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	scattered clouds	89	10
Miami, FL	broken clouds	90	10
Phoenix, AZ	scattered clouds	94	10
West Palm Beach, FL	scattered clouds	89	10
Anaheim, CA	overcast clouds	67	8
Atlanta, GA	few clouds	82	8
Baltimore, MD	broken clouds	75	8
Chicago (NL), IL	overcast clouds	72	8
Cincinnati, OH	broken clouds	77	8
Dyersville, IA	broken clouds	75	8
Houston, TX	overcast clouds	80	8
Los Angeles, CA	broken clouds	67	8
Minneapolis, MN	scattered clouds	69	8
Pittsburgh, PA	few clouds	76	8
San Diego, CA	scattered clouds	69	8
San Francisco, CA	few clouds	63	8
Seattle, WA	broken clouds	63	8
St. Louis, MO	light rain	73	8
Chicago (AL), IL	overcast clouds	72	7
Oakland, CA	few clouds	67	7
Arlington, TX	broken clouds	67	6
Kansas City, MO	scattered clouds	75	6
Cleveland, OH	scattered clouds	71	5
Milwaukee, WI	broken clouds	67	5
Toronto, ON	clear sky	67	5
Washington, DC	broken clouds	76	5
Williamsport, PA	scattered clouds	71	5
Denver, CO	scattered clouds	75	4
Detroit, MI	clear sky	72	4
Tampa Bay, FL	few clouds	84	4
Mexico City, México	clear sky	82	3
Boston, MA	broken clouds	60	3
Bronx, NY	overcast clouds	63	3
Philadelphia, PA	broken clouds	66	3
Queens, NY	overcast clouds	63	3

Data last updated: 1715900165

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