Heavy Rain and Thunderstorms in the Plains; Snow in the Northern Rockies

A storm system moving eastward will bring widespread showers and thunderstorms over parts of the Northern Plains to the Southern Plains and Upper Great Lakes through Friday. Heavy snow will continue over parts of the Northern Rockies. Read More >

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fair

66°F

19°C

Humidity	76%
Wind Speed	Calm
Barometer	30.13 in
Dewpoint	58°F (14°C)
Visibility	10.00 mi
Last update	15 Oct 8:55 pm CDT

More Information:

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

Extended Forecast for

Johnston City IL

Tonight
Low: 57 °F
Mostly Clear
Thursday
High: 81 °F
Sunny
Thursday Night
Low: 55 °F
Partly Cloudy
Friday
High: 80 °F
Partly Sunny
Friday Night
Low: 62 °F
Partly Cloudy
Saturday
High: 82 °F
Chance
Showers then
Showers
Likely
Saturday Night
Low: 52 °F
Showers
Sunday
High: 66 °F
Chance
Showers
Sunday Night
Low: 43 °F
Clear

Detailed Forecast

Tonight

Mostly clear, with a low around 57. Calm wind.

Thursday

Sunny, with a high near 81. Light east wind increasing to 5 to 10 mph in the morning.

Thursday Night

Partly cloudy, with a low around 55. East southeast wind around 6 mph.

Friday

Partly sunny, with a high near 80. South southeast wind 5 to 8 mph.

Friday Night

Partly cloudy, with a low around 62. South southeast wind 5 to 7 mph.

Saturday

A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 82. South southwest wind 9 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.

Saturday Night

Showers and possibly a thunderstorm before 1am, then showers likely. Low around 52. South southwest wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.

Sunday

A chance of showers, mainly before 1pm. Mostly sunny, with a high near 66. West northwest wind 14 to 17 mph, with gusts as high as 23 mph.

Sunday Night

Clear, with a low around 43. West southwest wind 3 to 8 mph.

Monday

Sunny, with a high near 72. South southwest wind 6 to 13 mph, with gusts as high as 18 mph.

Monday Night

Mostly clear, with a low around 51. Southwest wind 7 to 9 mph.

Tuesday

A slight chance of showers. Sunny, with a high near 75. West southwest wind 9 to 15 mph, with gusts as high as 21 mph.

Tuesday Night

A slight chance of showers. Mostly clear, with a low around 47. West southwest wind 7 to 9 mph.