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

Knoxville (KOXV)

Lat: 41.3°NLon: 93.12°WElev: 928ft.

Overcast

82°F

28°C

Humidity	84%
Wind Speed	S 7 mph
Barometer	30.01 in
Dewpoint	77°F (25°C)
Visibility	10.00 mi
Heat Index	90°F (32°C)
Last update	15 Aug 1:35 pm CDT

More Information:

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

Extended Forecast for

Sandyville IA

This Afternoon
High: 84 °F
Chance
Showers
Tonight
Low: 71 °F
Heavy Rain
then Chance
T-storms
Sunday
High: 81 °F
Slight Chance
T-storms
Sunday Night
Low: 63 °F
Mostly Clear
Monday
High: 82 °F
Sunny
Monday Night
Low: 66 °F
Partly Cloudy
Tuesday
High: 84 °F
Slight Chance
T-storms then
Chance
T-storms
Tuesday Night
Low: 66 °F
Showers
Wednesday
High: 78 °F
Partly Sunny

Detailed Forecast

This Afternoon

A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly cloudy, with a high near 84. Light and variable wind. New rainfall amounts between a quarter and half of an inch possible.

Tonight

Showers and thunderstorms likely, mainly before 9pm. Some of the storms could produce heavy rainfall. Cloudy, then gradually becoming partly cloudy, with a low around 71. Calm wind becoming west around 5 mph after midnight. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Sunday

A 20 percent chance of showers and thunderstorms, mainly between 1pm and 2pm. Mostly sunny, with a high near 81. North northwest wind 6 to 13 mph, with gusts as high as 18 mph.

Sunday Night

Mostly clear, with a low around 63. North northwest wind 3 to 8 mph.

Monday

Sunny, with a high near 82. Light west northwest wind.

Monday Night

Partly cloudy, with a low around 66.

Tuesday

A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 84.

Tuesday Night

Showers and possibly a thunderstorm. Low around 66. Chance of precipitation is 80%.

Wednesday

Partly sunny, with a high near 78.