Lala Approaching Hawaii; Flash Flooding Risks; Excessive Heat

Lala, may become a hurricane, is expected to impact Hawaii this weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians continues, with the threat shifting toward the mid-Atlantic later this weekend. Record heat continues for areas of the South. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Overcast

71°F

22°C

Humidity	94%
Wind Speed	SE 10 mph
Barometer	30.06 in (1016.8 mb)
Dewpoint	69°F (21°C)
Visibility	10.00 mi
Last update	15 Aug 3:53 am CDT

More Information:

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

Extended Forecast for

Mason City IASimilar City Names

Overnight
Low: 69 °F
Slight Chance
T-storms and
Patchy Fog
Saturday
High: 80 °F
Patchy Fog
then Chance
Showers
Saturday Night
Low: 67 °F
Heavy Rain
then Mostly
Cloudy
Sunday
High: 77 °F
Decreasing
Clouds
Sunday Night
Low: 57 °F
Mostly Clear
Monday
High: 79 °F
Sunny
Monday Night
Low: 62 °F
Slight Chance
T-storms then
Showers
Likely
Tuesday
High: 79 °F
Chance
Showers then
Showers
Likely
Tuesday Night
Low: 60 °F
Showers

Detailed Forecast

Overnight

A 20 percent chance of showers and thunderstorms. Patchy fog. Otherwise, cloudy, with a steady temperature around 69. East southeast wind around 7 mph.

Saturday

A 30 percent chance of showers and thunderstorms, mainly after 4pm. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 80. East wind around 5 mph becoming calm in the morning. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday Night

A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and midnight. Some of the storms could produce heavy rainfall. Cloudy, then gradually becoming partly cloudy, with a low around 67. Calm wind becoming northwest around 6 mph after midnight. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.

Sunday

Mostly cloudy, then gradually becoming sunny, with a high near 77. North northwest wind 9 to 11 mph, with gusts as high as 20 mph.

Sunday Night

Mostly clear, with a low around 57. North northwest wind 5 to 7 mph becoming calm after midnight.

Monday

Sunny, with a high near 79.

Monday Night

A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 62. Chance of precipitation is 60%.

Tuesday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 79. Chance of precipitation is 60%.

Tuesday Night

Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 60. Chance of precipitation is 80%.

Wednesday

Partly sunny, with a high near 73.

Wednesday Night

Partly cloudy, with a low around 54.

Thursday

Mostly sunny, with a high near 73.

Thursday Night

A 30 percent chance of showers. Partly cloudy, with a low around 56.

Friday

Mostly sunny, with a high near 75.