| NWS Forecast for: Washington County Issued by: National Weather Service Saint Louis, MO Last Update: 423 AM CST Sun Feb 15 2026 |  |
| Today: Cloudy this morning, then becoming mostly sunny. Highs in the upper 50s. North winds 5 to 10 mph with gusts up to 20 mph. Tonight: Mostly clear. Patchy fog after midnight. Lows in the mid 30s. Light and variable winds, becoming southwest around 5 mph after midnight. Washingtons Birthday: Patchy fog in the morning. Mostly sunny. Highs in the mid 60s. South winds 5 to 10 mph with gusts up to 20 mph. Monday Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 40s. South winds around 5 mph with gusts up to 20 mph. Tuesday: Mostly cloudy. Highs in the upper 60s. South winds 10 to 15 mph with gusts up to 30 mph. Tuesday Night: Mostly cloudy in the evening, then partly cloudy with a slight chance of showers after midnight. Not as cool with lows in the upper 50s. Chance of rain 20 percent. Wednesday: Mostly sunny. Highs in the lower 70s. Wednesday Night: Partly cloudy in the evening, then becoming mostly clear. Cooler with lows in the mid 40s. Thursday And Thursday Night: Mostly clear. A 20 percent chance of rain showers. Highs in the lower 70s. Lows in the upper 30s. Friday And Friday Night: Partly cloudy. Highs in the lower 50s. Lows in the upper 20s. Saturday: Sunny. Highs in the lower 50s. | |
| Zone Forecast: Washington County | |
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