| NWS Forecast for: Washington County Issued by: National Weather Service Saint Louis, MO Last Update: 1034 PM CST Tue Dec 30 2025 | |
| Overnight: Mostly clear and not as cool. Near steady temperature in the upper 20s. West winds 5 to 10 mph with gusts up to 20 mph. Wednesday: Mostly sunny. Highs in the mid 40s. West winds 5 to 10 mph. Wednesday Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 20s. West winds around 5 mph, becoming north around 5 mph after midnight. New Years Day: Mostly cloudy in the morning, then becoming partly sunny. Highs in the lower 40s. East winds around 5 mph. Thursday Night: Mostly cloudy. Lows in the lower 30s. Southeast winds around 5 mph. Friday And Friday Night: Mostly cloudy. Highs in the mid 40s. Lows in the mid 20s. Saturday: Mostly sunny. Highs in the lower 40s. Saturday Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 20s. Sunday: Mostly sunny. Not as cool with highs in the lower 50s. Sunday Night: Mostly clear. Lows in the mid 30s. Monday Through Tuesday: Partly cloudy. Highs in the lower 50s. Lows in the lower 30s. | |
| Zone Forecast: Washington County | |
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