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	clear sky	90	10
Houston, TX	broken clouds	90	10
Phoenix, AZ	few clouds	96	10
West Palm Beach, FL	broken clouds	93	10
Anaheim, CA	overcast clouds	69	8
Atlanta, GA	overcast clouds	78	8
Chicago (AL), IL	broken clouds	85	8
Chicago (NL), IL	broken clouds	83	8
Cincinnati, OH	clear sky	81	8
Denver, CO	broken clouds	71	8
Dyersville, IA	clear sky	83	8
Kansas City, MO	clear sky	85	8
Milwaukee, WI	scattered clouds	82	8
Minneapolis, MN	broken clouds	79	8
Oakland, CA	scattered clouds	66	8
Pittsburgh, PA	few clouds	80	8
San Francisco, CA	scattered clouds	62	8
St. Louis, MO	scattered clouds	84	8
Jupiter, FL	overcast clouds	93	7
Los Angeles, CA	overcast clouds	65	7
San Diego, CA	few clouds	71	7
Mexico City, México	clear sky	84	6
Miami, FL	scattered clouds	92	6
Tampa Bay, FL	few clouds	89	6
Williamsport, PA	overcast clouds	65	6
Baltimore, MD	overcast clouds	64	5
Detroit, MI	clear sky	75	5
Philadelphia, PA	light rain	64	5
Toronto, ON	overcast clouds	67	5
Washington, DC	moderate rain	63	5
Bronx, NY	broken clouds	68	4
Cleveland, OH	few clouds	73	4
Queens, NY	light rain	66	4
Boston, MA	overcast clouds	57	3
Seattle, WA	overcast clouds	54	3

Data last updated: 1716062168

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