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™
Jupiter, FL	clear sky	80	8
Arlington, TX	clear sky	68	8
Chicago (NL), IL	clear sky	59	8
Miami, FL	few clouds	82	8
West Palm Beach, FL	few clouds	81	8
Anaheim, CA	overcast clouds	60	7
Dyersville, IA	clear sky	60	7
Kansas City, MO	clear sky	62	7
Atlanta, GA	overcast clouds	67	6
Houston, TX	overcast clouds	67	6
Philadelphia, PA	broken clouds	59	6
Cincinnati, OH	overcast clouds	63	5
Minneapolis, MN	scattered clouds	64	5
Phoenix, AZ	clear sky	78	5
Pittsburgh, PA	overcast clouds	64	5
St. Louis, MO	broken clouds	62	5
Tampa Bay, FL	clear sky	79	5
Mexico City, México	scattered clouds	71	4
Baltimore, MD	moderate rain	61	4
Bronx, NY	few clouds	60	4
Chicago (AL), IL	clear sky	63	4
Cleveland, OH	overcast clouds	60	4
Detroit, MI	overcast clouds	61	4
Los Angeles, CA	overcast clouds	58	4
Toronto, ON	overcast clouds	60	4
Washington, DC	heavy intensity rain	61	4
Williamsport, PA	light rain	60	4
Boston, MA	light rain	56	3
Denver, CO	clear sky	56	3
Milwaukee, WI	clear sky	56	3
Oakland, CA	overcast clouds	54	3
Queens, NY	broken clouds	61	3
San Diego, CA	overcast clouds	61	3
San Francisco, CA	overcast clouds	53	3
Seattle, WA	overcast clouds	49	1

Data last updated: 1716033365

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