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

76°F

24°C

Humidity	54%
Wind Speed	S 6 mph
Barometer	30.16 in (1020.4 mb)
Dewpoint	58°F (14°C)
Visibility	10.00 mi
Heat Index	78°F (26°C)
Last update	28 Aug 10:53 am CDT

More Information:

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

Extended Forecast for

Clear Lake IA

Today
High: 83 °F
Sunny
Tonight
Low: 65 °F
Mostly Cloudy
then Chance
Showers
Saturday
High: 84 °F
Showers
Likely and
Windy
Saturday Night
Low: 70 °F
Mostly Cloudy
Sunday
High: 88 °F
Chance
Showers
Sunday Night
Low: 73 °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

Detailed Forecast

Today

Sunny, with a high near 83. South southwest wind 3 to 7 mph.

Tonight

A 40 percent chance of showers and thunderstorms, mainly after 3am. Increasing clouds, with a low around 65. South wind 8 to 11 mph, with gusts as high as 18 mph. New rainfall amounts between a tenth and quarter 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 84. Windy, with a south wind 15 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday Night

Mostly cloudy, with a low around 70. South wind 10 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 10 to 13 mph, with gusts as high as 20 mph.

Sunday Night

Partly cloudy, with a low around 73.

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.