Aug 29, 2026 Montana Renewable Energy Association (MREA) is teaming up with Citizens for Clean Energy (CCE) and Golden Triangle Resource Council for a signature summer celebration of clean energy, innovation, and community at the FREE Montana Clean Energy Fair! For more than a decade, the Fair has helped thousands of Montanans discover practical ways to save money, increase energy resilience, and connect with local experts and advocates for renewable energy and sustainable living in our state. The Montana Clean Energy Fair takes place on the 100 Block of Central Avenue in downtown Great Falls, right alongside the Great Falls Farmers Market. Make a morning of it by exploring both events and supporting the incredible local businesses, artisans, and vendors that make downtown a vibrant place. Parking is available on nearby streets and in public parking areas surrounding the 100 Block. Please note that downtown construction may affect some routes and parking access, so consider allowing a little extra travel time and following posted detour signs. For questions, contact info@montanarenewables.org or 406.214.9405. Learn more here. Sep 20, 2026 This event is FREE for businesses/organizations to participate as well as FREE for the community to attend. The 1-mile route, held downtown on Higgins Ave (from the XXXX’s to 5th Street), will include activities for all ages and abilities, free fitness classes, and the opportunity to meet with friends & neighbors to enjoy part of town, normally only used/occupied by vehicles. Learn more here. Sep 26, 2026 ClimateFEST is also the launch of the annual Climate Solutions Week, happening September 26 – October 4! Stay tuned for full details. Learn more about ClimateFEST here. If you’re interested in Climate Smart Missoula, check out their website. Oct 3, 2026 The 11th Annual Helena Sun Run will take place Saturday, October 3, 2026 at Smith Elementary School (2320 5th Ave). Click here for the RunSignUp registration page. The goal of the event is to support clean energy and climate solutions in Montana’s capital city. This year’s event will help complete the fundraising for a 50-kW solar photovoltaic array at Smith School. Donations can be made at the following link: https://runsignup.com/Race/Donate/MT/Helena/HelenaRunfortheSun The 1-mile starts at 10:00 (this event is untimed); The timed 5k starts at 10:30. Commemorative swag item to the first 200 to register. Registration is FREE for kids 12-and-under! For more information, contact Race Co-Directors Joel Harris (406-670-3319) or Patrick Judge (406-459-5838), info@vigilanterunning.org Helena | October 3, 10 am | Smith Elementary School, 2320 5th AveAug 2026
Clean Energy Fair 2026
9:00 AM - 12:00 PM
Sep 2026
Sunday Streets
12:00 PM - 4:00 PM
Sunday Streets events encourage all ages and all abilities to be active, support local businesses, and rethink how our Missoula community can be more livable. It’s an opportunity to temporarily close the streets to cars and open them to walkers and rollers of all ages and abilities; allowing Missoula to experience our streets in a whole new way, encouraging community and building support for broader transportation choices.Missoula's Annual ClimateFEST
10:00 AM - 2:00 PM
ClimateFEST is a free, family-friendly, FUN community celebration put on by Climate Smart Missoula! Featuring dozens of local organizations and businesses and drawing hundreds of Missoulians each year, join MEIC and other environmental groups to learn about climate solutions from renewable energy and electrification, to transportation and education, to art and advocacy, and more.Oct 2026
Helena Sun Run
10:00 AM - 3:00 PM
On-site packet pick-up opens at 9:00.
Have an event that you think may align with MEIC’s mission? Contact us at meic@meic.org, and we will consider posting it to our events calendar.
Also check out the Conservation Calendar for more Montana events.
