Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Mostly Cloudy

74°F

23°C

Humidity	94%
Wind Speed	E 14 G 22 mph
Barometer	30.01 in (1014.5 mb)
Dewpoint	72°F (22°C)
Visibility	10.00 mi
Last update	17 Aug 4:53 am CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

6 Miles NNE Swaledale IA

Overnight
Low: 74 °F
Slight Chance
T-storms
Sunday
High: 88 °F
Decreasing
Clouds
Sunday Night
Low: 70 °F
Chance
T-storms
Monday
High: 85 °F
Chance
T-storms
Monday Night
Low: 66 °F
Chance
T-storms
Tuesday
High: 78 °F
Mostly Sunny
Tuesday Night
Low: 59 °F
Mostly Clear
Wednesday
High: 77 °F
Sunny
Wednesday Night
Low: 58 °F
Mostly Clear

Detailed Forecast

Overnight

A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 74. East wind around 5 mph.

Sunday

Mostly cloudy, then gradually becoming sunny, with a high near 88. Southeast wind 6 to 10 mph.

Sunday Night

A 30 percent chance of showers and thunderstorms, mainly after 3am. Increasing clouds, with a low around 70. Southeast wind around 9 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Monday

A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 85. South wind 8 to 10 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Monday Night

A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 66. West wind around 6 mph becoming north northwest after midnight. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday

Mostly sunny, with a high near 78.

Tuesday Night

Mostly clear, with a low around 59.

Wednesday

Sunny, with a high near 77.

Wednesday Night

Mostly clear, with a low around 58.

Thursday

Sunny, with a high near 78.

Thursday Night

Mostly clear, with a low around 58.