Current conditions at
Portland, Portland International Jetport (KPWM)
Lat: 43.64°NLon: 70.3°WElev: 72ft.
Overcast
69°F
21°C
| Humidity | 93% |
| Wind Speed | S 9 mph |
| Barometer | 29.91 in (1012.9 mb) |
| Dewpoint | 67°F (19°C) |
| Visibility | 10.00 mi |
| Last update | 2 Aug 11:51 pm EDT |
Extended Forecast for
Riverton ME
Overnight

Low: 66 °F
Showers and
Areas FogMonday
High: 80 °F
Showers and
Areas Fog
then Showers
Likely and
BreezyMonday Night
Low: 60 °F
Showers then
Mostly ClearTuesday

High: 87 °F
Sunny
Tuesday Night

Low: 60 °F
Mostly Clear
Wednesday

High: 85 °F
Mostly Sunny
Wednesday Night

Low: 63 °F
Partly Cloudy
Thursday

High: 89 °F
Mostly Sunny
Thursday Night

Low: 68 °F
Partly Cloudy
Detailed Forecast
Overnight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3am. Areas of fog. Low around 66. South wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. Areas of fog before 9am. High near 80. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Showers and possibly a thunderstorm before 8pm, then a slight chance of showers between 8pm and 9pm. Low around 60. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
Sunny, with a high near 87. West wind around 10 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 60. West wind around 5 mph becoming calm.
Wednesday
Mostly sunny, with a high near 85.
Wednesday Night
Partly cloudy, with a low around 63.
Thursday
Mostly sunny, with a high near 89.
Thursday Night
Partly cloudy, with a low around 68.
Friday
A 30 percent chance of showers after 4pm. Mostly sunny and hot, with a high near 90.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 68.
Saturday
Mostly sunny, with a high near 88.
Saturday Night
Partly cloudy, with a low around 67.
Sunday
Mostly sunny, with a high near 89.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Riverton ME
43.69°N 70.32°W (Elev. 75 ft)
43.69°N 70.32°W (Elev. 75 ft)
7:32 pm EDT Aug 2, 2026
12am EDT Aug 3, 2026-6pm EDT Aug 9, 2026


