| NWS Forecast for: Sullivan County Issued by: National Weather Service Gray/Portland, ME Last Update: 801 AM EDT Thu Jun 18 2026 | |
| Today: Patchy fog this morning. Showers. A slight chance of thunderstorms this morning, then scattered thunderstorms this afternoon. Some thunderstorms may be severe with damaging winds this afternoon. Highs in the lower 70s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain near 100 percent. Tonight: Mostly clear with a chance of showers with isolated thunderstorms in the evening, then partly cloudy after midnight. Some thunderstorms may be severe with damaging winds. Lows in the mid 50s. Southwest winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 50 percent. Juneteenth: Partly sunny. Highs in the mid 70s. West winds 10 to 15 mph with gusts up to 30 mph. Friday Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 50s. West winds 10 to 15 mph with gusts up to 30 mph. Saturday: Partly sunny. A chance of showers in the afternoon. Highs in the lower 70s. West winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 50 percent. Saturday Night: Partly cloudy. A chance of showers in the evening. Lows in the lower 50s. Chance of rain 50 percent. Sunday: Partly sunny with a chance of showers. Highs in the lower 70s. Chance of rain 50 percent. Sunday Night: Partly cloudy. A chance of showers in the evening. Lows in the lower 50s. Chance of rain 40 percent. Monday: Partly sunny with a chance of showers in the morning, then showers likely in the afternoon. Highs in the upper 60s. Chance of rain 60 percent. Monday Night: Showers likely in the evening, then partly cloudy with a chance of showers after midnight. Lows in the mid 50s. Chance of rain 60 percent. Tuesday: Partly sunny with a 30 percent chance of showers. Highs in the mid 70s. Tuesday Night: Partly cloudy in the evening, then clearing. Lows in the mid 50s. Wednesday: Mostly sunny. Highs in the upper 70s. | |
| Zone Forecast: Sullivan County | |
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