Granite State Marathon

Nashua, NH, USA • May 9. 2026

Race Day Weather

partly-cloudy-day
46°
65° high
Breezy
Dry

Cool conditions, steady winds

Runners will face a temperature rise from 46°F at the start to 64°F by the finish, with a gentle wind from the SW at 10 mph. Humidity will be moderate at 59% with a dew point of 40°F. Runners should maintain a steady pace, as conditions are favorable for a strong performance.

Race day forecast available in 32 days
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Area Map

Course Map

Course Map Unavailable

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When is the 2026 Granite State Marathon?

The 2026 Granite State Marathon will be held on Saturday May 9, 2026.

Is the Granite State Marathon a Boston Marathon Qualifier?

Yes, the Granite State Marathon is an official Boston Marathon qualifier.

What will the weather be like for the 2026 Granite State Marathon?

The forecast calls for a high of 65°F and a low of 46°F with a 0% chance of rain.

Historical Weather

Based on 2 years of data
Avg Temp
56°F
L:43° H:56°
RunScore
8
Conditions
Rain Freq
50%
1 of 2 yrs
Wind10mph
Dew45°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore

2025 Granite State Marathon

Partly cloudy throughout the day with a chance of rain throughout the day.

2025
rain
47°/54°Light
9

2024 Granite State Marathon

Partly cloudy throughout the day.

2024
clear-day
39°/59°-
8

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2026-04-04 · Derry, NH, USA
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