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

Marshalltown, Marshalltown Municipal Airport (KMIW)

Lat: 42.11°NLon: 92.92°WElev: 971ft.

Fog/Mist

74°F

23°C

Humidity	97%
Wind Speed	NE 3 mph
Barometer	30.02 in (1015.9 mb)
Dewpoint	73°F (23°C)
Visibility	3.00 mi
Last update	15 Aug 9:53 am CDT

More Information:

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

Extended Forecast for

Union IASimilar City Names

Today
High: 82 °F
Mostly Cloudy
then Slight
Chance
T-storms
Tonight
Low: 68 °F
Chance
T-storms then
Chance
Showers
Sunday
High: 81 °F
Partly Sunny
Sunday Night
Low: 60 °F
Mostly Clear
Monday
High: 81 °F
Sunny
Monday Night
Low: 63 °F
Chance
T-storms
Tuesday
High: 82 °F
Chance
Showers then
Chance
T-storms
Tuesday Night
Low: 63 °F
Showers
Wednesday
High: 76 °F
Partly Sunny

Detailed Forecast

Today

A 20 percent chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 82. Light and variable wind.

Tonight

A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Mostly cloudy, with a low around 68. Calm wind becoming west northwest around 5 mph after midnight. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday

Partly sunny, with a high near 81. North northwest wind 6 to 11 mph.

Sunday Night

Mostly clear, with a low around 60. Northwest wind 3 to 7 mph.

Monday

Sunny, with a high near 81. Light and variable wind.

Monday Night

A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 63. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82.

Tuesday Night

Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Low around 63. Chance of precipitation is 80%.

Wednesday

Partly sunny, with a high near 76.

Wednesday Night

Partly cloudy, with a low around 56.

Thursday

Mostly sunny, with a high near 75.

Thursday Night

A 30 percent chance of showers. Partly cloudy, with a low around 57.