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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HRF forecast value available for each contest, with detailed data throughout the 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™
Anaheim, CA	few clouds	69	8
Arlington, TX	broken clouds	74	8
Baltimore, MD	few clouds	79	8
Bronx, NY	clear sky	73	8
Chicago (NL), IL	broken clouds	76	8
Cincinnati, OH	scattered clouds	82	8
Cleveland, OH	overcast clouds	77	8
Houston, TX	broken clouds	83	8
Kansas City, MO	overcast clouds	65	8
Los Angeles, CA	clear sky	69	8
Philadelphia, PA	broken clouds	77	8
Pittsburgh, PA	broken clouds	81	8
Queens, NY	broken clouds	70	8
St. Louis, MO	few clouds	74	8
Washington, DC	few clouds	83	8
West Palm Beach, FL	broken clouds	80	8
Williamsport, PA	clear sky	74	8
Boston, MA	broken clouds	66	7
Detroit, MI	overcast clouds	71	7
Oakland, CA	few clouds	65	7
San Diego, CA	few clouds	68	7
San Francisco, CA	few clouds	62	7
Jupiter, FL	broken clouds	80	5
Chicago (AL), IL	broken clouds	74	5
Phoenix, AZ	few clouds	80	5
Seattle, WA	light rain	53	5
Miami, FL	broken clouds	80	4
Tampa Bay, FL	scattered clouds	84	4
Toronto, ON	overcast clouds	64	4
Mexico City, México	clear sky	78	3
Denver, CO	few clouds	53	3
Dyersville, IA	overcast clouds	60	3
Atlanta, GA	broken clouds	78	2
Milwaukee, WI	overcast clouds	45	1
Minneapolis, MN	moderate rain	46	1

Data last updated: 1714330566

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