12 days with at least 1 mm, for 97.1 mm in total. The wettest: saturday 28 Nov (20.2 mm).
What is the outlook for next week in Ollon?
Cooler than this one: an average high of 10.4 °C against 12.3 °C.
Will the fortnight be warmer than normal in Ollon?
Yes: an expected mean of 7.8 °C, 1.9 °C above the MeteoSwiss 1991–2020 norm for November (5.9 °C).
Will it snow in Ollon in the next 15 days?
Yes: 2 days with snow, 9 cm in total, mostly saturday 28 Nov.
Are these 15-day forecasts reliable?
Reliability decreases with the horizon: excellent at 3 days, good up to 7, indicative beyond 10. Each passing day sharpens the rest.
Can the weather be forecast a month ahead?
No, not day by day. That is why this page completes the 16 forecast days with the MeteoSwiss monthly norms for Ollon: the most honest estimate beyond two weeks.
meteo-ch.ch · Open-Meteo data, MeteoSwiss norms 1991–2020