Do certain weather conditions lead to more home runs?

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

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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™
Arlington, TX	few clouds	91	10
Chicago (AL), IL	scattered clouds	85	10
Houston, TX	clear sky	91	10
Kansas City, MO	clear sky	86	10
Phoenix, AZ	few clouds	100	10
St. Louis, MO	clear sky	85	10
Jupiter, FL	heavy intensity rain	84	8
Anaheim, CA	clear sky	72	8
Atlanta, GA	scattered clouds	74	8
Chicago (NL), IL	scattered clouds	84	8
Cincinnati, OH	clear sky	81	8
Denver, CO	broken clouds	72	8
Dyersville, IA	clear sky	84	8
Los Angeles, CA	broken clouds	69	8
Minneapolis, MN	clear sky	78	8
Oakland, CA	few clouds	65	8
Pittsburgh, PA	clear sky	79	8
San Diego, CA	scattered clouds	70	8
San Francisco, CA	few clouds	62	8
West Palm Beach, FL	heavy intensity rain	84	8
Miami, FL	broken clouds	89	7
Milwaukee, WI	scattered clouds	82	7
Mexico City, México	broken clouds	86	6
Cleveland, OH	clear sky	70	6
Williamsport, PA	overcast clouds	66	6
Baltimore, MD	overcast clouds	64	5
Detroit, MI	clear sky	75	5
Philadelphia, PA	moderate rain	64	5
Tampa Bay, FL	broken clouds	87	5
Toronto, ON	few clouds	67	5
Washington, DC	light rain	63	5
Boston, MA	overcast clouds	55	3
Bronx, NY	light rain	63	3
Queens, NY	light rain	62	3
Seattle, WA	overcast clouds	52	3

Data last updated: 1716072965

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