National Weather Service United States Department of Commerce

Heavy rain possible for the northern Rockies & Plains; severe storms for the Northern Plains

An unseasonably strong storm system in the northwest U.S. will bring showers and thunderstorms, with locally heavy rainfall, to the northern Rockies and northern Plains. Isolated flash floods will be possible in these areas. Some storms could become severe in parts of the Dakotas into Minnesota, with large hail and damaging winds. In addition, temperatures will be 10 to 20 degrees below average.
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Current Conditions

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San Juan PR

7 Day Forecast

For More Weather Information:

San Juan, PR Local Forecast Office

Today

Heavy Rain Chance for Measurable Precipitation 70%

Heavy
Rain

High: 30 °C

Tonight

Isolated Showers Chance for Measurable Precipitation 20%

Isolated
Showers

Low: 24 °C

Sunday

Scattered Showers Chance for Measurable Precipitation 30%

Scattered
Showers

High: 33 °C

Sunday
Night

Scattered Showers Chance for Measurable Precipitation 30%

Scattered
Showers

Low: 26 °C

Monday

Isolated Showers Chance for Measurable Precipitation 20%

Isolated
Showers

High: 32 °C

Monday
Night

Isolated Showers Chance for Measurable Precipitation 20%

Isolated
Showers

Low: 26 °C

Tuesday

Isolated Showers Chance for Measurable Precipitation 20%

Isolated
Showers

High: 32 °C

Tuesday
Night

Isolated Showers Chance for Measurable Precipitation 20%

Isolated
Showers

Low: 26 °C

Wednesday

Isolated Showers Chance for Measurable Precipitation 20%

Isolated
Showers

High: 32 °C

Detailed Forecast

  • Today Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 11am. Some of the storms could produce heavy rainfall. Cloudy, with a high near 30. South southeast wind 27 to 32 km/h. Chance of precipitation is 70%. New rainfall amounts between 7.5 mm and 1 cm possible.
  • Tonight Isolated showers. Mostly cloudy, with a low around 24. South southeast wind 10 to 14 km/h. Chance of precipitation is 20%.
  • Sunday Scattered showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 33. Heat index values as high as 38. Southeast wind 10 to 16 km/h. Chance of precipitation is 30%. New rainfall amounts between 2.5 and 5 mm possible.
  • Sunday Night Scattered showers and thunderstorms before 10pm, then isolated showers. Partly cloudy, with a low around 26. Southeast wind 5 to 10 km/h becoming calm. Chance of precipitation is 30%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.
  • Monday Isolated showers. Mostly sunny, with a high near 32. Southeast wind 13 to 18 km/h increasing to 19 to 24 km/h in the afternoon. Chance of precipitation is 20%.
  • Monday Night Isolated showers. Partly cloudy, with a low around 26. Southeast wind around 14 km/h. Chance of precipitation is 20%.
  • Tuesday Isolated showers. Mostly sunny, with a high near 32. East southeast wind 21 to 23 km/h. Chance of precipitation is 20%.
  • Tuesday Night Isolated showers. Partly cloudy, with a low around 26. East southeast wind around 14 km/h. Chance of precipitation is 20%.
  • Wednesday Isolated showers. Mostly sunny, with a high near 32. East wind 16 to 21 km/h. Chance of precipitation is 20%.
  • Wednesday Night Isolated showers. Partly cloudy, with a low around 27. Chance of precipitation is 20%.
  • Thursday Isolated showers. Mostly sunny, with a high near 32. Chance of precipitation is 20%.
  • Thursday Night Isolated showers. Partly cloudy, with a low around 26. Chance of precipitation is 20%.
  • Friday Isolated showers. Sunny, with a high near 32. Chance of precipitation is 20%.