NWS Forecast for Cape Girardeau MO

National Weather Service Forecast for: Cape Girardeau MO
Issued by: National Weather Service Paducah, KY

Updated: 3:51 am CDT Aug 20, 2026

Overnight Slight Chance Showers	Thursday Decreasing Clouds	Thursday Night Mostly Clear	Friday Sunny	Friday Night Mostly Clear	Saturday Mostly Sunny then Slight Chance T-storms	Saturday Night Mostly Clear	Sunday Sunny	Sunday Night Partly Cloudy
Lo 69 °F	Hi 85 °F	Lo 68 °F	Hi 87 °F	Lo 68 °F	Hi 87 °F	Lo 66 °F	Hi 83 °F	Lo 64 °F

Hazardous Weather Outlook
Flood Watch

Overnight	A 20 percent chance of showers. Mostly cloudy, with a low around 69. Calm wind.
Thursday	Mostly cloudy, then gradually becoming sunny, with a high near 85. Calm wind becoming north around 5 mph in the afternoon.
Thursday Night	Mostly clear, with a low around 68. Light north northeast wind.
Friday	Sunny, with a high near 87. Calm wind.
Friday Night	Mostly clear, with a low around 68. Calm wind.
Saturday	A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. Calm wind becoming north northwest around 5 mph in the afternoon.
Saturday Night	Mostly clear, with a low around 66. Calm wind.
Sunday	Sunny, with a high near 83. Light north northeast wind.
Sunday Night	Partly cloudy, with a low around 64. Calm wind.
Monday	Mostly sunny, with a high near 83. Calm wind.
Monday Night	A chance of showers and thunderstorms. Partly cloudy, with a low around 64. Light east wind.
Tuesday	A slight chance of showers. Sunny, with a high near 87. Light southeast wind.
Tuesday Night	Partly cloudy, with a low around 67. Calm wind.
Wednesday	Mostly sunny, with a high near 89. Calm wind.

Forecast from NOAA-NWS for Cape Girardeau MO.