| NWS Forecast for: Sullivan County Issued by: National Weather Service Gray/Portland, ME Last Update: 633 AM EDT Mon Aug 17 2026 | |
| Today: Mostly cloudy. A chance of showers this morning, then a slight chance of showers and thunderstorms this afternoon. Highs in the mid 70s. Light and variable winds. Chance of rain 50 percent. Tonight: Partly cloudy with a chance of showers with a slight chance of thunderstorms in the evening, then mostly cloudy with a slight chance of showers after midnight. Patchy fog. Humid with lows in the lower 60s. Light and variable winds. Chance of rain 50 percent. Tuesday: Partly sunny. Patchy fog in the morning. A chance of showers in the afternoon. Humid with highs in the upper 70s. Light and variable winds. Chance of rain 30 percent. Tuesday Night: Partly cloudy. Lows in the upper 50s. Light and variable winds. Wednesday: Partly sunny. Highs in the lower 80s. Light and variable winds. Wednesday Night: Partly cloudy. Lows in the upper 50s. Thursday: Partly sunny. Highs in the upper 70s. Thursday Night: Mostly clear. Lows in the mid 50s. Friday: Mostly sunny. Highs in the upper 70s. Friday Night: Partly cloudy. Lows in the mid 50s. Saturday: Partly sunny. Highs in the upper 70s. Saturday Night: Partly cloudy with a 30 percent chance of showers. Lows in the upper 50s. Sunday: Partly sunny with a chance of showers in the morning, then showers likely in the afternoon. Highs in the mid 70s. Chance of rain 60 percent. | |
| Zone Forecast: Sullivan County | |
Visit your local NWS office at: https://www.weather.gov/gyx/ |