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™
Anaheim, CA	clear sky	87	10
Atlanta, GA	overcast clouds	86	10
Baltimore, MD	overcast clouds	87	10
Bronx, NY	few clouds	87	10
Denver, CO	clear sky	89	10
Houston, TX	clear sky	97	10
Las Vegas, NV	broken clouds	103	10
Los Angeles, CA	clear sky	88	10
Minneapolis, MN	clear sky	86	10
Philadelphia, PA	overcast clouds	88	10
Phoenix, AZ	few clouds	109	10
Queens, NY	scattered clouds	87	10
Sacramento, CA	clear sky	90	10
Tampa, FL	overcast clouds	87	10
Toronto, ON	overcast clouds	86	10
Washington, DC	overcast clouds	90	10
Arlington, TX	few clouds	95	9
Boston, MA	overcast clouds	83	8
Cleveland, OH	light rain	80	8
Pittsburgh, PA	overcast clouds	83	8
San Diego, CA	scattered clouds	83	8
San Francisco, CA	scattered clouds	70	8
Seattle, WA	broken clouds	68	8
St. Louis, MO	overcast clouds	73	8
Detroit, MI	light rain	81	6
Miami, FL	overcast clouds	90	6
Milwaukee, WI	light rain	67	6
Chicago (AL), IL	overcast clouds	72	5
Cincinnati, OH	overcast clouds	81	5
Tampa Bay, FL	overcast clouds	87	5
Chicago (NL), IL	overcast clouds	72	4
Kansas City, MO	broken clouds	78	3

Data last updated: 1785610565

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.