National Weather Service United States Department of Commerce

Tropical Storm Bertha moving toward northeastern Caribbean

The National Hurricane Center is currently monitoring Tropical Storm Bertha as it moves toward the northeastern Caribbean, with maximum sustained winds of 50 mph. A Tropical Storm Warning is in effect for Puerto Rico and the U.S. Virgin Islands, with Bertha expected to pass just south of Puerto Rico on Saturday, before eventually curving to the north and northeast, away from the U.S. mainland.
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Hazardous Weather Conditions

Current Conditions

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Mason City Municipal Airport IA

7 Day Forecast

For More Weather Information:

Des Moines, IA Local Forecast Office

Tonight

Isolated Thunderstorms Chance for Measurable Precipitation 20%

Isolated
Thunderstorms

Low: 57 °F

Saturday

Mostly Sunny

Mostly
Sunny

High: 83 °F

Saturday
Night

Partly Cloudy

Partly
Cloudy

Low: 61 °F

Sunday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 84 °F

Sunday
Night

Chance Thunderstorms Chance for Measurable Precipitation 40%

Chance
Thunderstorms

Low: 63 °F

Monday

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

High: 82 °F

Monday
Night

Chance Thunderstorms Chance for Measurable Precipitation 40%

Chance
Thunderstorms

Low: 64 °F

Tuesday

Chance Thunderstorms Chance for Measurable Precipitation 40%

Chance
Thunderstorms

High: 80 °F

Tuesday
Night

Thunderstorms Likely Chance for Measurable Precipitation 60%

Thunderstorms
Likely

Low: 63 °F

Detailed Forecast

  • Tonight Isolated showers and thunderstorms before 9pm. Mostly clear, with a low around 57. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
  • Saturday Mostly sunny, with a high near 83. Calm wind becoming south southwest 5 to 7 mph in the morning.
  • Saturday Night Partly cloudy, with a low around 61. South southwest wind 3 to 5 mph.
  • Sunday A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84. South southwest wind 5 to 8 mph.
  • Sunday Night A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63. South wind 3 to 6 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
  • Monday A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
  • Monday Night A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
  • Tuesday A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.
  • Tuesday Night Showers and thunderstorms likely. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
  • Wednesday Showers and thunderstorms likely. Mostly cloudy, with a high near 75. Chance of precipitation is 60%.
  • Wednesday Night A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61.
  • Thursday A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 76.
  • Thursday Night A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
  • Friday A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 77.