Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Chicago / Wheeling, Pal-Waukee Airport (KPWK)

Lat: 42.12°NLon: 87.9°WElev: 646ft.

Overcast

78°F

26°C

Humidity	76%
Wind Speed	E 12 mph
Barometer	30.11 in (1019.0 mb)
Dewpoint	70°F (21°C)
Visibility	10.00 mi
Heat Index	80°F (27°C)
Last update	17 Aug 1:52 pm CDT

More Information:

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

Extended Forecast for

2 Miles NNW Crystal Lake IL

This Afternoon
High: 79 °F
Partly Sunny
Tonight
Low: 67 °F
Partly Cloudy
then Slight
Chance
T-storms
Monday
High: 89 °F
Chance
T-storms
Monday Night
Low: 70 °F
T-storms
Likely
Tuesday
High: 86 °F
Chance
T-storms
Tuesday Night
Low: 65 °F
Mostly Cloudy
Wednesday
High: 77 °F
Partly Sunny
Wednesday Night
Low: 62 °F
Partly Cloudy
Thursday
High: 80 °F
Sunny

Detailed Forecast

This Afternoon

Partly sunny, with a high near 79. East wind around 10 mph.

Tonight

A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 67. East northeast wind 5 to 10 mph.

Monday

A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89. South wind around 10 mph, with gusts as high as 15 mph.

Monday Night

Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 70. Southwest wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 60%.

Tuesday

A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 86. Southwest wind 5 to 10 mph becoming northwest in the afternoon.

Tuesday Night

Mostly cloudy, with a low around 65.

Wednesday

Partly sunny, with a high near 77.

Wednesday Night

Partly cloudy, with a low around 62.

Thursday

Sunny, with a high near 80.

Thursday Night

Mostly clear, with a low around 60.

Friday

Sunny, with a high near 84.