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	89	10
Houston, TX	few clouds	92	10
Miami, FL	broken clouds	92	10
Phoenix, AZ	scattered clouds	94	10
Cincinnati, OH	broken clouds	72	9
Jupiter, FL	clear sky	82	8
Anaheim, CA	overcast clouds	66	8
Atlanta, GA	broken clouds	78	8
Detroit, MI	clear sky	73	8
Los Angeles, CA	overcast clouds	66	8
San Francisco, CA	few clouds	64	8
West Palm Beach, FL	broken clouds	82	8
Baltimore, MD	overcast clouds	65	7
Kansas City, MO	broken clouds	70	7
Oakland, CA	few clouds	68	7
Pittsburgh, PA	broken clouds	75	7
St. Louis, MO	few clouds	77	7
Dyersville, IA	scattered clouds	73	6
Mexico City, México	light rain	84	5
Boston, MA	overcast clouds	65	5
Chicago (AL), IL	clear sky	66	5
San Diego, CA	overcast clouds	64	5
Seattle, WA	broken clouds	73	5
Milwaukee, WI	clear sky	64	4
Minneapolis, MN	broken clouds	72	4
Tampa Bay, FL	few clouds	83	4
Toronto, ON	overcast clouds	65	4
Washington, DC	overcast clouds	64	4
Williamsport, PA	overcast clouds	63	4
Bronx, NY	overcast clouds	61	3
Chicago (NL), IL	clear sky	63	3
Cleveland, OH	clear sky	67	3
Denver, CO	broken clouds	66	3
Philadelphia, PA	overcast clouds	62	3
Queens, NY	overcast clouds	61	3

Data last updated: 1715810167

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