Major Winter Storm Ongoing in the Upper Midwest; Severe Weather Tonight from the Mid-South to the Ohio Valley

A major winter storm will continue to bring blizzard conditions, heavy snowfall, icing, and strong winds through Monday across the Upper Midwest and Upper Great Lakes. A line of storms will be capable of producing widespread damaging winds, tornadoes, and some large hail from the Mid-South to the Ohio Valley and the Southeast through tonight, moving into the Mid-Atlantic Monday. Read More >

Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

A Few Clouds

75°F

24°C

Humidity 79%
Wind Speed E 8 mph
Barometer 30.00 in (1015.9 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 16 Mar 3:56 am AST
Extended Forecast for

3 Miles NE Comerio PR

  • Overnight

    Overnight: Isolated showers.  Partly cloudy, with a low around 68. East wind around 8 mph.  Chance of precipitation is 10%.

    Low: 68 °F

    Isolated
    Showers

  • Monday

    Monday: Scattered showers, mainly between noon and 3pm.  Mostly sunny, with a high near 77. East wind 11 to 16 mph, with gusts as high as 24 mph.  Chance of precipitation is 30%.

    High: 77 °F

    Scattered
    Showers

  • Monday Night

    Monday Night: Isolated showers after 9pm.  Partly cloudy, with a low around 67. East wind 6 to 8 mph.  Chance of precipitation is 20%.

    Low: 67 °F

    Isolated
    Showers

  • Tuesday

    Tuesday: Scattered showers, mainly between noon and 3pm.  Mostly sunny, with a high near 78. East wind 10 to 14 mph, with gusts as high as 21 mph.  Chance of precipitation is 30%.

    High: 78 °F

    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: Isolated showers.  Partly cloudy, with a low around 66. East wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 20%.

    Low: 66 °F

    Isolated
    Showers

  • Wednesday

    Wednesday: Isolated showers after noon.  Mostly sunny, with a high near 78. East wind 6 to 13 mph.  Chance of precipitation is 20%.

    High: 78 °F

    Sunny then
    Isolated
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 67. East wind around 5 mph becoming calm  in the evening.

    Low: 67 °F

    Partly Cloudy

  • Thursday

    Thursday: Scattered showers.  Partly sunny, with a high near 78. East southeast wind 6 to 11 mph.  Chance of precipitation is 50%.

    High: 78 °F

    Scattered
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 66. Light east southeast wind.

    Low: 66 °F

    Partly Cloudy

Detailed Forecast

Overnight
Isolated showers. Partly cloudy, with a low around 68. East wind around 8 mph. Chance of precipitation is 10%.
Monday
Scattered showers, mainly between noon and 3pm. Mostly sunny, with a high near 77. East wind 11 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Monday Night
Isolated showers after 9pm. Partly cloudy, with a low around 67. East wind 6 to 8 mph. Chance of precipitation is 20%.
Tuesday
Scattered showers, mainly between noon and 3pm. Mostly sunny, with a high near 78. East wind 10 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Tuesday Night
Isolated showers. Partly cloudy, with a low around 66. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Wednesday
Isolated showers after noon. Mostly sunny, with a high near 78. East wind 6 to 13 mph. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 67. East wind around 5 mph becoming calm in the evening.
Thursday
Scattered showers. Partly sunny, with a high near 78. East southeast wind 6 to 11 mph. Chance of precipitation is 50%.
Thursday Night
Partly cloudy, with a low around 66. Light east southeast wind.
Friday
Scattered showers. Mostly sunny, with a high near 78. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 66.
Saturday
Showers likely. Partly sunny, with a high near 78. Chance of precipitation is 70%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Sunday
Showers likely. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Comerio PR
 18.24°N 66.2°W (Elev. 1650 ft)
3:44 am AST Mar 16, 2026
4am AST Mar 16, 2026-6pm AST Mar 22, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database