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.

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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™
Baltimore, MD	broken clouds	76	8
Bronx, NY	scattered clouds	64	8
Houston, TX	broken clouds	78	8
Philadelphia, PA	broken clouds	72	8
Washington, DC	broken clouds	77	8
Arlington, TX	overcast clouds	66	7
Atlanta, GA	scattered clouds	71	7
Cleveland, OH	broken clouds	66	7
Pittsburgh, PA	broken clouds	67	7
Queens, NY	clear sky	65	7
Tampa, FL	scattered clouds	77	7
Cincinnati, OH	overcast clouds	67	6
Detroit, MI	broken clouds	61	6
Phoenix, AZ	scattered clouds	70	6
Boston, MA	overcast clouds	56	5
Kansas City, MO	broken clouds	59	5
Toronto, ON	overcast clouds	58	5
Anaheim, CA	overcast clouds	59	4
Miami, FL	scattered clouds	79	4
San Diego, CA	overcast clouds	59	4
Seattle, WA	clear sky	53	4
St. Louis, MO	clear sky	61	4
Los Angeles, CA	overcast clouds	56	3
Sacramento, CA	broken clouds	51	2
Chicago (AL), IL	overcast clouds	45	1
Chicago (NL), IL	overcast clouds	45	1
Denver, CO	clear sky	45	1
Milwaukee, WI	overcast clouds	46	1
Minneapolis, MN	overcast clouds	45	1
San Francisco, CA	overcast clouds	50	1

Data last updated: 1746194166

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