Vierwaldstättersee area 2026-May-20-Wed at 19:47:02Z. custom forecast (GFS 0.5°) by soaringmeteo.ch, © 2016.
Evening forecast with data 12Z.
| Date | | 2026-May-21-Thu | | 2026-May-22-Fri | | 2026-May-23-Sat | | 2026-May-24-Sun | | 2026-May-25-Mon | | 2026-May-26-Tue | | 2026-May-27-Wed | |
| Winter (Summer) time | | 10h (11h) | 13h (14h) | 16h (17h) | | 10h (11h) | 13h (14h) | 16h (17h) | | 10h (11h) | 13h (14h) | 16h (17h) | | 10h (11h) | 13h (14h) | 16h (17h) | | 10h (11h) | 13h (14h) | 16h (17h) | | 10h (11h) | 13h (14h) | 16h (17h) | | 10h (11h) | 13h (14h) | 16h (17h) | |
| Flyable ? +/- | | +++ | --- | +++ | | +++ | +++ | +++ | | +++ | +++ | +++ | | +++ | +++ | --- | | --- | +++ | +++ | | +++ | +++ | --- | | +++ | --- | --- | |
| ThQ % | | 69 | 58 | 89 | | 67 | 91 | 90 | | 63 | 86 | 76 | | 63 | 61 | 45 | | 40 | 91 | 86 | | 70 | 90 | 79 | | 70 | 55 | 32 | |
| General wind kmh | | NNE 4 | NNE 5 | NNE 6 | | NNE 4 | N 5 | N 6 | | N 5 | N 6 | NNE 9 | | NNE 6 | NE 10 | NE 14 | | N 4 | N 5 | N 7 | | NNE 4 | N 6 | N 8 | | N 4 | NNW 8 | WNW 5 | |
| Top wind kmh | | ENE 4 | NE 2 | S 2 | | ESE 2 | WSW 2 | SW 3 | | ENE 3 | NE 6 | ENE 8 | | E 9 | E 12 | E 12 | | ENE 1 | SSE 4 | E 1 | | ESE 1 | SSE 4 | NE 2 | | SSW 2 | WNW 6 | WNW 6 | |
| Cloud cover % | | 5 | 90 | 36 | | 4 | 5 | 2 | | 43 | 8 | 3 | | 5 | 11 | 6 | | 93 | 2 | 40 | | 0 | 9 | 48 | | 2 | 77 | 100 | |
| Rain mm | | 0 | 0 | 0 | | 0 | 0 | 0 | | 0 | 0 | 0 | | 0 | 0 | 0 | | 0 | 0 | 0 | | 0 | 0 | 1 | | 0 | 2 | 4 | |
| Sea level Pressure hPa | | 1027 | 1025 | 1024 | | 1026 | 1025 | 1024 | | 1027 | 1025 | 1025 | | 1027 | 1025 | 1024 | | 1027 | 1025 | 1024 | | 1026 | 1024 | 1023 | | 1022 | 1020 | 1019 | |
| Isotherm 0°C m | | 3400 | 3600 | 3700 | | 4000 | 4000 | 3900 | | 3900 | 3900 | 3900 | | 4000 | 4000 | 4000 | | 4000 | 4100 | 4100 | | 4400 | 4400 | 4300 | | 4300 | 4200 | 4100 | |
| Storm risk | | No or very low risk. | | No or very low risk. | | No or very low risk. | | Middle risk. | | Middle risk. | | High risk. | | Very high risk. | |
NB: not flyable --- if rainy, too cloudy, too windy and high risk of thunderstorm.