Severe Thunderstorms and Heavy Rainfall Across the Midwest into the Great Lakes Region; Significant Heat in the Southwest

Strong to severe storms may produce damaging winds, isolated hail, and a few tornadoes from the Midwest into the lower Great Lakes. These storms may also produce areas of heavy rain and flash flooding. Significant heat will continue across parts of the Desert Southwest into western Texas and north Alaska. Dangerous heat will also build into the Eastern and Central U.S. and continue into next week. Read More >

Hazardous Weather Conditions

Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

A Few Clouds

79°F

26°C

Humidity	54%
Wind Speed	NA
Barometer	29.79 in (1007.6 mb)
Dewpoint	61°F (16°C)
Visibility	10.00 mi
Heat Index	80°F (27°C)
Last update	18 Jun 3:53 pm CDT

More Information:

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

Extended Forecast for

6 Miles SE Mason City IA

Extreme Heat Watch June 21, 12:00pm until June 22, 09:00pm

Click here for hazard details and duration

Extreme Heat Watch

This Afternoon
High: 78 °F
Showers
Likely
Tonight
Low: 59 °F
Showers
Likely then
Mostly Clear
Juneteenth
High: 85 °F
Sunny
Thursday Night
Low: 66 °F
Mostly Clear
then Chance
T-storms
Friday
High: 89 °F
Chance
T-storms and
Breezy then
Sunny and
Windy
Friday Night
Low: 75 °F
Mostly Clear
and Windy
Saturday
High: 94 °F
Sunny and
Windy
Saturday Night
Low: 76 °F
Clear and
Breezy
Sunday
High: 93 °F
Sunny and
Windy

Detailed Forecast

This Afternoon

Showers likely and possibly a thunderstorm. Partly sunny, with a high near 78. North wind around 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 59. West northwest wind 6 to 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Juneteenth

Sunny, with a high near 85. West wind 6 to 10 mph.

Thursday Night

A 40 percent chance of showers and thunderstorms, mainly after 2am. Increasing clouds, with a low around 66. South southwest wind 7 to 11 mph, with gusts as high as 18 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday

A 40 percent chance of showers and thunderstorms, mainly before 9am. Mostly sunny, with a high near 89. Windy, with a south wind 14 to 22 mph, with gusts as high as 31 mph. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday Night

Mostly clear, with a low around 75. Windy.

Saturday

Sunny, with a high near 94. Windy.

Saturday Night

Clear, with a low around 76. Breezy.

Sunday

Sunny, with a high near 93. Windy.

Sunday Night

A 40 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 73. Breezy.

Monday

Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 88. Chance of precipitation is 60%.