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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Thunderstorm in Vicinity Light Rain Fog/Mist

59°F

15°C

Humidity	100%
Wind Speed	E 7 mph
Barometer	29.97 in (1014.7 mb)
Dewpoint	59°F (15°C)
Visibility	6.00 mi
Last update	5 Mar 3:52 am CST

More Information:

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

Extended Forecast for

Saint Johns IL

Flood Watch until March 5, 12:00pm

Click here for hazard details and duration

Flood Watch

Flood Watch until March 5, 12:00pm
NOW until 12:00pm Thu
Flood Watch
Overnight
Low: 59 °F
Showers and
Patchy Fog
Thursday
High: 71 °F
Showers and
Patchy Fog
then Chance
T-storms
Thursday Night
Low: 59 °F
Chance
T-storms then
Chance
Showers and
Patchy Fog
Friday
High: 77 °F
Fog then
Chance
Showers
Friday Night
Low: 61 °F
Slight Chance
Showers then
Showers
Likely
Saturday
High: 70 °F
Showers then
Chance
Showers
Saturday Night
Low: 41 °F
Partly Cloudy
Sunday
High: 63 °F
Sunny

Detailed Forecast

Overnight

Showers and possibly a thunderstorm. Patchy fog. Steady temperature around 59. Calm wind becoming southeast around 6 mph. Chance of precipitation is 90%.

Thursday

Showers and thunderstorms before 3pm, then a slight chance of showers and thunderstorms after 4pm. Patchy fog before 10am. High near 71. Southeast wind 5 to 10 mph becoming west in the afternoon. Chance of precipitation is 90%.

Thursday Night

A chance of showers and thunderstorms before 3am, then a slight chance of showers between 3am and 4am. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 59. Light and variable wind becoming south 5 to 7 mph in the evening. Chance of precipitation is 30%.

Friday

A 30 percent chance of showers after noon. Widespread fog before 7am. Otherwise, partly sunny, with a high near 77. South wind 8 to 18 mph, with gusts as high as 26 mph.

Friday Night

A slight chance of showers, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 61. South wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

Saturday

Showers and possibly a thunderstorm. High near 70. South southwest wind 9 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 80%.

Saturday Night

Partly cloudy, with a low around 41. Northwest wind 5 to 8 mph becoming calm after midnight.

Sunday

Sunny, with a high near 63. Calm wind becoming west around 5 mph.

Sunday Night

Mostly clear, with a low around 47. South southwest wind 3 to 6 mph.

Monday

Sunny, with a high near 73. South southwest wind 6 to 13 mph, with gusts as high as 20 mph.

Monday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 60. South southwest wind around 10 mph, with gusts as high as 20 mph.

Tuesday

Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 76. South southwest wind 10 to 17 mph, with gusts as high as 25 mph.

Tuesday Night

Showers and possibly a thunderstorm. Mostly cloudy, with a low around 55. South southwest wind 15 to 17 mph, with gusts as high as 28 mph.

Wednesday

Showers. Mostly cloudy, with a high near 63. Southwest wind 15 to 17 mph becoming north northwest in the afternoon. Winds could gust as high as 26 mph.