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™
Washington, DC	clear sky	86	10
Baltimore, MD	few clouds	84	8
Bronx, NY	clear sky	80	8
Chicago (NL), IL	overcast clouds	65	8
Cincinnati, OH	clear sky	78	8
Cleveland, OH	scattered clouds	79	8
Dyersville, IA	broken clouds	59	8
Philadelphia, PA	broken clouds	83	8
Pittsburgh, PA	clear sky	79	8
St. Louis, MO	overcast clouds	64	8
West Palm Beach, FL	broken clouds	79	8
Williamsport, PA	clear sky	79	8
Jupiter, FL	broken clouds	79	7
Arlington, TX	broken clouds	69	6
Queens, NY	few clouds	78	6
Houston, TX	broken clouds	73	5
Los Angeles, CA	clear sky	64	5
Phoenix, AZ	clear sky	75	5
San Diego, CA	broken clouds	59	5
Anaheim, CA	few clouds	61	4
Atlanta, GA	scattered clouds	72	4
Chicago (AL), IL	broken clouds	65	4
Detroit, MI	few clouds	75	4
Kansas City, MO	clear sky	63	4
Miami, FL	scattered clouds	80	4
Milwaukee, WI	overcast clouds	63	4
Tampa Bay, FL	clear sky	81	4
Boston, MA	broken clouds	67	3
Denver, CO	scattered clouds	58	3
Oakland, CA	few clouds	55	3
San Francisco, CA	few clouds	56	3
Mexico City, México	clear sky	71	2
Minneapolis, MN	overcast clouds	47	1
Seattle, WA	overcast clouds	41	1
Toronto, ON	overcast clouds	48	1

Data last updated: 1714406166

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