National Weather Service Forecast for: 3 Miles NNW Black Jack MO
Issued by: National Weather Service Saint Louis, MO
Updated: 1:20 am CDT Aug 20, 2026
 
Overnight

Overnight: Partly cloudy, with a low around 70. Light north wind.
Partly Cloudy

 Thursday

Thursday: Patchy fog between 7am and 8am. Otherwise, partly sunny, with a high near 83. North wind 3 to 7 mph.
Patchy Fog
then Mostly
Sunny
 Thursday
Night
Thursday Night: Patchy fog after 5am. Otherwise, mostly clear, with a low around 67. Northeast wind around 6 mph becoming calm in the evening.
Mostly Clear
then Patchy
Fog
 Friday

Friday: Patchy fog before 8am. Otherwise, sunny, with a high near 87. Calm wind becoming west around 5 mph in the afternoon.
Patchy Fog
then Sunny

 Friday
Night
Friday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 69. Light southwest wind.
Mostly Clear
then Slight
Chance
T-storms
 Saturday

Saturday: Sunny, with a high near 86.
Sunny

 Saturday
Night
Saturday Night: Mostly clear, with a low around 67.
Mostly Clear

 Sunday

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

 Sunday
Night
Sunday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 66.
Slight Chance
Showers
Lo 70 °F Hi 83 °F Lo 67 °F Hi 87 °F Lo 69 °F Hi 86 °F Lo 67 °F Hi 84 °F Lo 66 °F

 

Overnight
 
 Partly cloudy, with a low around 70. Light north wind.
Thursday
 
 Patchy fog between 7am and 8am. Otherwise, partly sunny, with a high near 83. North wind 3 to 7 mph.
Thursday Night
 
 Patchy fog after 5am. Otherwise, mostly clear, with a low around 67. Northeast wind around 6 mph becoming calm in the evening.
Friday
 
 Patchy fog before 8am. Otherwise, sunny, with a high near 87. Calm wind becoming west around 5 mph in the afternoon.
Friday Night
 
 A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 69. Light southwest wind.
Saturday
 
 Sunny, with a high near 86.
Saturday Night
 
 Mostly clear, with a low around 67.
Sunday
 
 Mostly sunny, with a high near 84.
Sunday Night
 
 A 20 percent chance of showers. Mostly cloudy, with a low around 66.
Monday
 
 Partly sunny, with a high near 84.
Monday Night
 
 Partly cloudy, with a low around 68.
Tuesday
 
 Mostly sunny, with a high near 88.
Tuesday Night
 
 Partly cloudy, with a low around 70.
Wednesday
 
 Mostly sunny, with a high near 89.

 

Forecast from NOAA-NWS for 3 Miles NNW Black Jack MO.