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      Moderate Warning for Fog
      until 11:00 AM GMT
      Elev 118 ft, 51.818 °N 0.355 °W

      Harpenden, GB

      Harpenden Station40°
      Updated: 8:39 PM GMT on November 8, 2026 (GMT +0)
      41 seconds ago
      50°
      38°
      40
      Feels Like 40
      Fog
      N
      2
      Similar temperature is expected tomorrow
      Wundermap

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       Wundermap
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Now
        Hyper-local data from Weather Underground's network of
        400,000+ personal weather stations worldwide
        Tonight
        Sun 11/08
        Low 37°f
         20% Precip. / 0 in
        Foggy. Low 37F. Winds light and variable.
        Tomorrow
        Mon 11/09
        High 47°f
         20% Precip. / 0 in
        Cloudy skies with some morning fog. High 47F. Winds ENE at 5 to 10 mph.
        Tomorrow night
        Mon 11/09
        Low 40°f
         20% Precip. / 0 in
        Cloudy. Low near 40F. Winds ENE at 5 to 10 mph.
        Hourly Forecast
        Now
        40°
        9PM
        40°
        10PM
        3%
        40°
        11PM
        15%
        39°
        12AM
        15%
        40°
        1AM
        15%
        39°
        2AM
        15%
        39°
        3AM
        18%
        38°
        4AM
        21%
        38°
        5AM
        21%
        39°
        6AM
        21%
        39°
        7AM
        21%
        39°
        7:10AM
        Sunrise
        8AM
        21%
        39°
        9AM
        21%
        40°
        10AM
        20%
        42°
        11AM
        43°
        12PM
        45°
        1PM
        46°
        2PM
        46°
        3PM
        46°
        4PM
        45°
        4:19PM
        Sunset
        5PM
        44°
        6PM
        43°
        7PM
        42°
        8PM
        42°
        Precipitation
        21%
        Pollen
        Ragweed Pollen
        Low
        Air Quality
        109
        Unhealthy for Sensitive Groups
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 30.14 in
        2. Visibility 1.5 miles
        3. Clouds Cloudy
        4. Dew Point39°F
        5. Humidity 96%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         EGGW Station History
        Almanac for November 8, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 50°F 52°F -°F
        4. Low 38°F 41°F -°F
        5. Rain/Snow Depth
        6. Precipitation 0 in 0.1 in -
        7. Snow 0 in - in -
        Almanac for November 9, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 47°F 52°F -°F
        4. Low 37°F 41°F -°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:08 AM 4:21 PM
        3. Civil Twilight 6:31 AM 4:57 PM
        4. Nautical Twilight 5:51 AM 5:38PM
        5. Astronomical Twilight 5:12 AM 6:17 PM
        1. Length of Visible Light 10h 26m
        2. Length of Day 9h 13m
        3. Tomorrow will be 3 minutes 24 seconds shorter
        1. Moon 6:26 AM 3:25 PM
        2. Waning Crescent1% of the Moon is Illuminated
        Nov 9
        New Moon
        Nov 17
        Waxing Half First Qtr
        Nov 24
        Full Moon
        Dec 1
        Waning Half Last Qtr
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