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15-day forecast for Alpnach
Right now
– 
–From 27 Sep to 12 Oct in Alpnach: 2 day(s) of clear skies expected, highs from 4 to 16 °C and 74.2 mm of precipitation in total. Day-by-day table (Open-Meteo model).
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Today | mostly sunny | 9 °C | 16 °C | 0.0 mm | 9 km/h |
| Tomorrow |  overcast | 9 °C | 16 °C | 0.0 mm | 7 km/h |
| Tue 29 Sep | overcast | 9 °C | 16 °C | 0.0 mm | 7 km/h |
| Wed 30 Sep | overcast | 10 °C | 16 °C | 0.1 mm | 6 km/h |
| Thu 1 Oct |  showers | 7 °C | 10 °C | 5.1 mm | 4 km/h |
| Fri 2 Oct |  fog | 6 °C | 11 °C | 0.0 mm | 8 km/h |
| Sat 3 Oct | overcast | 7 °C | 12 °C | 1.8 mm | 8 km/h |
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Sun 4 Oct | showers | 4 °C | 9 °C | 18.0 mm | 4 km/h |
| Mon 5 Oct | showers | 4 °C | 7 °C | 20.4 mm | 5 km/h |
| Tue 6 Oct |  drizzle | 2 °C | 4 °C | 10.8 mm | 4 km/h |
| Wed 7 Oct | light drizzle | −1 °C | 7 °C | 1.8 mm | 4 km/h |
| Thu 8 Oct | light drizzle | −3 °C | 8 °C | 3.0 mm | 6 km/h |
| Fri 9 Oct | light drizzle | 1 °C | 5 °C | 3.6 mm | 7 km/h |
| Sat 10 Oct | light drizzle | −1 °C | 5 °C | 3.6 mm | 4 km/h |
| Sun 11 Oct | drizzle | 0 °C | 7 °C | 6.0 mm | 10 km/h |
| Mon 12 Oct | overcast | – °C | – °C | – mm | – km/h |
And at 20, 25 or 30 days? No model seriously forecasts that far. Climatology takes over: the October norm is 4.5 °C in Alpnach, the November norm 0.1 °C (MeteoSwiss 1991–2020, monthly means measured nearby).
Frequently asked questions
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 Alpnach: the most honest estimate beyond two weeks.
meteo-ch.ch · Open-Meteo data, MeteoSwiss norms 1991–2020