Thunderstorms and Heavy Rainfall from the Plains to the Mid-Atlantic

Severe thunderstorms producing damaging winds are most likely over parts of the Dakotas into Minnesota from this afternoon into the overnight, with other isolated storms producing hail or wind over the northern High Plains. In the Northern Plains into the Upper Great Lakes and Mid-Atlantic, heavy to excessive rain may bring flash and urban flooding through Wednesday. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Mostly Cloudy

82°F

28°C

Humidity	74%
Wind Speed	NE 6 mph
Barometer	30.02 in
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Heat Index	87°F (31°C)
Last update	7 Jul 3:45 pm CDT

More Information:

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

Extended Forecast for

Herrin IL

This Afternoon
High: 87 °F
Chance
T-storms
Tonight
Low: 70 °F
Chance
T-storms then
Partly Cloudy
Wednesday
High: 88 °F
Chance
T-storms
Wednesday Night
Low: 71 °F
Slight Chance
T-storms then
Mostly Clear
Thursday
High: 93 °F
Sunny then
Slight Chance
T-storms
Thursday Night
Low: 75 °F
Chance
T-storms then
Showers
Likely
Friday
High: 91 °F
T-storms
Likely
Friday Night
Low: 73 °F
T-storms
Likely then
Showers
Likely
Saturday
High: 89 °F
Showers
Likely

Detailed Forecast

This Afternoon

A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. North wind around 5 mph.

Tonight

A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 70. Calm wind.

Wednesday

A 50 percent chance of showers and thunderstorms, mainly between 11am and 5pm. Partly sunny, with a high near 88. Calm wind.

Wednesday Night

A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 71. Calm wind.

Thursday

A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 93. Light south wind becoming south southwest 5 to 9 mph in the morning.

Thursday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 75. South wind 6 to 8 mph. Chance of precipitation is 60%.

Friday

A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then showers and thunderstorms likely after 4pm. Partly sunny, with a high near 91. Southwest wind 7 to 10 mph. Chance of precipitation is 70%.

Friday Night

Showers and thunderstorms likely before 7pm, then showers likely and possibly a thunderstorm after 7pm. Mostly cloudy, with a low around 73. Southwest wind 5 to 7 mph becoming calm in the evening.

Saturday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 89. West southwest wind 3 to 6 mph.

Saturday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Light southwest wind.

Sunday

A chance of showers and thunderstorms. Partly sunny, with a high near 88. Calm wind becoming north 5 to 7 mph in the morning.

Sunday Night

Partly cloudy, with a low around 70. North northeast wind around 6 mph becoming calm in the evening.

Monday

Sunny, with a high near 90. Calm wind becoming east northeast 5 to 7 mph in the morning.