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™
Baltimore, MD	few clouds	87	10
Cincinnati, OH	scattered clouds	86	10
Washington, DC	few clouds	89	10
Philadelphia, PA	scattered clouds	86	9
Anaheim, CA	scattered clouds	71	8
Arlington, TX	overcast clouds	79	8
Bronx, NY	few clouds	79	8
Chicago (NL), IL	overcast clouds	77	8
Dyersville, IA	overcast clouds	64	8
Houston, TX	few clouds	76	8
Los Angeles, CA	broken clouds	72	8
Oakland, CA	few clouds	70	8
Phoenix, AZ	few clouds	89	8
Pittsburgh, PA	clear sky	83	8
San Diego, CA	broken clouds	69	8
San Francisco, CA	few clouds	68	8
St. Louis, MO	few clouds	82	8
Chicago (AL), IL	overcast clouds	76	7
West Palm Beach, FL	scattered clouds	82	7
Williamsport, PA	clear sky	88	6
Atlanta, GA	scattered clouds	84	5
Cleveland, OH	clear sky	69	5
Miami, FL	scattered clouds	82	5
Jupiter, FL	scattered clouds	82	4
Mexico City, México	overcast clouds	82	4
Detroit, MI	clear sky	70	4
Kansas City, MO	light rain	62	4
Tampa Bay, FL	clear sky	84	4
Toronto, ON	clear sky	67	4
Boston, MA	broken clouds	60	3
Denver, CO	broken clouds	60	3
Milwaukee, WI	clear sky	58	3
Minneapolis, MN	overcast clouds	52	3
Queens, NY	few clouds	74	3
Seattle, WA	clear sky	64	3

Data last updated: 1714686966

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