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      Elev 531 ft, 39.898 °N 76.878 °W

      Spring Grove, PA

      Spring Grove Station62°
      Updated: 1:25 AM EDT on September 19, 2026 (GMT -4)
      9 minutes ago
      81°
      61°
      62
      Feels Like 62
      Clear
      N
      0
      Lower temperature is expected today
      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
        Fri 09/18
        Low 53°f
         2% Precip. / 0 in
        Mostly clear. Low 53F. Winds light and variable.
        Tomorrow
        Sat 09/19
        High 74°f
         3% Precip. / 0 in
        Partly to mostly cloudy. High 74F. Winds light and variable.
        Tomorrow night
        Sat 09/19
        Low 63°f
         23% Precip. / 0 in
        Mostly cloudy skies. Low 63F. Winds SE at 5 to 10 mph.
        Hourly Forecast
        Now
        61°
        2AM
        60°
        3AM
        59°
        4AM
        58°
        5AM
        56°
        6AM
        55°
        6:52AM
        Sunrise
        7AM
        55°
        8AM
        58°
        9AM
        61°
        10AM
        64°
        11AM
        66°
        12PM
        68°
        1PM
        70°
        2PM
        71°
        3PM
        72°
        4PM
        73°
        5PM
        73°
        6PM
        73°
        7PM
        71°
        7:09PM
        Sunset
        8PM
        67°
        9PM
        66°
        10PM
        65°
        11PM
        66°
        12AM
        65°
        1AM
        64°
        Precipitation
        22%
        Pollen
        Ragweed Pollen
        Moderate
        Air Quality
        29
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 30.13 in
        2. Visibility 10 miles
        3. Clouds Clear
        4. Dew Point56°F
        5. Humidity 84%
        6. Rainfall 0.01 in
        7. Snow Depth 0 in
         KTHV Station History
        Almanac for September 19, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 81°F 79°F 92°F 1983
        4. Low 61°F 54°F 34°F 1959
        5. Rain/Snow Depth
        6. Precipitation 0 in 3.2 in -
        7. Snow 0 in 0 in -
        Almanac for September 20, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 73°F 78°F 93°F
        4. Low 61°F 53°F 30°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:52 AM 7:09 PM
        3. Civil Twilight 6:25 AM 7:36 PM
        4. Nautical Twilight 5:53 AM 8:08PM
        5. Astronomical Twilight 5:21 AM 8:40 PM
        1. Length of Visible Light 13h 11m
        2. Length of Day 12h 17m
        3. Tomorrow will be 2 minutes 36 seconds shorter
        1. Moon 3:28 PM -
        2. Waxing Gibbous59% 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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