My Profile
  1. Member Settings
  2. My Devices
  3. Sign Out
Log In
    Favorites
        More Settings
      Heat Advisory
      until 8:00 PM EDT
      Elev 531 ft, 39.898 °N 76.878 °W

      Spring Grove, PA

      Spring Grove Station72°
      Updated: 3:37 PM EDT on September 2, 2026 (GMT -4)
      6 minutes ago
      80°
      67°
      72
      Feels Like 74
      Sunny
      N
      3
      Higher 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 09/02
        Low 69°f
         80% Precip. / 0.42 in
        Thunderstorms - some may contain locally heavy rain, especially this evening. A few storms may be severe. Low 69F. Winds SSE at 5 to 10 mph. Chance of rain 80%.
        Tomorrow
        Thu 09/03
        High 88°f
         34% Precip. / 0.08 in
        Chance of a shower or two during the morning, followed by partly cloudy skies in the afternoon. High 88F. Winds WSW at 5 to 10 mph. Chance of rain 30%.
        Tomorrow night
        Thu 09/03
        Low 69°f
         49% Precip. / 0.23 in
        Partly cloudy skies early will give way to occasional showers later during the night. Low 69F. Winds light and variable. Chance of rain 50%.
        Hourly Forecast
        Now
        73°
        4PM
        74°
        5PM
        76°
        6PM
        76°
        7PM
        79°
        7:37PM
        Sunset
        8PM
        75°
        9PM
        73°
        10PM
        76%
        73°
        11PM
        46%
        72°
        12AM
        42%
        71°
        1AM
        41%
        71°
        2AM
        72°
        3AM
        71°
        4AM
        70°
        5AM
        70°
        6AM
        70°
        6:37AM
        Sunrise
        7AM
        70°
        8AM
        34%
        71°
        9AM
        33%
        74°
        10AM
        78°
        11AM
        81°
        12PM
        82°
        1PM
        85°
        2PM
        87°
        3PM
        87°
        Precipitation
        76%
        Thunderstorms possible after 10 PM
        Pollen
        Grass Pollen
        Low
        Air Quality
        51
        Moderate
        UV Index
        4
        Moderate
        Additional Conditions
        1. Pressure 30.02 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point71°F
        5. Humidity 92%
        6. Rainfall 0.97 in
        7. Snow Depth 0 in
         KTHV Station History
        Almanac for September 2, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 80°F 84°F 102°F 1953
        4. Low 67°F 59°F 43°F 1895
        5. Rain/Snow Depth
        6. Precipitation 0.42 in 3.6 in -
        7. Snow 0 in 0 in -
        Almanac for September 3, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 88°F 84°F 103°F
        4. Low 67°F 59°F 41°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:36 AM 7:37 PM
        3. Civil Twilight 6:08 AM 8:04 PM
        4. Nautical Twilight 5:35 AM 8:37PM
        5. Astronomical Twilight 5:01 AM 9:11 PM
        1. Length of Visible Light 13h 56m
        2. Length of Day 13h 0m
        3. Tomorrow will be 2 minutes 31 seconds shorter
        1. Moon 10:14 PM 12:39 PM
        2. Waning Gibbous64% of the Moon is Illuminated
        Sep 4
        Waning Half Last Qtr
        Sep 10
        New Moon
        Sep 18
        Waxing Half First Qtr
        Sep 26
        Full Moon
        Precipitation
        Loading…
        Health
        Loading…
        Weather Alerts
        Loading…
        Our AppsAbout UsContactCareersWeather Data APIs
        PWS NetworkWundermap
        Terms of UsePrivacy PolicyCookie NoticeAccessibility StatementAdChoicesData Vendors
        essentialaccessibility.com
        We recognize our responsibility to use data and technology for good. We may use or share your data with our data vendors. Take control of your data.
        Review All Privacy and Ad Settings
        Choose how my information is shared
        Data Rights
        The Weather Company The Weather Channel Weather Underground Storm Radar
        © The Weather Company, LLC 2026
        Glossary