Weather in Merrimack, New Hampshire, United States

7-Day Detailed Weather Forecast for Merrimack

Tonight

Temperature: 68°F

Wind Speed: 0 to 5 mph

Wind Direction: S

Forecast: A slight chance of rain showers between 1am and 2am. Mostly cloudy, with a low around 68. South wind 0 to 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

Sunday

Temperature: 95°F

Wind Speed: 5 to 10 mph

Wind Direction: W

Forecast: Rain showers likely before 8am, then showers and thunderstorms likely between 8am and noon. Mostly sunny, with a high near 95. Heat index values as high as 103. West wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.

Sunday Night

Temperature: 71°F

Wind Speed: 0 to 10 mph

Wind Direction: NW

Forecast: Partly cloudy, with a low around 71. Heat index values as high as 101. Northwest wind 0 to 10 mph.

Monday

Temperature: 97°F

Wind Speed: 0 to 5 mph

Wind Direction: SW

Forecast: Mostly sunny, with a high near 97. Heat index values as high as 105. Southwest wind 0 to 5 mph.

Monday Night

Temperature: 74°F

Wind Speed: 0 to 5 mph

Wind Direction: SW

Forecast: Mostly clear, with a low around 74. Southwest wind 0 to 5 mph.

Tuesday

Temperature: 100°F

Wind Speed: 0 to 10 mph

Wind Direction: W

Forecast: Sunny, with a high near 100.

Tuesday Night

Temperature: 74°F

Wind Speed: 0 to 5 mph

Wind Direction: NW

Forecast: Mostly clear, with a low around 74.

Wednesday

Temperature: 90°F

Wind Speed: 0 to 5 mph

Wind Direction: NE

Forecast: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90.

Wednesday Night

Temperature: 62°F

Wind Speed: 0 to 5 mph

Wind Direction: E

Forecast: A slight chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.

Thursday

Temperature: 75°F

Wind Speed: 0 to 5 mph

Wind Direction: E

Forecast: A chance of rain showers. Partly sunny, with a high near 75. Chance of precipitation is 40%.

Thursday Night

Temperature: 60°F

Wind Speed: 0 to 5 mph

Wind Direction: SE

Forecast: A chance of rain showers. Mostly cloudy, with a low around 60. Chance of precipitation is 50%.

Friday

Temperature: 72°F

Wind Speed: 0 to 5 mph

Wind Direction: SE

Forecast: A chance of rain showers. Mostly cloudy, with a high near 72. Chance of precipitation is 50%.

Friday Night

Temperature: 58°F

Wind Speed: 0 to 5 mph

Wind Direction: SE

Forecast: A chance of rain showers. Mostly cloudy, with a low around 58. Chance of precipitation is 50%.

Saturday

Temperature: 73°F

Wind Speed: 0 to 5 mph

Wind Direction: SE

Forecast: A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 73.