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Hazardous Weather Conditions

Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

A Few Clouds

82°F

28°C

Humidity	77%
Wind Speed	S 16 mph
Barometer	29.79 in (1007.3 mb)
Dewpoint	74°F (23°C)
Visibility	10.00 mi
Heat Index	88°F (31°C)
Last update	20 Jul 12:53 pm CDT

More Information:

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

Extended Forecast for

Sheffield IA

Heat Advisory until July 20, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory until July 20, 08:00pm
NOW until 8:00pm Mon
Heat Advisory
This Afternoon
High: 91 °F
Severe
Thunderstorms
Tonight
Low: 67 °F
Severe
Thunderstorms
then Areas
Smoke
Tuesday
High: 80 °F
Patchy Smoke
and Windy
Tuesday Night
Low: 56 °F
Mostly Clear
Wednesday
High: 77 °F
Sunny
Wednesday Night
Low: 55 °F
Mostly Clear
Thursday
High: 79 °F
Mostly Sunny
Thursday Night
Low: 59 °F
Mostly Cloudy
then Slight
Chance
Showers

Detailed Forecast

This Afternoon

A 40 percent chance of showers and thunderstorms after 3pm. Some of the storms could be severe. Sunny early, then becoming partly sunny, with a high near 91. Heat index values as high as 105. Southwest wind around 15 mph, with gusts as high as 23 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

A 10 percent chance of showers and thunderstorms before 7pm. Some of the storms could be severe. Patchy smoke. Mostly clear, with a low around 67. Northwest wind 8 to 11 mph.

Tuesday

Patchy smoke between 2pm and 4pm. Mostly sunny, with a high near 80. Windy, with a north northwest wind 15 to 21 mph, with gusts as high as 29 mph.

Tuesday Night

Mostly clear, with a low around 56. North northwest wind 5 to 14 mph, with gusts as high as 21 mph.

Wednesday

Sunny, with a high near 77. Light north wind.

Wednesday Night

Mostly clear, with a low around 55.

Thursday

Mostly sunny, with a high near 79.

Thursday Night

A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 59.