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.

Detailed weather data and hourly index data for each park.

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™
Anaheim, CA	few clouds	63	8
Arlington, TX	broken clouds	78	8
Cincinnati, OH	broken clouds	77	8
Houston, TX	broken clouds	76	8
Phoenix, AZ	broken clouds	80	8
Pittsburgh, PA	broken clouds	76	8
West Palm Beach, FL	scattered clouds	85	8
Atlanta, GA	broken clouds	83	7
Denver, CO	broken clouds	68	7
San Francisco, CA	scattered clouds	57	7
Washington, DC	overcast clouds	65	7
Mexico City, México	broken clouds	84	6
Los Angeles, CA	scattered clouds	62	6
Oakland, CA	scattered clouds	58	6
Jupiter, FL	few clouds	85	5
Cleveland, OH	overcast clouds	71	5
Detroit, MI	overcast clouds	61	5
Philadelphia, PA	light rain	56	5
St. Louis, MO	broken clouds	70	5
Tampa Bay, FL	scattered clouds	87	5
Toronto, ON	overcast clouds	61	5
Chicago (AL), IL	broken clouds	61	4
Miami, FL	broken clouds	83	4
Minneapolis, MN	few clouds	67	4
Baltimore, MD	overcast clouds	63	3
Chicago (NL), IL	broken clouds	58	3
Dyersville, IA	overcast clouds	65	3
Kansas City, MO	moderate rain	58	3
Milwaukee, WI	clear sky	63	3
San Diego, CA	few clouds	62	3
Williamsport, PA	overcast clouds	53	3
Boston, MA	overcast clouds	52	2
Bronx, NY	moderate rain	51	2
Queens, NY	moderate rain	51	2
Seattle, WA	overcast clouds	49	2

Data last updated: 1714935366

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