Do certain weather conditions lead to more home runs?

Yes! Weather conditions can change the distance a batted ball travels by more than 20%. Home Run Forecast provides a simple way to see the if weather will help or hinder baseball flight during a game. The Home Run Forecast Index demonstrates a strong correlation with the number of HRs hit and runs scored in big league games. Check out our Premium Subscription for on-demand HRFI forecast data by team and for each game.

View All Parks

See Results

The Home Run Forecast Index has been featured on

HRF PREMIUM IS NOW AVAILABLE

HRF Premium provides on-demand HRF forecast data using up to date weather information along with our trained model. Check out a preview below or view the pricing page for more information.

HRF forecast value available for each contest, with detailed data throughout the game.

Detailed weather data and hourly index data for each park.

Current Weather Conditions and HRF Index

The table below shows the Home Run Forecast Index (HRFI) value for each big league ballpark. The HRFI ranges from 1 to 10, with 10 indicating the most favorable weather conditions for ball fight and 1 indicating least favorable. Learn more about how we calculate this index here.

This data is updated hourly at the top of the hour. For ballparks with a retractable roof, the index is calculated for open roof conditions. Check local sources for roof status. For ballparks with a permanent roof, the index is calculated for indoor conditions.

Ballpark Location	Sky Cover	Temperature (°F)	Home Run Forecast Index™
Phoenix, AZ	clear sky	89	10
Arlington, TX	clear sky	78	8
Atlanta, GA	clear sky	73	8
Baltimore, MD	few clouds	77	8
Bronx, NY	clear sky	79	8
Cleveland, OH	scattered clouds	70	8
Detroit, MI	clear sky	72	8
Houston, TX	broken clouds	80	8
Kansas City, MO	clear sky	79	8
Milwaukee, WI	clear sky	73	8
Philadelphia, PA	few clouds	76	8
Tampa, FL	scattered clouds	79	8
Washington, DC	scattered clouds	77	8
Chicago (AL), IL	broken clouds	77	7
Cincinnati, OH	clear sky	74	7
Miami, FL	few clouds	81	7
Pittsburgh, PA	clear sky	73	7
St. Louis, MO	few clouds	78	7
Sacramento, CA	clear sky	60	6
Queens, NY	few clouds	80	6
Anaheim, CA	clear sky	63	5
Boston, MA	clear sky	74	5
Chicago (NL), IL	broken clouds	76	5
Minneapolis, MN	broken clouds	70	5
San Francisco, CA	overcast clouds	58	5
Toronto, ON	scattered clouds	71	5
Denver, CO	clear sky	63	4
Los Angeles, CA	clear sky	63	4
San Diego, CA	broken clouds	63	4
Seattle, WA	clear sky	59	3

Data last updated: 1753872966

API Access

Add Home Run Forecast to Your Site or App

Give your audience a quick way to understand how weather will affect hitting distance. Enhance your game previews, picks and analysis with hourly forecasts up to two days out. When it comes to fantasy baseball or the sportsbook every edge counts.