Mount Washington Observatory (MWOBS)

Mount Washington Observatory is a non-profit institution working to advance understanding of the natural systems that create the Earth's weather and climate.

[Mount Washington Observatory (MWOBS) @MWObs]

Stay safe out there! For the full forecast details, visit https://t.co/nTW5QhHNSU

[Mount Washington Observatory (MWOBS) @MWObs]

The final forecast for today's Seek the Peak is published! Approaching low-pressure will bring scattered rain showers, elevated winds, and the potential for thunderstorms this afternoon, with an Air Quality alert in effect statewide as additional wildfire smoke funnels in.

[Mount Washington Observatory (MWOBS) @MWObs]

Though our view of the sunset tonight was obscured by summit fog, it thinned enough at times to glow in vibrant pink and orange hues. Pictured are views of both the summit from our Wildcat camera and the Observatory deck camera during different points at sunset this evening.

[Mount Washington Observatory (MWOBS) @MWObs]

Mount Washington Observatory is excited to honor North Conway climber Rick Wilcox with the Barbara and Brad Washburn Award at this Saturday's Seek the Peak celebration for his lasting impact within the climbing and search and rescue communities.
https://t.co/2kg6atnKT9

[Mount Washington Observatory (MWOBS) @MWObs]

Seek the Peak is THIS WEEKEND! 🌄Visit https://t.co/A2VXFhpMzl for the full event schedule. #SeekThePeak

[Mount Washington Observatory (MWOBS) @MWObs]

Hey! Nimbus here to remind you that strong-to-severe thunderstorms are possible on the summits & across northern New England over the next 24 hours (14 to 15 July 2026). To see the forecast my coworkers produced, please check out https://t.co/d1cUZjg1E0

#NHwx #NH #cat #nimbus

[Mount Washington Observatory (MWOBS) @MWObs]

Stacked lenticular clouds spanning from the NE to the SE on the leeward side of the summit of Mt Washington this afternoon (13 July 2026) ahead of an approaching front.

#NHwx #NH #clouds #lenticularclouds #mountains

[Mount Washington Observatory (MWOBS) @MWObs]

Mountain sandwort with Mt Jefferson, Adams, and Madison in the background at sunset today (12 July 2026).

#NH #NHwx #mountains #wildflowers #sunset

[Mount Washington Observatory (MWOBS) @MWObs]

Bluebird skies this morning (12 July 2026) while looking at the northern summits (Clay, Jefferson, Adams, and Madison) of the Presidential Range. Fair weather conditions will continue through Sunday. Details available at https://t.co/d1cUZjg1E0

#NHwx #NH #mountains #sunset

[Mount Washington Observatory (MWOBS) @MWObs]

Sunset from the summit of Mt Washington today (11 July 2026). Fair weather conditions continue into Sunday. Details available at https://t.co/d1cUZjg1E0

#NHwx #NH #mountains #sunset

[Mount Washington Observatory (MWOBS) @MWObs]

The last light of 10 July 2026 highlights clouds behind the summit sign.

#NH #sunset #mountains #summitsign #MtWashington

[Mount Washington Observatory (MWOBS) @MWObs]

A timelapse spanning about 40 minutes in real-time as a line of thunderstorms approached from the northwest on the afternoon of 9 July 2026. Note: There is no audio associated with this video.

#NH #NewHampshire #MtWashington #mountains #timelapse

[Mount Washington Observatory (MWOBS) @MWObs]

Nimbus spent the holiday weekend catching up on the news and, purr usual, on some much-needed rest. Check out the Observatory's weekend forecast for the Mount Washington Valley and the Higher Summits in the @ConwayDailySun every Saturday!

[Mount Washington Observatory (MWOBS) @MWObs]

Thank you to our #SeekthePeak Steward Sponsors @Arcteryx and @ObozFootwear✨

[Mount Washington Observatory (MWOBS) @MWObs]

Join #SeekthePeak Steward Eric and his hiking partner Darby on a summer adventure-- we're just TWO weeks away from the big weekend! To get in on the fun, visit https://t.co/A2VXFhpMzl and sign up to hike or sponsor awesome hikers like Eric.🌄

[Mount Washington Observatory (MWOBS) @MWObs]

Not quite red white and blue, but these festive lenticular clouds lit up the summit in shades of pink and blue during sunset last night! Happy 4th of July from the Mount Washington Observatory!

[Mount Washington Observatory (MWOBS) @MWObs]

Weather Observer and Education Specialist Bailey Nordin checks in from the summit of Mount Washington to share the current temperature while the Mount Washington Valley hits 91 degrees. For a look at the higher summits forecast, visit https://t.co/d1cUZjg1E0.

[Mount Washington Observatory (MWOBS) @MWObs]

Lightning danced around the summit after midnight last night, with this video from our Tower Camera (accessible under "webcams" at https://t.co/9E4phDasXf) showing the closest strikes between 1:14 and 1:17 AM.

[Mount Washington Observatory (MWOBS) @MWObs]

With temperatures climbing near the 70-degree mark on the summit, even those of us with cold paws are making more ventures into the weather room and even the great outdoors! Pictured here is Nimbus today, on one of his first visits to the weather room this summer.

[Mount Washington Observatory (MWOBS) @MWObs]

Our weather team is keeping a close eye on a significant heat event expected across the Mount Washington region, including the surrounding valleys, from Wednesday (7/1) through Friday.