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™
Jupiter, FL	clear sky	84	8
Anaheim, CA	clear sky	71	8
Arlington, TX	clear sky	84	8
Atlanta, GA	broken clouds	74	8
Boston, MA	broken clouds	70	8
Houston, TX	clear sky	88	8
Los Angeles, CA	clear sky	69	8
Philadelphia, PA	light rain	65	8
Phoenix, AZ	few clouds	97	8
San Francisco, CA	few clouds	61	8
Washington, DC	overcast clouds	63	8
West Palm Beach, FL	clear sky	84	8
Oakland, CA	few clouds	65	7
San Diego, CA	broken clouds	66	6
Williamsport, PA	overcast clouds	60	6
Bronx, NY	light rain	66	5
Cincinnati, OH	overcast clouds	65	5
Detroit, MI	scattered clouds	64	5
Pittsburgh, PA	broken clouds	67	5
Queens, NY	light rain	65	5
Seattle, WA	few clouds	70	5
Tampa Bay, FL	few clouds	83	5
Mexico City, México	scattered clouds	84	4
Chicago (AL), IL	overcast clouds	56	4
Cleveland, OH	overcast clouds	67	4
Kansas City, MO	broken clouds	70	4
Toronto, ON	broken clouds	63	4
Baltimore, MD	overcast clouds	64	3
Chicago (NL), IL	overcast clouds	55	3
Denver, CO	broken clouds	70	3
Dyersville, IA	overcast clouds	63	3
Miami, FL	scattered clouds	84	3
Milwaukee, WI	clear sky	54	3
Minneapolis, MN	clear sky	70	3
St. Louis, MO	light rain	69	3

Data last updated: 1715730965

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