National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Super Typhoon Bavi to Impact Guam and the Mariana Islands; Excessive Rainfall and Flooding Threat in the Mid-Atlantic

Catastrophic Super Typhoon Bavi's eyewall has reached Rota and is expected to bring dangerous winds, heavy rainfall and storm surge to Guam, Rota, Tinian and Saipan. A Typhoon Warning remains in effect. Heavy to excessive rainfall will continue to bring a flooding threat from coastal Mid-Atlantic to southern New England through Monday. Read More >

Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Overcast

73°F

23°C

Humidity 94%
Wind Speed Calm
Barometer 29.98 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 6 Jul 6:45 am CDT
Extended Forecast for

Herrin ILSimilar City Names

  • Today

    Today: A chance of showers, with thunderstorms also possible after 1pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 88. Calm wind becoming north around 6 mph in the afternoon. Chance of precipitation is 30%.

    High: 88 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers before 10pm. Partly cloudy, with a low around 70. North wind around 5 mph becoming calm in the evening.

    Low: 70 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after noon. Mostly sunny, with a high near 88. Calm wind becoming north around 5 mph in the afternoon.

    High: 88 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 70. Calm wind. Chance of precipitation is 20%.

    Low: 70 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. Light and variable wind.

    High: 90 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 72. Light south wind.

    Low: 72 °F

    Mostly Clear

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 93. South southwest wind 5 to 11 mph.

    High: 93 °F

    Sunny then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 75. South southwest wind around 9 mph.

    Low: 75 °F

    Chance
    T-storms

  • Friday

    Friday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 91. West southwest wind 7 to 10 mph.

    High: 91 °F

    Showers
    Likely

Detailed Forecast

Today
A chance of showers, with thunderstorms also possible after 1pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 88. Calm wind becoming north around 6 mph in the afternoon. Chance of precipitation is 30%.
Tonight
A 20 percent chance of showers before 10pm. Partly cloudy, with a low around 70. North wind around 5 mph becoming calm in the evening.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after noon. Mostly sunny, with a high near 88. Calm wind becoming north around 5 mph in the afternoon.
Tuesday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 70. Calm wind. Chance of precipitation is 20%.
Wednesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 72. Light south wind.
Thursday
A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 93. South southwest wind 5 to 11 mph.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 75. South southwest wind around 9 mph.
Friday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 91. West southwest wind 7 to 10 mph.
Friday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73. South southwest wind 3 to 8 mph.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 89. Southwest wind 5 to 7 mph becoming west northwest in the afternoon.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 71. South wind around 5 mph becoming calm in the evening.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90. Calm wind becoming west northwest 5 to 7 mph in the morning.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Herrin ILSimilar City Names
 37.8°N 89.03°W
Last Update:
5:01 am CDT Jul 6, 2026
Forecast Valid:
6am CDT Jul 6, 2026-6pm CDT Jul 12, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation