I-89 weather conditions near Grantham, New Hampshire
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Fair 45°F 2025-10-19T08:53:00-04:00 - Today 2025-10-19, Mostly Sunny. Mostly sunny, with a high near 69. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight 2025-10-19, Mostly Cloudy then Chance Showers and Patchy Fog. A 30 percent chance of showers, mainly after 4am. Patchy fog after 3am. Otherwise, increasing clouds, with a low around 51. Southeast wind around 10 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday 2025-10-20, Showers. A chance of showers and thunderstorms, then rain and possibly a thunderstorm after 7am. High near 61. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Monday Night 2025-10-20, Rain Likely. Rain likely before 9pm, then showers likely, mainly between 9pm and 3am. Mostly cloudy, with a low around 44. Southwest wind 5 to 10 mph. Chance of precipitation is 70%.Tuesday 2025-10-21, Chance Showers then Mostly Sunny. A 30 percent chance of showers before 9am. Mostly sunny, with a high near 61. West wind around 5 mph.
Tuesday Night 2025-10-21, Partly Cloudy then Showers Likely. Showers likely, mainly after 5am. Mostly cloudy, with a low around 44. Chance of precipitation is 60%.
Wednesday 2025-10-22, Showers. Showers. High near 60. Chance of precipitation is 80%.Wednesday Night 2025-10-22, Showers Likely then Partly Cloudy. Showers likely, mainly before 7pm. Partly cloudy, with a low around 37. Chance of precipitation is 60%.
Thursday 2025-10-23, Partly Sunny. Partly sunny, with a high near 54.
Thursday Night 2025-10-23, Partly Cloudy. Partly cloudy, with a low around 35.- Friday 2025-10-24, Mostly Sunny. Mostly sunny, with a high near 53.
- Friday Night 2025-10-24, Partly Cloudy. Partly cloudy, with a low around 33.
- Saturday 2025-10-25, Mostly Sunny. Mostly sunny, with a high near 52.