National Weather Service

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Updates to the National Water Prediction Service (NWPS) Website June 15, 2026
Spring 2026 Frost/Freeze Program Begins for Downeast Maine on May 11th
How Much Snow Fell This Season, and How Did it Compare to Average?
Significant Drought Improvement in Eastern/Northern Maine, see the Latest Drought Information Statement

Current conditions at

Greenville (KGNR)

Lat: 45.46° N Lon: 69.55° W Elev: 1394 ft.

74°F

23°C

Humidity	54%
Wind Speed	Vrbl 6 mph
Barometer	29.92 in (1013.1 mb)
Dewpoint	56°F (13°C)
Visibility	NA
Last update	19 May 8:56 am EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Detailed forecast for

Southern Piscataquis

Today

Mostly sunny. Isolated showers this morning, then scattered showers with isolated thunderstorms this afternoon. Some thunderstorms may produce gusty winds and small hail this afternoon. Much warmer with highs in the mid 80s. Southwest winds 5 to 10 mph. Gusts up to 25 mph this afternoon. Chance of rain 50 percent.

Tonight

Partly cloudy. Scattered showers with a slight chance of thunderstorms in the evening. Some thunderstorms may produce gusty winds and small hail in the evening. Not as cool with lows in the mid 60s. Southwest winds 5 to 10 mph. Chance of rain 40 percent.

Wednesday

Mostly sunny. Highs in the mid 80s. West winds 15 to 20 mph with gusts up to 30 mph.

Wednesday Night

Partly cloudy. Much cooler with lows in the lower 40s. Northwest winds 10 to 15 mph with gusts up to 30 mph.

Thursday

Sunny. Much cooler with highs in the upper 50s. Northwest winds 10 to 15 mph with gusts up to 25 mph.

Thursday Night

Mostly clear. Lows in the upper 30s.

Friday

Sunny. Highs in the mid 60s.

Friday Night

Partly cloudy. Lows in the upper 30s.