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      Elev 197 ft, 64.005 °N 20.813 °W

      Selfoss, IS

      Arnarbaeli Station46°
      Updated: 10:06 PM GMT on September 16, 2026 (GMT +0)
      just now
      53°
      43°
      46
      Feels Like 46
      Partly Cloudy
      N
      3
      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
        Wed 09/16
        Low 43°f
         49% Precip. / 0.04 in
        Partly cloudy skies during the evening will give way to cloudy skies and light rain after midnight. Low 43F. Winds light and variable. Chance of rain 50%.
        Tomorrow
        Thu 09/17
        High 52°f
         56% Precip. / 0.03 in
        Cloudy with occasional light rain...mainly in the morning. High 52F. Winds W at 10 to 15 mph. Chance of rain 60%.
        Tomorrow night
        Thu 09/17
        Low 41°f
         13% Precip. / 0 in
        Cloudy. Low 41F. Winds WSW at 5 to 10 mph.
        Hourly Forecast
        Now
        46°
        11PM
        38%
        45°
        12AM
        45°
        1AM
        45°
        2AM
        49%
        45°
        3AM
        48%
        45°
        4AM
        35%
        44°
        5AM
        35%
        44°
        6AM
        49%
        44°
        6:51AM
        Sunrise
        7AM
        56%
        44°
        8AM
        35%
        45°
        9AM
        48°
        10AM
        35%
        49°
        11AM
        35%
        50°
        12PM
        50°
        1PM
        51°
        2PM
        51°
        3PM
        51°
        4PM
        50°
        5PM
        50°
        6PM
        49°
        7PM
        48°
        7:41PM
        Sunset
        8PM
        47°
        9PM
        47°
        10PM
        46°
        Precipitation
        56%
        Rain possible around 10:45 PM
        Pollen
        None
        Air Quality
        17
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 28.94 in
        2. Visibility 5 miles
        3. Clouds Partly Cloudy
        4. Dew Point44°F
        5. Humidity 96%
        6. Rainfall 0.59 in
        7. Snow Depth 0 in
         BISF Station History
        Almanac for
        1. Forecast Average Record
        2. Temperature
        3. High 53°F -°F -°F
        4. Low 43°F -°F -°F
        5. Rain/Snow Depth
        6. Precipitation 0.04 in - in -
        7. Snow 0 in - in -
        Almanac for
        1. Forecast Average Record
        2. Temperature
        3. High 52°F -°F -°F
        4. Low 43°F -°F -°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:49 AM 7:45 PM
        3. Civil Twilight 6:00 AM 8:33 PM
        4. Nautical Twilight 4:59 AM 9:34PM
        5. Astronomical Twilight 3:45 AM 10:46 PM
        1. Length of Visible Light 14h 33m
        2. Length of Day 12h 56m
        3. Tomorrow will be 6 minutes 24 seconds shorter
        1. Moon 4:31 PM 6:16 PM
        2. Waxing Crescent29% of the Moon is Illuminated
        Sep 18
        Waxing Half First Qtr
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Precipitation
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