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™
Denver, CO	broken clouds	75	9
Anaheim, CA	few clouds	66	8
Atlanta, GA	few clouds	76	8
Cincinnati, OH	scattered clouds	78	8
Houston, TX	moderate rain	75	8
Oakland, CA	few clouds	61	8
Phoenix, AZ	broken clouds	80	8
Pittsburgh, PA	broken clouds	74	8
San Francisco, CA	few clouds	60	8
Washington, DC	overcast clouds	69	8
West Palm Beach, FL	few clouds	82	8
Arlington, TX	broken clouds	81	7
Minneapolis, MN	few clouds	69	7
Philadelphia, PA	overcast clouds	58	6
St. Louis, MO	broken clouds	70	6
Jupiter, FL	clear sky	82	5
Detroit, MI	overcast clouds	62	5
Mexico City, México	broken clouds	82	4
Baltimore, MD	overcast clouds	66	4
Chicago (AL), IL	scattered clouds	62	4
Cleveland, OH	overcast clouds	68	4
Dyersville, IA	overcast clouds	67	4
Los Angeles, CA	clear sky	66	4
Miami, FL	broken clouds	82	4
Seattle, WA	overcast clouds	51	4
Tampa Bay, FL	clear sky	84	4
Toronto, ON	overcast clouds	59	4
Chicago (NL), IL	scattered clouds	60	3
Kansas City, MO	moderate rain	57	3
Milwaukee, WI	clear sky	63	3
Queens, NY	overcast clouds	51	3
San Diego, CA	broken clouds	63	3
Williamsport, PA	overcast clouds	55	3
Bronx, NY	overcast clouds	51	2
Boston, MA	overcast clouds	51	1

Data last updated: 1714946166

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