Upcoming Events

Date Event Location Type Audience
Summer Reading Logo with 2026 graphics depicting a shattered floor
Jul 2 Thu
Water Rocket Challenge
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3-2-1, it’s gonna be fun! Observe a chemical reaction and have a blast with these safe, colorful water rockets to celebrate America’s birthday! This program is designed for children ages 6-12.

Basin City Elementary Program 6-12
Baby Storytime with rabbit.
Jul 3 Fri
Baby Storytime
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Discover the joy of learning and connection at Baby Storytime, where stories come alive and early literacy begins! Storytime is more than just reading books, it's an interactive, play-based experience designed to support your baby’s development and help prepare them for future learning.

Prosser Storytime 0-5
Lego Club at Mid-Columbia Libraries
Jul 3 Fri
LEGO Club
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Join us in participating in a fun, creative building experience and meet other LEGO fans! LEGO blocks will be provided.

Prosser Elementary Program 6-12
Branch Closure | Cierre de la sucursal
Jul 4 Sat
All Branches Closed for Independence Day

All branches are closed today, July 4, in observance of Independence Day. Find what you're looking for with our digital catalog 24/7.

Multiple Branches Branch Closure All Ages
Maroon twenty sided die with the 20 face up, a scroll and quill, a journal, a meeple, and a hand holding fire.
Jul 6 Mon
Gaming Guild
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Whether you're a new adventurer or farther along on your quest, there's always a seat at the table! Come for games, stay for community, creativity, and endless possibilities. 

Prosser Teen Program Teens
Preschool Storytime with fox.
Jul 7 Tue
Preschool Storytime With Ms. Dawn
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Preschool Storytime is thoughtfully designed to help children build the essential skills they need for a confident and successful transition into kindergarten.

Basin City Storytime 0-5
Preschool Storytime with fox.
Jul 7 Tue
Preschool Storytime With Ms. Liz
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Preschool Storytime is thoughtfully designed to help children build the essential skills they need for a confident and successful transition into kindergarten.

Prosser Storytime 0-5
Dinosaur fossil dig site.
Jul 7 Tue
Junior Prospectors
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Eureka! Sift through sand and mud to discover rocks, minerals, and maybe even some real fool’s gold with this sensory activity perfect for minor miners! This program is designed for children ages 3-5.

Kahlotus Preschool Program 0-5
Brown background with a leaf fossil, fish fossil, and dinosaur footprint fossil.
Jul 8 Wed
Geo-Treasures
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Calling all junior rockhounds! Discover guaranteed treasure and learn about crystal creation with these DIY geodes. Kids will create a sparkling treasure using readily available household supplies. This program is designed for children ages 9-12.

Prosser Elementary Program 9-12
Gray, gold, and blue rock.
Jul 9 Thu
Geo-Treasurers
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Calling all junior rockhounds! Discover guaranteed treasure and learn about crystal creation with these DIY geodes. Kids will create a sparkling treasure using readily available household supplies. This program is designed for children ages 9-12.

Kahlotus Elementary Program 9-12
Summer Reading Logo with 2026 graphics depicting a shattered floor
Jul 9 Thu
Geo-Treasurers
-

Calling all junior rockhounds! Discover guaranteed treasure and learn about crystal creation with these DIY geodes. Kids will create a sparkling treasure using readily available household supplies. This program is designed for children ages 9-12.

Basin City Elementary Program 9-12
Hora de cuentos with deer.
Jul 10 Fri
Bilingual Storytime With Ms. Janella
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Uno, dos, tres... ¡a leer! Bilingual Storytime offers a vibrant, language-rich experience designed to prepare children for kindergarten while introducing or reinforcing Spanish and English language skills. ¡Los esperamos! 

This program is for families with children of all ages.

Prosser Storytime 0-5
Summer Reading Logo with 2026 graphics depicting a shattered floor
Jul 10 Fri
OMSI Science Festival
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Dive into a world of wonder at the OMSI Science Festival. Explore exciting hands-on activities and mind-blowing experiments that will spark a love of science in young minds.

Prosser Special Event All Ages
Maroon twenty sided die with the 20 face up, a scroll and quill, a journal, a meeple, and a hand holding fire.
Jul 13 Mon
Gaming Guild
-

Whether you're a new adventurer or farther along on your quest, there's always a seat at the table! Come for games, stay for community, creativity, and endless possibilities. 

Prosser Teen Program Teens
Preschool Storytime with fox.
Jul 14 Tue
Preschool Storytime With Ms. Liz
-

Preschool Storytime is thoughtfully designed to help children build the essential skills they need for a confident and successful transition into kindergarten.

Prosser Storytime 0-5
Orange background with brown shadows of dinosaurs and trees.
Jul 14 Tue
Magna-saurus
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Recreate rugged landscapes and imagine dino digs! Kids will explore the imagination and properties of magnets through collaborative play. This program is designed for children ages 3-5.

Kahlotus Preschool Program 0-5
Heart with the shape of a dog cut out. Text underneath reads "Love on a Leash kids read to pets program"
Jul 14 Tue
Love on a Leash
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Come meet and read to our local certified therapy pets! Love on a Leash volunteers will bring their dogs to the library so that children can practice their reading skills in a safe, fun environment.

Prosser Community Program 6-12
Brown background with a leaf fossil, fish fossil, and dinosaur footprint fossil.
Jul 15 Wed
Primordial Goo
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Did you know there are several ways fossils can be preserved? Learn about one of the rarest forms of fossilization—preserved remains—while playing with slime! This program is designed for children ages 6-12.

Prosser Elementary Program 6-12
Neon green background with hatching dinosaur egg.
Jul 16 Thu
Primordial Goo
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Did you know there are several ways fossils can be preserved? Learn about one of the rarest forms of fossilization—preserved remains—while playing with slime! This program is designed for children ages 6-12.

Kahlotus Elementary Program 6-12
Summer Reading Logo with 2026 graphics depicting a shattered floor
Jul 16 Thu
Primordial Goo
-

Did you know there are several ways fossils can be preserved? Learn about one of the rarest forms of fossilization—preserved remains—while playing with slime! This program is designed for children ages 6-12.

Basin City Elementary Program 6-12
Baby Storytime with rabbit.
Jul 17 Fri
Baby Storytime
-

Discover the joy of learning and connection at Baby Storytime, where stories come alive and early literacy begins! Storytime is more than just reading books, it's an interactive, play-based experience designed to support your baby’s development and help prepare them for future learning.

Prosser Storytime 0-5
Lego Club at Mid-Columbia Libraries
Jul 17 Fri
LEGO Club
-

Join us in participating in a fun, creative building experience and meet other LEGO fans! LEGO blocks will be provided.

Prosser Elementary Program 6-12
Maroon twenty sided die with the 20 face up, a scroll and quill, a journal, a meeple, and a hand holding fire.
Jul 20 Mon
Gaming Guild
-

Whether you're a new adventurer or farther along on your quest, there's always a seat at the table! Come for games, stay for community, creativity, and endless possibilities. 

Prosser Teen Program Teens
Preschool Storytime with fox.
Jul 21 Tue
Preschool Storytime With Ms. Liz
-

Preschool Storytime is thoughtfully designed to help children build the essential skills they need for a confident and successful transition into kindergarten.

Prosser Storytime 0-5
Red background with T-Rex
Jul 21 Tue
Paint-A-Saurus
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Have a t-rexecellent time and practice colors, fine motor, and cognitive skills as littles paint and assemble a new 3D dinosaur pal in this craft! This program is designed for children ages 3-5.

Kahlotus Preschool Program 0-5
Mid-Columbia Libraries Board of Trustees
Jul 21 Tue
Board of Trustees Meeting
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The Mid-Columbia Libraries Board of Trustees meets the third Tuesday of every month, starting at 5:30 pm. Special meetings and workshop sessions are also held as needed.

Keewaydin Park Special Event All Ages
Brown background with a leaf fossil, fish fossil, and dinosaur footprint fossil.
Jul 22 Wed
Pet Dinos
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Quetzalcoatlus, I choose you! Pick out a miniature dino buddy and craft the perfect home for them, making sure they have the right landscape and plenty of food in this terrarium-inspired craft. This program is designed for children ages 9-12.

Prosser Elementary Program 9-12
Orange background with brown shadows of dinosaurs and trees.
Jul 23 Thu
Pet Dinos
-

Quetzalcoatlus, I choose you! Pick out a miniature dino buddy and craft the perfect home for them, making sure they have the right landscape and plenty of food in this terrarium-inspired craft. This program is designed for children ages 9-12.

Kahlotus Elementary Program 9-12
Summer Reading Logo with 2026 graphics depicting a shattered floor
Jul 23 Thu
Pet Dinos
-

Quetzalcoatlus, I choose you! Pick out a miniature dino buddy and craft the perfect home for them, making sure they have the right landscape and plenty of food in this terrarium-inspired craft. This program is designed for children ages 9-12.

Basin City Elementary Program 9-12
Baby Storytime with rabbit.
Jul 24 Fri
Baby Storytime
-

Discover the joy of learning and connection at Baby Storytime, where stories come alive and early literacy begins! Storytime is more than just reading books, it's an interactive, play-based experience designed to support your baby’s development and help prepare them for future learning.

Prosser Storytime 0-5