Areas of Severe Thunderstorms and Excessive Rainfall; Heat Wave Builds in the Intermountain West and Plains

A slow moving front will bring rounds of strong to severe thunderstorms and heavy rainfall to the central Plains eastward to the east-central U.S.. The first widespread significant heat wave of summer for the Intermountain West and Plains is expected to develop today and expand through next week. Dangerous heat will continue to impact portions of the Southwest and Southeast. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Effingham, Effingham County Memorial Airport (K1H2)

Lat: 39.07°NLon: 88.53°WElev: 587ft.

Overcast

83°F

28°C

Humidity	80%
Wind Speed	SE 10 mph
Barometer	29.94 in
Dewpoint	76°F (24°C)
Visibility	10.00 mi
Heat Index	91°F (33°C)
Last update	10 Jul 1:15 pm CDT

More Information:

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

Extended Forecast for

4 Miles SSE Altamont IL

This Afternoon
High: 86 °F
Slight Chance
T-storms
Tonight
Low: 69 °F
Chance
T-storms then
T-storms
Likely
Saturday
High: 83 °F
Chance
T-storms then
Showers
Likely
Saturday Night
Low: 67 °F
Chance
Showers
Sunday
High: 82 °F
Chance
Showers then
Chance
T-storms
Sunday Night
Low: 66 °F
Chance
T-storms then
Mostly Clear
Monday
High: 85 °F
Sunny
Monday Night
Low: 67 °F
Mostly Clear
Tuesday
High: 87 °F
Sunny

Detailed Forecast

This Afternoon

A 10 percent chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 86. Light south southwest wind.

Tonight

Showers and thunderstorms likely, mainly between 3am and 4am. Mostly cloudy, with a low around 69. Light and variable wind. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

Saturday

A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 83. Light and variable wind. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

Saturday Night

A 40 percent chance of showers before 4am. Mostly cloudy, with a low around 67. Light east northeast wind.

Sunday

A chance of showers between 7am and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 82. East northeast wind 5 to 9 mph. Chance of precipitation is 40%.

Sunday Night

A chance of thunderstorms before 7pm. Mostly clear, with a low around 66. Northeast wind 3 to 6 mph. Chance of precipitation is 30%.

Monday

Sunny, with a high near 85. East northeast wind 6 to 9 mph.

Monday Night

Mostly clear, with a low around 67.

Tuesday

Sunny, with a high near 87.

Tuesday Night

Mostly clear, with a low around 68.

Wednesday

Sunny, with a high near 88.