Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Waterloo, Waterloo Municipal Airport (KALO)

Lat: 42.55°NLon: 92.4°WElev: 873ft.

Fair

79°F

26°C

Humidity	90%
Wind Speed	S 6 mph
Barometer	29.97 in (1014.1 mb)
Dewpoint	76°F (24°C)
Visibility	10.00 mi
Heat Index	83°F (28°C)
Last update	16 Aug 11:54 pm CDT

More Information:

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

Extended Forecast for

4 Miles WNW Janesville IA

Overnight
Low: 72 °F
Partly Cloudy
Sunday
High: 90 °F
Mostly Sunny
Sunday Night
Low: 71 °F
Partly Cloudy
then Chance
T-storms
Monday
High: 89 °F
Chance
T-storms then
Chance
Showers
Monday Night
Low: 68 °F
Chance
T-storms
Tuesday
High: 82 °F
Slight Chance
T-storms
Tuesday Night
Low: 61 °F
Partly Cloudy
Wednesday
High: 79 °F
Sunny
Wednesday Night
Low: 58 °F
Clear

Detailed Forecast

Overnight

Partly cloudy, with a low around 72. East southeast wind 3 to 6 mph.

Sunday

Mostly sunny, with a high near 90. Southeast wind 6 to 10 mph.

Sunday Night

A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 71. South southeast wind around 8 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Monday

A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 89. Heat index values as high as 100. South wind 8 to 10 mph becoming west southwest in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Monday Night

A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 68. West wind around 7 mph becoming north after midnight. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday

A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 82.

Tuesday Night

Partly cloudy, with a low around 61.

Wednesday

Sunny, with a high near 79.

Wednesday Night

Clear, with a low around 58.

Thursday

Sunny, with a high near 80.

Thursday Night

Mostly clear, with a low around 59.