My Profile
  1. Member Settings
  2. My Devices
  3. Sign Out
Log In
    Favorites
        More Settings
      Elev 413 ft, 27.375 °S 55.899 °W

      Posadas, AR

      Libertador Gral D Jose De San Martin Airport Station81°
      Updated: 3:10 AM GMT-03:00 on September 21, 2026 (GMT -3)
      6 minutes ago
      80°
      62°
      81
      Feels Like 84
      Fair
      N
      9
      Gusts 19 mph
      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
        Today
        Mon 09/21
        High 79°f
         99% Precip. / 0.42 in
        Thunderstorms likely this morning. Then a chance of scattered thunderstorms this afternoon. High 79F. ENE winds shifting to S at 10 to 20 mph. Chance of rain 100%.
        Tonight
        Mon 09/21
        Low 54°f
         46% Precip. / 0.02 in
        Showers early, then partly cloudy overnight. Low 54F. Winds SSE at 10 to 20 mph. Chance of rain 50%.
        Tomorrow
        Tue 09/22
        High 67°f49°f
         7% Precip. / 0 in
        Intervals of clouds and sunshine. High 67F. Winds S at 10 to 15 mph.
        Hourly Forecast
        Now
        78°
        4AM
        39%
        77°
        5AM
        100%
        76°
        6AM
        76%
        75°
        6:34AM
        Sunrise
        7AM
        100%
        73°
        8AM
        88%
        72°
        9AM
        73°
        10AM
        33%
        74°
        11AM
        47%
        76°
        12PM
        50%
        76°
        1PM
        35%
        77°
        2PM
        77°
        3PM
        38%
        77°
        4PM
        34%
        76°
        5PM
        36%
        75°
        6PM
        74°
        6:39PM
        Sunset
        7PM
        72°
        8PM
        69°
        9PM
        33%
        68°
        10PM
        46%
        67°
        11PM
        65°
        12AM
        63°
        1AM
        63°
        2AM
        62°
        3AM
        60°
        Precipitation
        100%
        Storms continuing through 9 AM
        Pollen
        Grass Pollen
        Moderate
        Air Quality
        58
        Moderate
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.56 in
        2. Visibility 6 miles
        3. Clouds Partly Cloudy
        4. Dew Point69°F
        5. Humidity 75%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         SARP Station History
        Almanac for September 21, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 80°F 79°F 98°F 2017
        4. Low 62°F 60°F 42°F 1998
        5. Rain/Snow Depth
        6. Precipitation 0.44 in 0.17 in -
        7. Snow 0 in - in -
        Almanac for September 22, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 67°F 80°F 98°F
        4. Low 62°F 60°F 46°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:34 AM 6:39 PM
        3. Civil Twilight 6:10 AM 7:02 PM
        4. Nautical Twilight 5:43 AM 7:29PM
        5. Astronomical Twilight 5:16 AM 7:57 PM
        1. Length of Visible Light 12h 51m
        2. Length of Day 12h 5m
        3. Tomorrow will be 1 minute 37 seconds longer
        1. Moon 2:02 PM 3:24 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
        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