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Hergiswil bei Willisau weather 15 days
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–Hergiswil bei Willisau weather 15 days, from 14 Nov to 29 Nov: 0 day(s) of clear skies expected, highs from 0 to 12 °C and 78.7 mm of precipitation in total. Day-by-day table (Open-Meteo model).
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Today |  freezing fog | −2 °C | 5 °C | 0.0 mm | 6 km/h |
| Tomorrow |  showers | 2 °C | 10 °C | 2.5 mm | 9 km/h |
| Mon 16 Nov | showers | 4 °C | 8 °C | 10.3 mm | 31 km/h |
| Tue 17 Nov | rain | 4 °C | 12 °C | 7.6 mm | 34 km/h |
| Wed 18 Nov |  overcast | 7 °C | 10 °C | 2.1 mm | 38 km/h |
| Thu 19 Nov | light rain | 6 °C | 11 °C | 6.6 mm | 32 km/h |
| Fri 20 Nov |  snow | −1 °C | 6 °C | 8.7 mm | 32 km/h |
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Sat 21 Nov | fog | −2 °C | 7 °C | 0.0 mm | 10 km/h |
| Sun 22 Nov |  light drizzle | 0 °C | 7 °C | 3.8 mm | 11 km/h |
| Mon 23 Nov | light drizzle | 0 °C | 7 °C | 0.4 mm | 10 km/h |
| Tue 24 Nov | overcast | 1 °C | 7 °C | 0.0 mm | 6 km/h |
| Wed 25 Nov | snow | 0 °C | 2 °C | 6.0 mm | 4 km/h |
| Thu 26 Nov | snow | −2 °C | 0 °C | 5.4 mm | 5 km/h |
| Fri 27 Nov | overcast | −2 °C | 3 °C | 0.0 mm | 4 km/h |
| Sat 28 Nov | snow showers | −3 °C | 2 °C | 9.9 mm | 11 km/h |
| Sun 29 Nov | snow showers | −2 °C | 2 °C | 15.4 mm | 24 km/h |
And at 20, 25 or 30 days? No model seriously forecasts that far. Climatology takes over: the November norm is 4.5 °C in Hergiswil bei Willisau, the December norm 1.8 °C (MeteoSwiss 1991–2020, monthly means measured nearby).
Frequently asked questions
Which will be the warmest day of the next 15 days in Hergiswil bei Willisau?
tuesday 17 Nov, with a high of 12 °C. The coolest will be thursday 26 Nov, with 0 °C.
How many rainy days are expected in Hergiswil bei Willisau over 15 days?
11 days with at least 1 mm, for 78.7 mm in total. The wettest: sunday 29 Nov (15.4 mm).
What is the outlook for next week in Hergiswil bei Willisau?
Cooler than this one: an average high of 4.8 °C against 8.8 °C.
Will the fortnight be warmer than normal in Hergiswil bei Willisau?
No: an expected mean of 3.4 °C, 1.1 °C below the MeteoSwiss 1991–2020 norm for November (4.5 °C).
Will it snow in Hergiswil bei Willisau in the next 15 days?
Yes: 5 days with snow, 23 cm in total, mostly sunday 29 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 Hergiswil bei Willisau: the most honest estimate beyond two weeks.
meteo-ch.ch · Open-Meteo data, MeteoSwiss norms 1991–2020