National Weather Service Forecast for: 2 Miles NNE O'Fallon MO
Issued by: National Weather Service Saint Louis, MO
Updated: 10:36 am CST Nov 1, 2026
 
This
Afternoon
This Afternoon: Cloudy, with a high near 65. Southeast wind 7 to 9 mph.
Cloudy

 Tonight

Tonight: Patchy fog between 11pm and 4am. Otherwise, cloudy, with a low around 55. Southeast wind around 7 mph.
Patchy Fog

 Monday

Monday: Cloudy, with a high near 71. South wind 7 to 14 mph, with gusts as high as 24 mph.
Cloudy

 Monday
Night
Monday Night: A 30 percent chance of rain after 1am. Cloudy, with a low around 63. South wind 13 to 16 mph, with gusts as high as 25 mph.
Cloudy then
Chance Rain
 Tuesday

Tuesday: Rain and possibly a thunderstorm before 9am, then rain between 9am and noon, then rain and possibly a thunderstorm after noon. High near 73. South wind 10 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 90%.
Rain

 Tuesday
Night
Tuesday Night: Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 52. Chance of precipitation is 60%.
Rain Likely

 Wednesday

Wednesday: A 30 percent chance of rain, mainly before noon. Partly sunny, with a high near 67.
Chance Rain

 Wednesday
Night
Wednesday Night: A 20 percent chance of rain before midnight. Partly cloudy, with a low around 46.
Slight Chance
Rain then
Partly Cloudy
 Thursday

Thursday: Partly sunny, with a high near 66.
Partly Sunny
Hi 65 °F Lo 55 °F Hi 71 °F Lo 63 °F Hi 73 °F Lo 52 °F Hi 67 °F Lo 46 °F Hi 66 °F

 

This Afternoon
 
 Cloudy, with a high near 65. Southeast wind 7 to 9 mph.
Tonight
 
 Patchy fog between 11pm and 4am. Otherwise, cloudy, with a low around 55. Southeast wind around 7 mph.
Monday
 
 Cloudy, with a high near 71. South wind 7 to 14 mph, with gusts as high as 24 mph.
Monday Night
 
 A 30 percent chance of rain after 1am. Cloudy, with a low around 63. South wind 13 to 16 mph, with gusts as high as 25 mph.
Tuesday
 
 Rain and possibly a thunderstorm before 9am, then rain between 9am and noon, then rain and possibly a thunderstorm after noon. High near 73. South wind 10 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 90%.
Tuesday Night
 
 Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 52. Chance of precipitation is 60%.
Wednesday
 
 A 30 percent chance of rain, mainly before noon. Partly sunny, with a high near 67.
Wednesday Night
 
 A 20 percent chance of rain before midnight. Partly cloudy, with a low around 46.
Thursday
 
 Partly sunny, with a high near 66.
Thursday Night
 
 A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 46.
Friday
 
 Partly sunny, with a high near 65.
Friday Night
 
 Mostly cloudy, with a low around 43.
Saturday
 
 Mostly sunny, with a high near 66.

 

Forecast from NOAA-NWS for 2 Miles NNE O'Fallon MO.