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™
Phoenix, AZ	clear sky	94	10
Jupiter, FL	overcast clouds	78	8
Arlington, TX	clear sky	83	8
Chicago (NL), IL	few clouds	76	8
Houston, TX	clear sky	82	8
Kansas City, MO	clear sky	77	8
West Palm Beach, FL	broken clouds	78	8
San Francisco, CA	scattered clouds	56	7
St. Louis, MO	clear sky	74	7
Anaheim, CA	clear sky	63	6
Chicago (AL), IL	clear sky	75	6
Denver, CO	overcast clouds	65	6
Dyersville, IA	clear sky	77	6
Atlanta, GA	scattered clouds	66	5
Cincinnati, OH	clear sky	67	5
Los Angeles, CA	few clouds	63	5
Miami, FL	few clouds	85	5
Minneapolis, MN	clear sky	68	5
Baltimore, MD	broken clouds	62	4
Cleveland, OH	clear sky	62	4
Milwaukee, WI	clear sky	70	4
Oakland, CA	scattered clouds	56	4
Philadelphia, PA	overcast clouds	61	4
Pittsburgh, PA	clear sky	65	4
Tampa Bay, FL	clear sky	82	4
Washington, DC	broken clouds	61	4
Williamsport, PA	overcast clouds	63	4
Boston, MA	light rain	54	3
Bronx, NY	overcast clouds	60	3
Detroit, MI	clear sky	64	3
Queens, NY	overcast clouds	60	3
San Diego, CA	scattered clouds	62	3
Toronto, ON	clear sky	60	3
Mexico City, México	moderate rain	75	2
Seattle, WA	overcast clouds	50	1

Data last updated: 1716087367

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