Severe Thunderstorms in the Central Plains and Lower Missouri Valley; Heat Continues in the Southeast and Southwest

Severe thunderstorms capable of large hail and damaging wind gusts are forecast to impact the central Plains into the Lower Missouri Valley through this afternoon. Dangerous heat persists across the southern Plains, Southeast U.S. and Puerto Rico this week, and will return to the Southwest today. 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

81°F

27°C

Humidity	58%
Wind Speed	W 10 mph
Barometer	29.94 in (1012.6 mb)
Dewpoint	65°F (18°C)
Visibility	10.00 mi
Heat Index	83°F (28°C)
Last update	18 Aug 1:53 pm CDT

More Information:

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

Extended Forecast for

Rockwell IASimilar City Names

This Afternoon
High: 81 °F
Chance
T-storms
Tonight
Low: 59 °F
Chance
T-storms then
Mostly Cloudy
Wednesday
High: 79 °F
Patchy Fog
then Mostly
Sunny
Wednesday Night
Low: 57 °F
Mostly Clear
Thursday
High: 80 °F
Mostly Sunny
then Slight
Chance
T-storms
Thursday Night
Low: 61 °F
Chance
T-storms then
Chance
Showers
Friday
High: 81 °F
Slight Chance
T-storms then
Slight Chance
Showers
Friday Night
Low: 60 °F
Slight Chance
T-storms
Saturday
High: 78 °F
Sunny

Detailed Forecast

This Afternoon

A 30 percent chance of showers and thunderstorms, mainly after 3pm. Partly sunny, with a high near 81. West wind 5 to 7 mph.

Tonight

A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 59. Light and variable wind.

Wednesday

Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 79. Calm wind.

Wednesday Night

Mostly clear, with a low around 57. Calm wind.

Thursday

A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 80. Calm wind becoming south southwest 5 to 9 mph in the morning. Chance of precipitation is 20%.

Thursday Night

A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 61. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday

A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Sunny, with a high near 81. Chance of precipitation is 20%.

Friday Night

A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 60.

Saturday

Sunny, with a high near 78.

Saturday Night

Mostly clear, with a low around 55.

Sunday

Partly sunny, with a high near 75.

Sunday Night

Mostly cloudy, with a low around 58.

Monday

Partly sunny, with a high near 79.