Heat Persists in the Southwest; Elevated to Critical Fire Weather in the Great Basin; Poor Air Quality in the West

Dangerous heat will persist across the Southwest U.S. through this week, easing by next week. The heat will focus further east in the Great Plains and Mississippi Valley beginning next week. Elevated to locally critical fire weather conditions will persist for the Great Basin today. Poor air quality lingers for the Northwest, Great Basin, Central Rockies into the Plains. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Mostly Cloudy

82°F

28°C

Humidity	62%
Wind Speed	SW 12 mph
Barometer	30.00 in
Dewpoint	68°F (20°C)
Visibility	10.00 mi
Heat Index	85°F (29°C)
Last update	4 Aug 2:45 pm CDT

More Information:

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

Extended Forecast for

South Beloit IL

This Afternoon
High: 85 °F
Slight Chance
T-storms
Tonight
Low: 64 °F
Chance
T-storms then
Showers
Wednesday
High: 73 °F
Showers and
Patchy Fog
then Chance
T-storms
Wednesday Night
Low: 57 °F
Chance
T-storms then
Chance
Showers
Thursday
High: 78 °F
Decreasing
Clouds
Thursday Night
Low: 58 °F
Partly Cloudy
Friday
High: 80 °F
Mostly Sunny
Friday Night
Low: 63 °F
Slight Chance
T-storms
Saturday
High: 80 °F
Mostly Sunny

Detailed Forecast

This Afternoon

A 10 percent chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 85. Southwest wind around 10 mph.

Tonight

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 64. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Wednesday

Showers and thunderstorms, mainly before 11am. Patchy fog before 10am. High near 73. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Wednesday Night

A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 4am. Mostly cloudy, with a low around 57. Northwest wind around 5 mph becoming calm. Chance of precipitation is 30%.

Thursday

Mostly cloudy, then gradually becoming sunny, with a high near 78. Calm wind becoming east around 5 mph.

Thursday Night

Partly cloudy, with a low around 58. Calm wind.

Friday

Mostly sunny, with a high near 80. Calm wind becoming southwest around 5 mph in the afternoon.

Friday Night

A slight chance of showers and thunderstorms. Mostly clear, with a low around 63. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

Saturday

Mostly sunny, with a high near 80.

Saturday Night

A slight chance of showers and thunderstorms, then a chance of showers after 1am. Partly cloudy, with a low around 63. Chance of precipitation is 40%.

Sunday

A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.

Sunday Night

A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.

Monday

A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.

Monday Night

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.

Tuesday

A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 77.