Widespread Showers in the Eastern US; Severe Thunderstorms in the Plains; Heatwave in the Desert Southwest

Widespread showers and thunderstorms across much of the central and eastern U.S. will produce areas of excessive rainfall, especially in the southern Mid-Atlantic states. Scattered severe thunderstorms are expected from Montana into portions of the central/southern Plains this weekend. A heatwave will build in the Desert Southwest, in parts of Arizona, southeastern California, and southern Nevada. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Overcast

72°F

22°C

Humidity	94%
Wind Speed	NE 6 mph
Barometer	29.91 in (1012.3 mb)
Dewpoint	70°F (21°C)
Visibility	10.00 mi
Last update	13 Jun 11:54 pm CDT

More Information:

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

Extended Forecast for

Harristown IL

Overnight
Low: 68 °F
Showers
Likely
Saturday
High: 80 °F
Slight Chance
T-storms
Saturday Night
Low: 63 °F
Partly Cloudy
Sunday
High: 82 °F
Partly Sunny
Sunday Night
Low: 66 °F
Partly Cloudy
Monday
High: 85 °F
Partly Sunny
then Chance
T-storms
Monday Night
Low: 68 °F
Mostly Cloudy
Tuesday
High: 86 °F
Partly Sunny
then Chance
T-storms
Tuesday Night
Low: 71 °F
Chance
T-storms

Detailed Forecast

Overnight

Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 68. Northeast wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday

A 20 percent chance of showers and thunderstorms, mainly between noon and 2pm. Mostly cloudy, with a high near 80. North northeast wind 6 to 9 mph.

Saturday Night

Partly cloudy, with a low around 63. Northeast wind 5 to 9 mph.

Sunday

Partly sunny, with a high near 82. Northeast wind around 7 mph.

Sunday Night

Partly cloudy, with a low around 66. East southeast wind 3 to 5 mph.

Monday

A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 85. Light and variable wind becoming southeast around 5 mph in the morning.

Monday Night

Mostly cloudy, with a low around 68. South wind around 6 mph.

Tuesday

A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86.

Tuesday Night

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.

Wednesday

Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 86. Chance of precipitation is 70%.

Wednesday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 69.

Juneteenth

A chance of showers. Mostly sunny, with a high near 82.