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      Grand-Lancy, CH

      undefined Station66°
      Updated: 10:38 PM CEST on September 21, 2026 (GMT +2)
      just now
      77°
      54°
      66
      Feels Like 66
      Clear
      N
      10
      Gusts 21 mph
      Similar temperature is expected tomorrow
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Radar · Now
        Hyper-local data from Weather Underground's network of
        400,000+ personal weather stations worldwide
        Tonight
        Mon 09/21
        Low 52°f
         2% Precip. / 0 in
        Clear skies. Low 52F. Winds NNE at 10 to 15 mph.
        Tomorrow
        Tue 09/22
        High 76°f
         2% Precip. / 0 in
        A mainly sunny sky. High 76F. Winds NE at 10 to 20 mph.
        Tomorrow night
        Tue 09/22
        Low 46°f
         4% Precip. / 0 in
        Clear. Low 46F. Winds NNE at 10 to 15 mph.
        Hourly Forecast
        Now
        66°
        11PM
        65°
        12AM
        62°
        1AM
        60°
        2AM
        57°
        3AM
        56°
        4AM
        55°
        5AM
        54°
        6AM
        54°
        7AM
        53°
        7:22AM
        Sunrise
        8AM
        53°
        9AM
        56°
        10AM
        60°
        11AM
        63°
        12PM
        66°
        1PM
        69°
        2PM
        71°
        3PM
        73°
        4PM
        74°
        5PM
        74°
        6PM
        73°
        7PM
        71°
        7:33PM
        Sunset
        8PM
        68°
        9PM
        65°
        10PM
        63°
        Precipitation
        2%
        Pollen
        Ragweed Pollen
        High
        Air Quality
        38
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 30.28 in
        2. Visibility 8 miles
        3. Clouds Clear
        4. Dew Point46°F
        5. Humidity 50%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         LSGG Station History
        Almanac for September 21, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 77°F 68°F -°F
        4. Low 54°F 50°F -°F
        5. Rain/Snow Depth
        6. Precipitation 0 in 0.12 in -
        7. Snow 0 in 0 in -
        Almanac for September 22, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 76°F 68°F -°F
        4. Low 54°F 50°F -°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:20 AM 7:35 PM
        3. Civil Twilight 6:50 AM 8:05 PM
        4. Nautical Twilight 6:15 AM 8:40PM
        5. Astronomical Twilight 5:39 AM 9:16 PM
        1. Length of Visible Light 13h 14m
        2. Length of Day 12h 14m
        3. Tomorrow will be 3 minutes 14 seconds shorter
        1. Moon 5:26 PM 1:11 AM
        2. Waxing Gibbous75% of the Moon is Illuminated
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Oct 18
        Waxing Half First Qtr
        Precipitation
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