Widespread Showers in the Eastern US; Severe Thunderstorms in the Plains; Heatwave in the Desert Southwest

Widespread showers and thunderstorms across much of the central and eastern U.S. will produce areas of excessive rainfall, especially in the southern Mid-Atlantic states. Scattered severe thunderstorms are expected from Montana into portions of the central/southern Plains this weekend. A heatwave will build in the Desert Southwest, in parts of Arizona, southeastern California, and southern Nevada. 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

84°F

29°C

Humidity	61%
Wind Speed	N 7 mph
Barometer	29.96 in (1013.2 mb)
Dewpoint	69°F (21°C)
Visibility	10.00 mi
Heat Index	88°F (31°C)
Last update	14 Jun 5:53 pm CDT

More Information:

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

Extended Forecast for

4 Miles NW Grafton IA

Tonight
Low: 64 °F
Chance
T-storms then
Showers
Likely
Sunday
High: 81 °F
Showers
Likely then
T-storms
Likely
Sunday Night
Low: 65 °F
T-storms
Likely then
Showers
Likely
Monday
High: 86 °F
Chance
T-storms
Monday Night
Low: 66 °F
Showers
Likely
Tuesday
High: 82 °F
Showers
Likely
Tuesday Night
Low: 63 °F
Showers
Likely
Wednesday
High: 79 °F
Showers
Likely
Wednesday Night
Low: 60 °F
Chance
T-storms

Detailed Forecast

Tonight

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 64. North northeast wind around 6 mph becoming south after midnight. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Sunday

Showers likely and possibly a thunderstorm before 8am, then showers and thunderstorms likely, mainly after 1pm. Mostly cloudy, with a high near 81. Southeast wind 6 to 8 mph becoming south southwest in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Sunday Night

Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65. South southeast wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Monday

A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 86. South wind 6 to 10 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Monday Night

Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. South wind around 8 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tuesday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 82. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Tuesday Night

Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. Chance of precipitation is 70%.

Wednesday

Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 79. Chance of precipitation is 60%.

Wednesday Night

A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 60.

Juneteenth

Sunny, with a high near 82.

Thursday Night

A 40 percent chance of showers. Partly cloudy, with a low around 63.

Friday

A 30 percent chance of showers. Mostly sunny, with a high near 86.

Friday Night

A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.

Saturday

Sunny, with a high near 87. Breezy.