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May 18th, 2026 :: 6:03 pm EDT   

Local Weather Report for
Sandown
New Hampshire, United States

 Sandown Weather Forecast Summary  
 
Today
May 18th
Tuesday
May 19th
Wednesday
May 20th
Thursday
May 21st
Friday
May 22nd
Mix of Sun and Cloud Mostly Sunny Mostly Sunny Mostly Sunny Mostly Sunny
71°F
94°F
59°F
87°F
61°F
65°F
47°F
68°F
42°F
 
 Sandown Detailed Weather Forecast  
 
Monday, May 18th, 2026
Evening Temperature: 55°F
Mostly clear.
Tuesday, May 19th, 2026
Overnight Temperature: 60°F
Mostly clear.
Morning Temperature: 83°F
Mostly sunny. Slight chance of a thunderstorm. Windy at times.
Afternoon Temperature: 91°F
Mostly sunny. Chance of a thunderstorm. Windy at times.
Evening Temperature: 72°F
Mostly clear.
Wednesday, May 20th, 2026
Overnight Temperature: 69°F
Mostly clear.
Morning Temperature: 82°F
Sunny. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 82°F
Mostly sunny. Chance of a thunderstorm. Windy at times.
Evening Temperature: 66°F
Mostly clear. Windy at times.
Thursday, May 21st, 2026
Overnight Temperature: 54°F
A mix of cloudy and clear skies. Windy at times.
Morning Temperature: 55°F
A mix of cloud and sun. Windy at times.
Afternoon Temperature: 65°F
Sunny. Windy at times.
Evening Temperature: 50°F
Clear.
Friday, May 22nd, 2026
Overnight Temperature: 42°F
Mostly clear.
Morning Temperature: 57°F
Mostly sunny.
Afternoon Temperature: 68°F
Mostly sunny.
Evening Temperature: 52°F
Mostly clear.
Saturday, May 23rd, 2026
Overnight Temperature: 50°F
A mix of cloudy and clear skies.
Morning Temperature: 59°F
A mix of cloud and sun. Windy at times.
Afternoon Temperature: 60°F
A mix of cloud and sun.
Evening Temperature: 46°F
Clear with cloudy periods.
Sunday, May 24th, 2026
Overnight Temperature: 42°F
Mostly clear.
Morning Temperature: 56°F
Mostly sunny.
Afternoon Temperature: 60°F
Mostly sunny. Windy at times.
Evening Temperature: 46°F
Clear with cloudy periods.
Monday, May 25th, 2026
Overnight Temperature: 45°F
Mostly cloudy.
Morning Temperature: 55°F
A mix of cloud and sun.
Afternoon Temperature: 63°F
Sunny with cloudy periods. Windy at times.
Evening Temperature: 51°F
A mix of cloudy and clear skies.
Tuesday, May 26th, 2026
Overnight Temperature: 53°F
Cloudy with showers likely.
Morning Temperature: 55°F
Cloudy with a few showers.
Afternoon Temperature: 60°F
Cloudy with a few showers.
Evening Temperature: 60°F
Mostly cloudy with a chance of showers.





 

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This WeatherCity Weather Forecast for Sandown, New Hampshire, United States is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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