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Onshore winds will keep much of western Maine cooler on Monday, but very warm temperatures will continue into midweek with some 90F readings possible in southern NH on Tuesday. Thunderstorms, some potentially strong, are possible in the afternoons on Tuesday and Wednesday as two frontal boundaries near and cross the region from the north.
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Updated: @ 05/17/2026 18:20 - next update at 18:25  
Summary / Temperature Wind Rain Outlook
Clear Clear
Currently: 81.1, Max: 83.1, Min: 52.3 81.1°F
Warmer 0.3°F than last hour.

Warm

Feels like: 81°F

24-hr difference
4.1°FWarmer 4.1°F than yesterday at this time.
  Today Yesterday
High: 83.1°F
14:25
78.3°F
16:52
Low: 52.3°F
05:19
42.1°F
03:30
 Wind from NNE NNE
1
Gust:
3 mph
0 Bft - Calm
Today: 15 mph 14:39
Gust Month: 23 mph May 07
Rain Today: 0 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0 in
Storm Rain: 0 in
This Month: 3.62 in
Season Total: 9.1 in
8 rain days in May.
Monday

Monday: Mostly Sunny
Mostly Sunny
Humidity & Barometer Almanac Moon
Humidity: 40 % Decreased 5.0% since last hour.
Dew Point: 54.4°F Decreased 2.9°F since last hour.
Barometer: 29.844 inHg Rising 0.01  inHg/hr
Baro Trend: Steady
Sunrise: 05:20
Sunset: 20:06
Moonrise: 05:24
Moonset: 21:52
Waxing Crescent
Waxing Crescent, Moon at 2 days in cycle
2%
Illuminated
UV Index Solar Radiation
   0.0    None
High: 9.0 @ 11:21
34 W/m2 (17 %)
High: 977 @  12:41
 NWS Weather Forecast  - Outlook: Tonight & Monday
Tonight

Tonight: Partly Cloudy
Partly Cloudy

Lo 49 °F
NWS forecast: Partly cloudy, with a low around 49. Northwest wind 0 to 15 mph, with gusts as high as 25 mph. New rainfall amounts less than a tenth of an inch possible.
 
Monday

Monday: Mostly Sunny
Mostly Sunny

Hi 81 °F
NWS forecast: Mostly sunny, with a high near 81. Southeast wind 0 to 5 mph.