| NWS Forecast for: Macoupin County Issued by: National Weather Service Saint Louis, MO Last Update: 342 AM CDT Fri Mar 13 2026 | |
Today: Mostly sunny and breezy. Highs in the mid 50s. West winds 15 to 25 mph with gusts up to 35 mph. Tonight: Partly cloudy in the evening, then clearing. Lows in the mid 30s. Northwest winds 5 to 10 mph with gusts up to 25 mph, becoming northeast after midnight. Saturday: Partly sunny. Highs in the lower 60s. Southeast winds 10 to 15 mph. Saturday Night: Mostly cloudy. Not as cool with lows in the lower 50s. Southeast winds 10 to 15 mph with gusts up to 25 mph. Sunday: A slight chance of thunderstorms. Rain, breezy with highs in the upper 60s. South winds 15 to 25 mph with gusts up to 40 mph. Chance of rain 90 percent. Sunday Night: Rain, snow with a chance of thunderstorms in the evening, then snow likely after midnight. Light snow accumulation. Windy and much cooler with lows around 20. Chance of precipitation 90 percent. Wind chill values as low as 5 above after midnight. Monday: Mostly cloudy with a chance of snow in the morning, then partly sunny in the afternoon. Windy and much cooler with highs in the mid 20s. Chance of snow 40 percent. Wind chill values as low as zero. Monday Night: Partly cloudy in the evening, then becoming mostly clear. Cooler with lows around 10 above. Wind chill values as low as 5 below. Tuesday: Mostly sunny. Highs in the lower 30s. Wind chill values as low as 5 below in the morning. Tuesday Night: Mostly cloudy with a slight chance of snow. A slight chance of rain after midnight. Not as cool with lows in the mid 20s. Chance of precipitation 20 percent. Wednesday And Wednesday Night: Mostly cloudy. Highs in the upper 50s. Lows in the upper 30s. Thursday: Sunny. Highs in the upper 60s. | |
| Zone Forecast: Macoupin County | |
Visit your local NWS office at: https://www.weather.gov/lsx/ |