What is the weather usually like on race day for the Project Blackbird 5k, 10k, & Half?

Based on the last 10 years of weather data for Potomac, MD, April race mornings typically start near 48°F and warm to around 69°F. On this calendar date it has rained in 5 of the last 10 years.

← Races in Potomac, MD

Project Blackbird 5k, 10k, & Half

Sun, Apr 25, 2027

In 170 days

Potomac, MD

Chesapeake and Ohio Canal Towpath

Typically 48–69°F · some rain risk

See last 10 years

On this date: rain 5 of the last 10 years

2026

49–67°F

rain

2025

55–77°F

rain

2024

44–58°F

dry

2023

39–61°F

dry

2022

50–73°F

dry

2021

48–64°F

rain

2020

42–62°F

dry

2019

54–72°F

dry

2018

52–61°F

rain

2017

50–58°F

rain

Best months to race in Maryland →

Save

Countdown and forecast for this race in the appGet app ›

Take this race with you

Scan to get the iPhone app: countdown, forecast and your saved races.

About this race

Come enjoy the fast and flat courses at Carderock Recreation Area. They are perfect for PRs!

Walkers are welcome to attend this event.

Course map

What's your Song of the Run?See what runners are listening to this week — a live Top 25, voted by runners.See the chart →

Your race? Boost it to #1 in every search, $1/day →

Train with a club

Run clubs near Potomac to train with before race day.

Montgomery County Road Runners Club, Inc. – MCRRC

Rockville, MD

Reston Runners

Reston, VA

DC Road Runners Club

Arlington, VA

Light Horse Track Club

Sterling, VA

See all run clubs near Potomac →

Suggested Races

Turkey Trot - Fun Run / Walk

Columbia, MD

Wednesday, November 25th, 2026

View details for race Turkey Trot - Fun Run / Walk

2026 PVTC Christmas Caper

Washington, DC

Saturday, December 19th, 2026

View details for race 2026 PVTC Christmas Caper

2026 Cranberry Crawl 5K and 10K

Washington, DC

Saturday, November 21st, 2026

View details for race 2026 Cranberry Crawl 5K and 10K

15th Annual Jack T. Farrar, Jr. "Fill the Shoes...

Alexandria, VA

Saturday, November 7th, 2026

View details for race 15th Annual Jack T. Farrar, Jr. "Fill the Shoes" 5K

2027 National Women's Half Marathon and 8K

Washington, DC

Sunday, May 2nd, 2027

Half

View details for race 2027 National Women's Half Marathon and 8K

24th Annual Potomac River Run Marathon & Half

Washington, DC

Saturday, May 1st, 2027

Marathon

Half

View details for race 24th Annual Potomac River Run Marathon & Half

Herndon Turkey Trot 5K

Herndon, VA

Saturday, November 21st, 2026

Trail

View details for race Herndon Turkey Trot 5K

Bubble Run | Maryland 2027

Fort Washington, MD

Saturday, July 31st, 2027

View details for race Bubble Run | Maryland 2027

hollys

Laurel, MD

Tuesday, July 31st, 2029

View details for race hollys

Veteran’s Day Defenders Dash 5k & 10k

Fairfax Station, VA

Saturday, November 7th, 2026

10K

Trail

View details for race Veteran’s Day Defenders Dash 5k & 10k

Veteran’s Lorton 5k, 10k, & 1M

Lorton, VA

Saturday, November 7th, 2026

10K

Trail

View details for race Veteran’s Lorton 5k, 10k, & 1M

Freedom is Never Free 5k, 10k, & Half

Potomac, MD

Sunday, November 8th, 2026

Half

10K

Fast

View details for race Freedom is Never Free 5k, 10k, & Half

Service and Sacrifice 5k & Half

Washington, DC

Wednesday, November 11th, 2026

Half

View details for race Service and Sacrifice 5k & Half

Miriam’s Kitchen 5k & 10k

Washington, DC

Saturday, November 14th, 2026

10K

View details for race Miriam’s Kitchen 5k & 10k

Thanksgiving Stuffing Stomp 5k & 10k

Washington, DC

Saturday, November 14th, 2026

10K

View details for race Thanksgiving Stuffing Stomp 5k & 10k

Autumn River Views 5k & 10k

Potomac, MD

Sunday, November 15th, 2026

10K

Fast

View details for race Autumn River Views 5k & 10k

Turkey Tumble for Autism 5k, 10k, & Half

Washington, DC

Sunday, November 15th, 2026

Half

10K

Fast

View details for race Turkey Tumble for Autism 5k, 10k, & Half

Port City Turkey Trot 5k & 10k

Alexandria, VA

Saturday, November 21st, 2026

10K

View details for race Port City Turkey Trot 5k & 10k

Bunnyman Turkey Trot 5k & 10k

Lorton, VA

Saturday, November 21st, 2026

10K

View details for race Bunnyman Turkey Trot 5k & 10k

DC Turkey Trot 5k & Half

Washington, DC

Sunday, November 22nd, 2026

Half

Fast

View details for race DC Turkey Trot 5k & Half

Organize this race?

Claim it free to manage your listing — and get it featured for free, while spots last.

Claim

Project Blackbird 5k, 10k, & Half

Course map

Suggested Races

Find The Run Newsletter