| NWS Forecast for: Union County Issued by: National Weather Service Jacksonville, FL Last Update: 1224 PM EST Sun Jan 11 2026 | |
| Tonight: Mostly cloudy. Much cooler with lows in the mid 30s. North winds around 10 mph. Monday: Partly sunny. Highs in the upper 50s. Northeast winds 5 to 10 mph. Monday Night: Mostly cloudy. Lows in the mid 30s. Northeast winds around 5 mph. Tuesday: Partly sunny. Highs in the mid 60s. North winds around 5 mph. Tuesday Night: Mostly cloudy. Lows in the mid 40s. Light and variable winds. Wednesday And Wednesday Night: Mostly cloudy with a 40 percent chance of showers. Highs around 60. Lows in the lower 40s. Thursday: Sunny. Highs in the mid 50s. Thursday Night: Mostly clear. Areas of frost after midnight. Much colder with lows in the mid 20s. Friday: Areas of frost in the morning. Sunny. Highs in the upper 50s. Friday Night: Mostly clear. Lows in the lower 30s. Saturday: Mostly sunny. Highs in the mid 60s. Saturday Night: Mostly cloudy. A slight chance of showers after midnight. Lows in the upper 30s. Chance of rain 20 percent. Sunday: Mostly sunny with a 20 percent chance of showers. Highs in the upper 50s. | |
| Zone Forecast: Union County | |
Visit your local NWS office at: https://www.weather.gov/jax |