| NWS Forecast for: Macoupin County Issued by: National Weather Service Saint Louis, MO Last Update: 903 PM CDT Mon May 25 2026 |  |
Tonight: Mostly cloudy. Lows in the mid 50s. East winds 5 to 10 mph. Tuesday: Partly sunny in the morning, then becoming mostly cloudy. Highs around 80. East winds around 5 mph. Tuesday Night: Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers after midnight. Lows in the lower 60s. Southeast winds around 5 mph. Chance of rain 30 percent. Wednesday: Partly sunny. A chance of showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the lower 80s. East winds around 5 mph. Chance of rain 60 percent. Wednesday Night: Partly cloudy. Lows around 60. East winds around 5 mph. Thursday And Thursday Night: Mostly cloudy. Highs in the lower 80s. Lows around 60. Friday And Friday Night: Mostly cloudy. A 20 percent chance of showers. Highs in the upper 70s. Lows in the upper 50s. Saturday: Partly sunny. Highs in the mid 70s. Saturday Night: Partly cloudy. Lows in the mid 50s. Sunday: Sunny. Highs in the upper 70s. Sunday Night: Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 50s. Monday: Sunny. Highs in the upper 70s. | |
| Zone Forecast: Macoupin County | |
Visit your local NWS office at: https://www.weather.gov/lsx/ |