Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Fair

69°F

21°C

Humidity	81%
Wind Speed	SE 7 mph
Barometer	30.05 in (1016.5 mb)
Dewpoint	63°F (17°C)
Visibility	10.00 mi
Last update	28 Aug 8:53 pm CDT

More Information:

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

Extended Forecast for

4 Miles SW Mason City IA

Tonight
Low: 65 °F
Partly Cloudy
then Chance
T-storms
Saturday
High: 83 °F
Showers and
Breezy then
Slight Chance
Showers and
Windy
Saturday Night
Low: 70 °F
Partly Cloudy
Sunday
High: 88 °F
Chance
Showers
Sunday Night
Low: 72 °F
Partly Cloudy
Monday
High: 90 °F
Slight Chance
T-storms then
Slight Chance
Showers
Monday Night
Low: 70 °F
Slight Chance
T-storms then
Chance
T-storms
Tuesday
High: 87 °F
Chance
Showers
Tuesday Night
Low: 69 °F
Chance
T-storms

Detailed Forecast

Tonight

A slight chance of showers between 3am and 4am, then a chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 65. South wind 8 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday

Showers and possibly a thunderstorm before noon, then a slight chance of showers between noon and 1pm. High near 83. Windy, with a south southeast wind 14 to 21 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Saturday Night

Partly cloudy, with a low around 70. South wind 9 to 13 mph, with gusts as high as 20 mph.

Sunday

A 30 percent chance of showers before 1pm. Partly sunny, with a high near 88. South wind 9 to 13 mph, with gusts as high as 20 mph.

Sunday Night

Partly cloudy, with a low around 72. South wind around 10 mph.

Monday

A slight chance of showers and thunderstorms. Partly sunny, with a high near 90. Chance of precipitation is 20%.

Monday Night

A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 70.

Tuesday

A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 87.