National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Critical Fire Weather in the High Plains; Heavy Snow in the Western Mountains and Northern Plains

Gusty winds and low relative humidity will bring critical fire weather to the central and southern High Plains Wednesday. Two Pacific storms will continue impacting the mountains of the western U.S. into Thursday with gusty winds and heavy snow. Heavy snow and gusty winds will continue to impact the northern Plains into the central Great Lakes Wednesday. Read More >

Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

A Few Clouds

73°F

23°C

Humidity 89%
Wind Speed Calm
Barometer 30.02 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 18 Feb 3:56 am AST
Extended Forecast for

San Juan PR

  • Overnight

    Overnight: Isolated showers. Partly cloudy, with a low around 71. East southeast wind 3 to 5 mph. Chance of precipitation is 20%.

    Low: 71 °F

    Isolated
    Showers

  • Wednesday

    Wednesday: Scattered showers, mainly after 3pm. Mostly sunny, with a high near 85. East northeast wind 6 to 14 mph. Chance of precipitation is 40%.

    High: 85 °F

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Isolated showers before midnight, then isolated showers after 3am. Mostly clear, with a low around 72. East southeast wind 6 to 9 mph. Chance of precipitation is 20%.

    Low: 72 °F

    Isolated
    Showers

  • Thursday

    Thursday: Isolated showers. Mostly sunny, with a high near 86. East northeast wind 7 to 14 mph. Chance of precipitation is 10%.

    High: 86 °F

    Isolated
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 72. East wind 8 to 10 mph.

    Low: 72 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 86. East wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 86 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 72. East wind around 9 mph.

    Low: 72 °F

    Partly Cloudy

  • Saturday

    Saturday: Scattered showers, mainly before noon. Mostly sunny, with a high near 86. East wind 10 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    High: 86 °F

    Scattered
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 71. East wind 6 to 8 mph.

    Low: 71 °F

    Partly Cloudy

Detailed Forecast

Overnight
Isolated showers. Partly cloudy, with a low around 71. East southeast wind 3 to 5 mph. Chance of precipitation is 20%.
Wednesday
Scattered showers, mainly after 3pm. Mostly sunny, with a high near 85. East northeast wind 6 to 14 mph. Chance of precipitation is 40%.
Wednesday Night
Isolated showers before midnight, then isolated showers after 3am. Mostly clear, with a low around 72. East southeast wind 6 to 9 mph. Chance of precipitation is 20%.
Thursday
Isolated showers. Mostly sunny, with a high near 86. East northeast wind 7 to 14 mph. Chance of precipitation is 10%.
Thursday Night
Mostly clear, with a low around 72. East wind 8 to 10 mph.
Friday
Sunny, with a high near 86. East wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around 72. East wind around 9 mph.
Saturday
Scattered showers, mainly before noon. Mostly sunny, with a high near 86. East wind 10 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 71. East wind 6 to 8 mph.
Sunday
Scattered showers, mainly after noon. Partly sunny, with a high near 86. Chance of precipitation is 40%.
Sunday Night
Mostly clear, with a low around 71.
Monday
Scattered showers. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
Monday Night
Mostly clear, with a low around 70.
Tuesday
Scattered showers. Partly sunny, with a high near 86. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
San Juan PR
 18.41°N 66.07°W (Elev. 56 ft)
Last Update:
3:32 am AST Feb 18, 2026
Forecast Valid:
4am AST Feb 18, 2026-6pm AST Feb 24, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation