National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

White Mountain Regional Airport (KIZG)

Lat: 43.99°NLon: 70.95°WElev: 449ft.

Mostly Cloudy

82°F

28°C

Humidity 58%
Wind Speed SE 6 mph
Barometer 29.92 in (1013.1 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 1 Aug 4:54 pm EDT
Extended Forecast for

Porterfield ME

  • This Afternoon

    This Afternoon: Isolated showers. Mostly cloudy, with a high near 85. South wind around 5 mph. Chance of precipitation is 20%.

    High: 85 °F

    Isolated
    Showers

  • Tonight

    Tonight: Mostly cloudy, with a low around 63. Calm wind.

    Low: 63 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 3pm. Cloudy, then gradually becoming mostly sunny, with a high near 84. Calm wind becoming south around 5 mph in the morning.

    High: 84 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Showers likely after 2am. Mostly cloudy, with a low around 64. South wind around 5 mph. Chance of precipitation is 70%.

    Low: 64 °F

    Mostly Cloudy
    then Showers
    Likely

  • Monday

    Monday: Showers, with thunderstorms also possible after 2pm. High near 78. Southeast wind around 5 mph becoming southwest in the afternoon. Chance of precipitation is 80%.

    High: 78 °F

    Showers

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 8pm. Partly cloudy, with a low around 60. Chance of precipitation is 60%.

    Low: 60 °F

    Showers
    Likely then
    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers after 5pm. Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

This Afternoon
Isolated showers. Mostly cloudy, with a high near 85. South wind around 5 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, with a low around 63. Calm wind.
Sunday
A 20 percent chance of showers and thunderstorms after 3pm. Cloudy, then gradually becoming mostly sunny, with a high near 84. Calm wind becoming south around 5 mph in the morning.
Sunday Night
Showers likely after 2am. Mostly cloudy, with a low around 64. South wind around 5 mph. Chance of precipitation is 70%.
Monday
Showers, with thunderstorms also possible after 2pm. High near 78. Southeast wind around 5 mph becoming southwest in the afternoon. Chance of precipitation is 80%.
Monday Night
Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 8pm. Partly cloudy, with a low around 60. Chance of precipitation is 60%.
Tuesday
Sunny, with a high near 83.
Tuesday Night
Partly cloudy, with a low around 60.
Wednesday
A 30 percent chance of showers after 5pm. Mostly sunny, with a high near 83.
Wednesday Night
A 30 percent chance of showers before 7pm. Partly cloudy, with a low around 63.
Thursday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
Thursday Night
A chance of thunderstorms. Partly cloudy, with a low around 66. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 85.
Friday Night
Partly cloudy, with a low around 64.
Saturday
Mostly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Porterfield ME
 43.88°N 70.91°W (Elev. 531 ft)
Last Update:
2:17 pm EDT Aug 1, 2026
Forecast Valid:
5pm EDT Aug 1, 2026-6pm EDT Aug 8, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation