Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Plattsmouth, Plattsmouth Municipal Airport (KPMV)

Lat: 40.95° N Lon: 95.92° W Elev: 1201 ft.

Fair

74°F

23°C

Humidity 89%
Wind Speed Calm
Barometer 29.93 in
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 18 Aug 10:15 pm CDT
Detailed forecast for

Cass County

Rest Of Tonight
Mostly cloudy with a slight chance of showers and thunderstorms. Lows in the upper 60s. East winds around 5 mph. Chance of rain 20 percent.
Wednesday
Patchy fog in the morning. Partly sunny with a chance of showers and thunderstorms. Humid with highs in the lower 80s. Northeast winds around 5 mph. Chance of rain 50 percent.
Wednesday Night
Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly cloudy after midnight. Humid with lows in the mid 60s. East winds around 5 mph. Chance of rain 20 percent.
Thursday
Mostly sunny. Humid with highs in the mid 80s. South winds around 5 mph.
Thursday Night
Mostly clear. A slight chance of showers and thunderstorms in the evening. Humid with lows in the upper 60s. South winds around 5 mph. Chance of rain 20 percent.
Friday
Sunny. A slight chance of showers and thunderstorms in the morning. Highs in the upper 80s. Chance of rain 20 percent.
Friday Night
Mostly clear. A chance of showers and thunderstorms after midnight. Lows in the upper 60s. Chance of rain 30 percent.
Saturday
Mostly sunny. Highs in the mid 80s.
Saturday Night
Mostly clear in the evening, then partly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the mid 60s. Chance of rain 20 percent.
Sunday
Mostly cloudy in the morning, then becoming partly sunny. A slight chance of thunderstorms. A chance of showers, mainly in the morning. Highs in the lower 80s. Chance of rain 30 percent.
Sunday Night
Partly cloudy with a slight chance of showers and thunderstorms. Lows in the mid 60s. Chance of rain 20 percent.
Monday
Mostly sunny. Highs in the mid 80s.
Monday Night
Partly cloudy. Lows in the upper 60s.
Tuesday
Partly sunny. Highs in the mid 80s.



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813 PM CDT Tue Aug 18 2026
 
 

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