National Weather Service Forecast for: Jefferson City MO
Issued by: National Weather Service Saint Louis, MO
Updated: 3:26 am CDT Aug 20, 2026
 
Today

Today: Patchy fog before 8am. Otherwise, partly sunny, with a high near 84. Calm wind becoming north around 6 mph in the afternoon.
Patchy Fog
then Mostly
Sunny
 Tonight

Tonight: Mostly clear, with a low around 65. Northeast wind around 5 mph becoming calm in the evening.
Mostly Clear

 Friday

Friday: Patchy fog before 9am. Otherwise, sunny, with a high near 90. Light and variable wind.
Patchy Fog
then Sunny
 Friday
Night
Friday Night: Mostly clear, with a low around 69. Calm wind.
Mostly Clear

 Saturday

Saturday: A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 87. Calm wind becoming north around 6 mph in the afternoon.
Slight Chance
Showers
 Saturday
Night
Saturday Night: Mostly clear, with a low around 65.
Mostly Clear

 Sunday

Sunday: Mostly sunny, with a high near 84.
Mostly Sunny

 Sunday
Night
Sunday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65.
Mostly Cloudy
then Chance
Showers
 Monday

Monday: A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 85.
Chance
T-storms
Hi 84 °F Lo 65 °F Hi 90 °F Lo 69 °F Hi 87 °F Lo 65 °F Hi 84 °F Lo 65 °F Hi 85 °F

 

Today
 
 Patchy fog before 8am. Otherwise, partly sunny, with a high near 84. Calm wind becoming north around 6 mph in the afternoon.
Tonight
 
 Mostly clear, with a low around 65. Northeast wind around 5 mph becoming calm in the evening.
Friday
 
 Patchy fog before 9am. Otherwise, sunny, with a high near 90. Light and variable wind.
Friday Night
 
 Mostly clear, with a low around 69. Calm wind.
Saturday
 
 A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 87. Calm wind becoming north around 6 mph in the afternoon.
Saturday Night
 
 Mostly clear, with a low around 65.
Sunday
 
 Mostly sunny, with a high near 84.
Sunday Night
 
 A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65.
Monday
 
 A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 85.
Monday Night
 
 Partly cloudy, with a low around 67.
Tuesday
 
 Mostly sunny, with a high near 90.
Tuesday Night
 
 A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Wednesday
 
 A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.

 

Forecast from NOAA-NWS for Jefferson City MO.