Hourly Weather Forecast - Alton Bay, NH

5 AM
0°F
0%
5mph
WNW
Clear
Humidity
85%
Feels like
-11°F
Dew Point
-3°F
6 AM
0°F
0%
5mph
W
Clear
Humidity
85%
Feels like
-11°F
Dew Point
-3°F
7 AM
1°F
0%
5mph
W
Clear
Humidity
83%
Feels like
-9°F
Dew Point
-3°F
7:05 AM
8 AM
4°F
0%
5mph
W
Sunny
Humidity
76%
Feels like
-6°F
Dew Point
-2°F
9 AM
7°F
0%
4mph
W
Sunny
Humidity
68%
Feels like
-1°F
Dew Point
-1°F
10 AM
11°F
0%
4mph
W
Sunny
Humidity
61%
Feels like
3°F
Dew Point
0°F
11 AM
14°F
0%
4mph
W
Sunny
Humidity
55%
Feels like
6°F
Dew Point
1°F
12 PM
17°F
0%
5mph
WSW
Sunny
Humidity
50%
Feels like
9°F
Dew Point
1°F
1 PM
19°F
0%
5mph
WSW
Partly Cloudy
Humidity
47%
Feels like
11°F
Dew Point
2°F
2 PM
19°F
0%
4mph
SW
Mostly Cloudy
Humidity
47%
Feels like
13°F
Dew Point
2°F
3 PM
19°F
0%
4mph
SW
Mostly Cloudy
Humidity
48%
Feels like
14°F
Dew Point
3°F
4 PM
19°F
0%
4mph
SSW
Mostly Cloudy
Humidity
50%
Feels like
14°F
Dew Point
4°F
4:08 PM
5 PM
18°F
0%
4mph
S
Mostly Cloudy
Humidity
54%
Feels like
12°F
Dew Point
4°F
6 PM
17°F
0%
5mph
S
Cloudy
Humidity
57%
Feels like
10°F
Dew Point
4°F
7 PM
17°F
0%
5mph
S
Mostly Cloudy
Humidity
59%
Feels like
9°F
Dew Point
5°F
8 PM
17°F
10%
6mph
S
Mostly Cloudy
Humidity
59%
Feels like
8°F
Dew Point
5°F
9 PM
18°F
20%
6mph
SSW
Cloudy
Humidity
58%
Feels like
9°F
Dew Point
6°F
10 PM
18°F
30%
7mph
SSW
30 % Chance of Heavy Snow
Humidity
60%
Feels like
9°F
Dew Point
7°F
11 PM
19°F
30%
7mph
SSW
30% Chance of Snow
Humidity
66%
Feels like
10°F
Dew Point
10°F

Snow and ice forecast through Thursday A.M.

Snow Barrels Across the Northern U.S.

Low pressure will produce a swath of snow from Minnesota to Maine into Thursday.

Rainfall Forecast for Northwest through Thursday

Heavy, Flooding Rain Impacts the Northwest

Today's Weather Outlook

Today's Weather Outlook

Weekly Drought Map for December 4, 2025

Active Week of Weather Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

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Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide