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

82°F

28°C

Humidity	43%
Wind Speed	S 9 mph
Barometer	30.09 in (1018.1 mb)
Dewpoint	57°F (14°C)
Visibility	10.00 mi
Heat Index	82°F (28°C)
Last update	28 Aug 3:53 pm CDT

More Information:

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

Extended Forecast for

Mason City IASimilar City Names

This Afternoon
High: 82 °F
Partly Sunny
Tonight
Low: 65 °F
Mostly Cloudy
then Chance
Showers
Saturday
High: 83 °F
Breezy.
Showers
Likely then
Slight Chance
Showers
Saturday Night
Low: 70 °F
Increasing
Clouds
Sunday
High: 88 °F
Chance
Showers
Sunday Night
Low: 72 °F
Mostly 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

Detailed Forecast

This Afternoon

Partly sunny, with a high near 82. South southwest wind around 6 mph.

Tonight

A chance of showers between 3am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 65. South wind 7 to 9 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday

Showers and thunderstorms likely before noon, then a slight chance of showers between noon and 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 83. Breezy, with a south southeast wind 13 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

Saturday Night

Increasing clouds, with a low around 70. South wind 8 to 13 mph, with gusts as high as 21 mph.

Sunday

A 30 percent chance of showers before 1pm. Partly sunny, with a high near 88. South wind 8 to 11 mph, with gusts as high as 18 mph.

Sunday Night

Mostly cloudy, with a low around 72.

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 before 1pm. Partly sunny, with a high near 87.