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 >

Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Overcast

70°F

21°C

Humidity	97%
Wind Speed	Calm
Barometer	29.94 in (1013.7 mb)
Dewpoint	69°F (21°C)
Visibility	7.00 mi
Last update	16 Aug 4:55 am CDT

More Information:

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

Extended Forecast for

Ontario WI

Today
High: 83 °F
Patchy Fog
then Partly
Sunny
Tonight
Low: 57 °F
Mostly Clear
Monday
High: 84 °F
Sunny
Monday Night
Low: 63 °F
Mostly Clear
then Chance
Showers
Tuesday
High: 83 °F
Partly Sunny
then Chance
Showers
Tuesday Night
Low: 57 °F
Slight Chance
T-storms then
Slight Chance
Showers
Wednesday
High: 79 °F
Mostly Sunny
Wednesday Night
Low: 54 °F
Mostly Clear
Thursday
High: 81 °F
Mostly Sunny

Detailed Forecast

Today

Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 83. Light northwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 20 mph.

Tonight

Mostly clear, with a low around 57. Northwest wind 5 to 8 mph becoming calm in the evening.

Monday

Sunny, with a high near 84. Calm wind becoming west around 6 mph in the afternoon.

Monday Night

A 40 percent chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 63. Light southwest wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday

A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 83. Calm wind becoming west 5 to 7 mph in the morning. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday Night

A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly cloudy, with a low around 57. Light and variable wind. Chance of precipitation is 20%.

Wednesday

Mostly sunny, with a high near 79. Calm wind becoming northwest around 5 mph in the afternoon.

Wednesday Night

Mostly clear, with a low around 54. Calm wind.

Thursday

Mostly sunny, with a high near 81. Light and variable wind.

Thursday Night

A 20 percent chance of showers after 1am. Partly cloudy, with a low around 57. Calm wind.

Friday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82. Calm wind becoming southwest 5 to 8 mph in the morning.

Friday Night

A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 59. Southwest wind around 6 mph becoming calm in the evening.