| NWS Forecast for: Derry NH Issued by: National Weather Service Gray/Portland, ME Last Update: 1:48 pm EDT Jul 15, 2025 |  |
This Afternoon: Isolated showers after 5pm. Widespread haze after 5pm. Mostly sunny and hot, with a high near 32. Calm wind. Chance of precipitation is 20%. Tonight: Widespread haze between 9pm and 10pm. Patchy fog after midnight. Otherwise, mostly clear, with a low around 19. Calm wind. Wednesday: Widespread haze. Sunny and hot, with a high near 33. Heat index values as high as 36. Calm wind becoming southwest 5 to 10 km/h in the afternoon. Wednesday Night: Patchy fog before 4am, then patchy fog after 5am. Otherwise, increasing clouds, with a low around 22. Southwest wind 5 to 10 km/h. Thursday: Showers likely, with thunderstorms also possible after 2pm. Patchy fog before 7am. Otherwise, partly sunny, with a high near 31. Southwest wind around 10 km/h. Chance of precipitation is 60%. Thursday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 9pm. Partly cloudy, with a low around 22. Chance of precipitation is 30%. Friday: Mostly sunny, with a high near 28. Friday Night: Mostly clear, with a low around 15. Saturday: Mostly sunny, with a high near 28. Saturday Night: Partly cloudy, with a low around 17. Sunday: A 30 percent chance of showers. Partly sunny, with a high near 27. Sunday Night: A 30 percent chance of showers. Partly cloudy, with a low around 17. Monday: Mostly sunny, with a high near 27. Monday Night: Mostly clear, with a low around 15. Tuesday: Mostly sunny, with a high near 26. | |
| Derry NH 42.92°N 71.3°W (Elev. 397 m) | |
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