Geek Weather

Interactive weather forecasts, historical data graphs, and multi-city comparisons. Zoom from yearly overview to hourly detail.

This application requires JavaScript to display interactive weather graphs and maps. Please enable JavaScript in your browser settings for the full experience.

Browse all locations — view weather forecasts and historical data for cities worldwide.

About Grantham, NH

Grantham, in New Hampshire, United States, is home to roughly 2,300 people in the Eastern Time Zone at 43.5°N latitude.

View historical weather for Grantham · More cities in New Hampshire