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™
Arlington, TX	overcast clouds	77	8
Boston, MA	broken clouds	68	8
Houston, TX	broken clouds	81	8
St. Louis, MO	overcast clouds	66	8
West Palm Beach, FL	broken clouds	84	8
Atlanta, GA	broken clouds	75	7
Baltimore, MD	overcast clouds	69	7
Washington, DC	overcast clouds	70	7
Jupiter, FL	broken clouds	84	6
Kansas City, MO	overcast clouds	64	6
Philadelphia, PA	overcast clouds	67	6
Phoenix, AZ	clear sky	69	6
Pittsburgh, PA	overcast clouds	67	6
Cincinnati, OH	overcast clouds	67	5
Anaheim, CA	scattered clouds	61	4
Bronx, NY	overcast clouds	61	4
Denver, CO	scattered clouds	51	4
Detroit, MI	clear sky	62	4
Los Angeles, CA	clear sky	58	4
Miami, FL	broken clouds	84	4
Queens, NY	overcast clouds	63	4
San Diego, CA	few clouds	60	4
Tampa Bay, FL	clear sky	83	4
Toronto, ON	clear sky	62	4
Williamsport, PA	light rain	62	4
Mexico City, México	overcast clouds	75	3
Chicago (AL), IL	broken clouds	63	3
Chicago (NL), IL	broken clouds	61	3
Cleveland, OH	broken clouds	64	3
Dyersville, IA	clear sky	64	3
Milwaukee, WI	clear sky	62	3
Minneapolis, MN	clear sky	66	3
Oakland, CA	few clouds	52	3
San Francisco, CA	few clouds	54	3
Seattle, WA	broken clouds	50	2

Data last updated: 1715010966

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