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

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

75°F

24°C

Humidity	82%
Wind Speed	SW 8 mph
Barometer	30.01 in (1014.8 mb)
Dewpoint	69°F (21°C)
Visibility	10.00 mi
Last update	16 Aug 3:51 am CDT

More Information:

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

Extended Forecast for

Round Lake Beach IL

Overnight
Low: 72 °F
Slight Chance
T-storms
Saturday
High: 89 °F
Slight Chance
T-storms then
Chance
T-storms
Saturday Night
Low: 69 °F
Chance
T-storms
Sunday
High: 79 °F
Slight Chance
T-storms
Sunday Night
Low: 69 °F
Chance
T-storms
Monday
High: 89 °F
Chance
T-storms
Monday Night
Low: 71 °F
Chance
T-storms
Tuesday
High: 85 °F
Chance
T-storms
Tuesday Night
Low: 64 °F
Mostly Cloudy

Detailed Forecast

Overnight

A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. South southwest wind around 5 mph.

Saturday

A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 89. Heat index values as high as 99. Southwest wind 5 to 10 mph.

Saturday Night

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. South wind around 5 mph becoming north northeast in the evening. Winds could gust as high as 15 mph.

Sunday

A 20 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 79. Northeast wind 5 to 10 mph.

Sunday Night

A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 69. Northeast wind around 5 mph becoming east southeast after midnight. Winds could gust as high as 10 mph.

Monday

A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.

Monday Night

A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.

Tuesday

A chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 85.

Tuesday Night

Mostly cloudy, with a low around 64.

Wednesday

Partly sunny, with a high near 75.

Wednesday Night

Mostly clear, with a low around 62.