The Great Prosser Balloon Rally
September 25–27, 2026
Join us for three unforgettable sunrise mornings as colorful balloons rise above Prosser. Whether it’s your first Rally or a longtime tradition, we’re excited to welcome you!
Sunrise Launches
Arrive before sunrise and watch the magic unfold as pilots and crews prepare for flight and colorful balloons slowly take shape against the morning sky. Meet fellow spectators, enjoy the energy of the field, and be part of one of Prosser’s most cherished traditions.
When conditions are safe, balloons lift off around sunrise and drift wherever the wind leads. Because safety is our top priority, balloon activity may be limited to inflation only or canceled altogether due to weather conditions.
A tradition worth waking up for
Before the sun rises over the valley, pilots study the wind, crews prepare for flight, and spectators gather in anticipation of the day ahead.
Since 1991, the Great Prosser Balloon Rally has brought pilots, volunteers, neighbors, and visitors together to celebrate the beauty of flight. Every morning offers something different, but the sense of community and wonder remains the same. Whether balloons fill the sky or weather keeps them grounded, there’s always magic to be found on the field.
Read the rally story →
Your rally weekend
September 25, 2026
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Sunrise Launch
Day 1: Watch as pilots and crews prepare for flight, inflate the balloons, and take to the skies.
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Harvest Festival
Enjoy Prosser's Harvest Festival from 11 am to 6 pm, featuring unique vendors, handcrafted goods, and delicious local food.
September 26, 2026
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Sunrise Launch
Day 2: Watch as pilots and crews prepare for flight, inflate the balloons, and take to the skies.
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Harvest Festival
Enjoy Prosser's Harvest Festival from 8 am to 6 pm, featuring unique vendors, handcrafted goods, live entertainment, and delicious local food.
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Night Glow
Return to the airport Saturday evening to watch anchored balloons illuminate the field in a dazzling display of light, color, and fire.
September 27, 2026
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Sunrise Launch
Day 3: Watch as pilots and crews prepare for flight, inflate the balloons, and take to the skies.
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Harvest Festival
Enjoy Prosser's Harvest Festival from 8 am to 3 pm, featuring unique vendors, handcrafted goods, live entertainment, and delicious local food.
Saturday Night Glow
Return to the airport on Saturday evening for Night Glow, when colorful balloons light up the field after sunset. Paired with music and a festive atmosphere, it’s a favorite Rally weekend tradition.
Weather and wind conditions permitting.
Night Glow DetailsA little planning goes a long way
A few simple tips can help you make the most of your Rally experience, whether you’re joining us for sunrise launches, Night Glow, or the entire weekend.
Arrive early
Give yourself plenty of time to park, find a viewing spot, and watch pilots and crews prepare for flight.
Dress in layers
Early mornings can be cool, even during warm weather. Dressing in layers allows you to stay comfortable as temperatures change throughout the morning.
Check the weather
All balloon activities are weather dependent. Launch and Night Glow decisions are made onsite based on current conditions and safety requirements.
Meet the Pilots & Balloons
Powered by local support
The Great Prosser Balloon Rally is made possible by the generosity of local businesses, organizations, and community partners whose support helps keep this event soaring year after year.
Photo Gallery
Relive the sights, colors, and community spirit of the Great Prosser Balloon Rally through photos from years past.
Help the rally take flight.
Lend a hand, bring your organization, or help sustain a tradition that welcomes the whole valley.