| National Weather Service Forecast for:
2 Miles NNE O'Fallon MO Issued by: National Weather Service Saint Louis, MO |
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| Updated: 12:26 am CST Dec 5, 2025 | ||||||||||||||||||
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| Overnight |
Mostly clear, with a low around 9. Light southeast wind. |
| Friday |
Sunny, with a high near 42. South wind 3 to 6 mph. |
| Friday Night |
Mostly cloudy, with a low around 28. South wind around 7 mph becoming west after midnight. |
| Saturday |
Partly sunny, with a high near 37. Calm wind becoming east around 5 mph in the afternoon. |
| Saturday Night |
A chance of snow between midnight and 3am, then a chance of rain after 3am. Mostly cloudy, with a low around 29. Southeast wind around 6 mph. Chance of precipitation is 40%. |
| Sunday |
A chance of rain before 9am, then a chance of snow. Mostly cloudy, with a high near 37. Chance of precipitation is 30%. |
| Sunday Night |
Mostly cloudy, with a low around 13. |
| Monday |
Mostly sunny, with a high near 32. |
| Monday Night |
Partly cloudy, with a low around 23. |
| Tuesday |
Mostly sunny, with a high near 46. |
| Tuesday Night |
Mostly cloudy, with a low around 36. |
| Wednesday |
A 30 percent chance of rain. Mostly cloudy, with a high near 45. |
| Wednesday Night |
Mostly cloudy, with a low around 21. |
| Thursday |
Mostly cloudy, with a high near 34. |
Forecast from NOAA-NWS for 2 Miles NNE O'Fallon MO.
