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

Oelwein Municipal Airport (KOLZ)

Lat: 42.68°NLon: 91.98°WElev: 1070ft.

Fog/Mist

72°F

22°C

Humidity	94%
Wind Speed	E 8 mph
Barometer	30.06 in
Dewpoint	70°F (21°C)
Visibility	5.00 mi
Last update	15 Aug 12:35 am CDT

More Information:

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

Extended Forecast for

Sumner IA

Overnight
Low: 70 °F
Heavy Rain
and Patchy
Fog
Saturday
High: 83 °F
Chance
Showers and
Patchy Fog
then Slight
Chance
T-storms
Saturday Night
Low: 67 °F
Chance
T-storms then
Patchy Fog
Sunday
High: 77 °F
Decreasing
Clouds
Sunday Night
Low: 59 °F
Mostly Clear
Monday
High: 77 °F
Sunny
Monday Night
Low: 61 °F
Mostly Clear
then Slight
Chance
T-storms
Tuesday
High: 78 °F
Slight Chance
T-storms then
Chance
T-storms
Tuesday Night
Low: 63 °F
Heavy Rain

Detailed Forecast

Overnight

A slight chance of showers and thunderstorms before 3am, then a chance of showers between 3am and 4am, then a chance of showers and thunderstorms after 4am. Some of the storms could produce heavy rainfall. Patchy fog between 3am and 4am. Otherwise, cloudy, with a steady temperature around 70. East wind around 8 mph. Chance of precipitation is 30%. New rainfall amounts between a half and three quarters of an inch possible.

Saturday

A chance of showers and thunderstorms before 8am, then a slight chance of showers and thunderstorms after 5pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 83. East southeast wind 5 to 8 mph becoming west in the afternoon. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday Night

A 50 percent chance of showers and thunderstorms before midnight. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 67. West northwest wind around 6 mph. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday

Cloudy, then gradually becoming mostly sunny, with a high near 77. North northwest wind 7 to 13 mph, with gusts as high as 18 mph.

Sunday Night

Mostly clear, with a low around 59. Northwest wind 5 to 9 mph.

Monday

Sunny, with a high near 77.

Monday Night

A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 61.

Tuesday

A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 78.

Tuesday Night

Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 63. Chance of precipitation is 80%.