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As of 17:39 EDT

Weather in Alton Bay, NH

84°Current weather

Alton Bay, Sunday, 9 August, 17:39

Clear. Feels like 86°. High 85°, low 66°.

Pressure29.88 inHg
Wind8.7 mph W
Humidity53%
Visibility6.2 mi
Dew point65°

10-day forecast for Alton Bay, NH: 48° to 88°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.

85°
Best day: Sunday, August 9
72° · 2.58 in
Worst day: Sunday, August 16

Tap any day below to see morning, afternoon, evening and overnight.

Mon, 1088° / 63°0.04Light rain
MorningMostly clear72°feels 72°
AfternoonOvercast85°feels 84°
EveningLight rain73°feels 74°
OvernightMostly clear66°feels 66°
88 °Light rain

Alton Bay, Monday, 10 August

Light rain. High 88°, low 63°.

Pressure29.94 inHg
Wind7.5 mph SW
Humidity39%
Visibility6.2 mi
Dew point55°
Tue, 1182° / 61°0Partly cloudy
MorningPartly cloudy72°feels 72°
AfternoonPartly cloudy82°feels 80°
EveningPartly cloudy66°feels 65°
OvernightOvercast67°feels 68°
82 °Partly cloudy

Alton Bay, Tuesday, 11 August

Partly cloudy. High 82°, low 61°.

Pressure29.77 inHg
Wind12.4 mph NW
Humidity41%
Visibility6.2 mi
Dew point54°
Wed, 1278° / 59°0Overcast
MorningOvercast66°feels 65°
AfternoonOvercast71°feels 71°
EveningOvercast66°feels 66°
OvernightPartly cloudy59°feels 58°
78 °Overcast

Alton Bay, Wednesday, 12 August

Overcast. High 78°, low 59°.

Pressure29.80 inHg
Wind3.2 mph W
Humidity67%
Visibility6.2 mi
Dew point57°
Thu, 1378° / 57°0.01Light rain
MorningPartly cloudy65°feels 65°
AfternoonMostly clear78°feels 78°
EveningLight rain73°feels 72°
OvernightOvercast58°feels 58°
78 °Light rain

Alton Bay, Thursday, 13 August

Light rain. High 78°, low 57°.

Pressure29.74 inHg
Wind13.4 mph NW
Humidity44%
Visibility6.2 mi
Dew point53°
Fri, 1472° / 52°0Clear
MorningClear57°feels 55°
AfternoonClear69°feels 67°
EveningClear68°feels 67°
OvernightClear53°feels 51°
72 °Clear

Alton Bay, Friday, 14 August

Clear. High 72°, low 52°.

Pressure30.00 inHg
Wind12.8 mph NW
Humidity38%
Visibility—
Dew point39°
Sat, 1575° / 48°0Partly cloudy
MorningPartly cloudy54°feels 53°
AfternoonPartly cloudy71°feels 69°
EveningPartly cloudy71°feels 70°
OvernightPartly cloudy55°feels 53°
75 °Partly cloudy

Alton Bay, Saturday, 15 August

Partly cloudy. High 75°, low 48°.

Pressure30.18 inHg
Wind6.6 mph NW
Humidity41%
Visibility—
Dew point42°
Sun, 1672° / 54°2.58Heavy rain
MorningHeavy rain59°feels 58°
AfternoonHeavy rain71°feels 70°
EveningHeavy rain65°feels 66°
OvernightHeavy rain65°feels 66°
72 °Heavy rain

Alton Bay, Sunday, 16 August

Heavy rain. High 72°, low 54°.

Pressure29.97 inHg
Wind15.3 mph S
Humidity49%
Visibility—
Dew point49°
Mon, 1770° / 57°0.03Light rain
MorningLight rain59°feels 59°
AfternoonLight rain62°feels 62°
EveningLight rain68°feels 67°
OvernightLight rain57°feels 57°
70 °Light rain

Alton Bay, Monday, 17 August

Light rain. High 70°, low 57°.

Pressure29.83 inHg
Wind11 mph NW
Humidity88%
Visibility—
Dew point57°
Tue, 1880° / 54°0Partly cloudy
MorningPartly cloudy60°feels 60°
AfternoonPartly cloudy75°feels 74°
EveningPartly cloudy76°feels 76°
OvernightPartly cloudy60°feels 59°
80 °Partly cloudy

Alton Bay, Tuesday, 18 August

Partly cloudy. High 80°, low 54°.

Pressure30.06 inHg
Wind7.3 mph NW
Humidity50%
Visibility—
Dew point51°

About this forecast

How reliable is a 10-day forecast?

The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.

What does the time-of-day table show?

Temperature in Alton Bay, NH around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.

How is the best day chosen?

We weigh the daytime high against precipitation: a warm, dry day scores highest.