National Weather Service United States Department of Commerce

Severe weather expected for Upper Midwest on Wednesday

A potent storm system will bring a chance of severe thunderstorms to parts of the Upper Midwest on Wednesday and Wednesday night. Very large hail, damaging wind gusts, tornadoes and heavy rain are possible with these storms.
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Hazardous Weather Conditions

Current Conditions

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San Juan PR

7 Day Forecast

For More Weather Information:

San Juan, PR Local Forecast Office

Overnight

Isolated Showers Chance for Measurable Precipitation 20%

Isolated
Showers

Low: 26 °C

Wednesday

Scattered Showers Chance for Measurable Precipitation 40%

Scattered
Showers

High: 32 °C

Wednesday
Night

Scattered Showers Chance for Measurable Precipitation 30%

Scattered
Showers

Low: 26 °C

Thursday

Scattered Showers Chance for Measurable Precipitation 50%

Scattered
Showers

High: 31 °C

Thursday
Night

Scattered Showers Chance for Measurable Precipitation 40%

Scattered
Showers

Low: 26 °C

Friday

Scattered Showers Chance for Measurable Precipitation 40%

Scattered
Showers

High: 31 °C

Friday
Night

Scattered Showers Chance for Measurable Precipitation 30%

Scattered
Showers

Low: 25 °C

Saturday

Scattered Showers Chance for Measurable Precipitation 40%

Scattered
Showers

High: 31 °C

Saturday
Night

Scattered Showers Chance for Measurable Precipitation 40%

Scattered
Showers

Low: 25 °C

Detailed Forecast

  • Overnight Isolated showers. Partly cloudy, with a low around 26. East wind around 14 km/h. Chance of precipitation is 20%.
  • Wednesday Scattered showers, mainly after 10am. Mostly sunny, with a high near 32. Heat index values as high as 37. East wind 21 to 24 km/h. Chance of precipitation is 40%. New precipitation amounts between 2.5 and 5 mm possible.
  • Wednesday Night Scattered showers, mainly after 3am. Partly cloudy, with a low around 26. East wind 16 to 18 km/h. Chance of precipitation is 30%. New precipitation amounts between 1 and 2.5 mm possible.
  • Thursday Scattered showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 31. Heat index values as high as 36. East northeast wind 18 to 26 km/h. Chance of precipitation is 50%. New rainfall amounts between 2.5 and 5 mm possible.
  • Thursday Night Scattered showers and thunderstorms. Mostly cloudy, with a low around 26. East wind 8 to 18 km/h. Chance of precipitation is 40%. New rainfall amounts between 2.5 and 5 mm possible.
  • Friday Scattered showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 31. East wind 13 to 21 km/h. Chance of precipitation is 40%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.
  • Friday Night Isolated showers and thunderstorms, then scattered showers after 7pm. Partly cloudy, with a low around 25. East southeast wind 10 to 13 km/h. Chance of precipitation is 30%.
  • Saturday Scattered showers and thunderstorms. Partly sunny, with a high near 31. East wind 10 to 13 km/h. Chance of precipitation is 40%.
  • Saturday Night Scattered showers and thunderstorms. Partly cloudy, with a low around 25. East southeast wind 11 to 13 km/h. Chance of precipitation is 40%.
  • Sunday Scattered showers and thunderstorms. Mostly sunny, with a high near 32. Chance of precipitation is 30%.
  • Sunday Night Scattered showers and thunderstorms. Partly cloudy, with a low around 25. Chance of precipitation is 30%.
  • Monday Scattered showers. Mostly sunny, with a high near 33. Chance of precipitation is 30%.
  • Monday Night Isolated showers. Partly cloudy, with a low around 26. Chance of precipitation is 20%.
  • Tuesday Isolated showers. Mostly sunny, with a high near 32. Chance of precipitation is 20%.