Do certain weather conditions lead to more home runs?

Yes! Weather conditions can change the distance a batted ball travels by more than 20%. Home Run Forecast provides a simple way to see the if weather will help or hinder baseball flight during a game. The Home Run Forecast Index demonstrates a strong correlation with the number of HRs hit and runs scored in big league games. Check out our Premium Subscription for on-demand HRFI forecast data by team and for each 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™
Arlington, TX	clear sky	89	10
Atlanta, GA	overcast clouds	87	10
Baltimore, MD	clear sky	85	10
Houston, TX	clear sky	90	10
Kansas City, MO	broken clouds	90	10
Miami, FL	light rain	92	10
Phoenix, AZ	broken clouds	86	10
St. Louis, MO	broken clouds	87	10
Tampa, FL	scattered clouds	89	10
Washington, DC	clear sky	85	10
Anaheim, CA	overcast clouds	72	8
Boston, MA	few clouds	81	8
Bronx, NY	overcast clouds	82	8
Cincinnati, OH	overcast clouds	81	8
Detroit, MI	broken clouds	79	8
Las Vegas, NV	overcast clouds	77	8
Los Angeles, CA	overcast clouds	71	8
Philadelphia, PA	few clouds	83	8
Pittsburgh, PA	broken clouds	77	8
San Diego, CA	overcast clouds	72	8
Toronto, ON	overcast clouds	78	8
Milwaukee, WI	overcast clouds	74	7
Queens, NY	overcast clouds	83	7
Sacramento, CA	overcast clouds	64	7
Chicago (AL), IL	overcast clouds	76	6
Cleveland, OH	broken clouds	73	6
Minneapolis, MN	overcast clouds	74	6
Dyersville, IA	heavy intensity rain	72	5
Chicago (NL), IL	overcast clouds	76	5
San Francisco, CA	overcast clouds	63	5
Seattle, WA	clear sky	64	5
Tampa Bay, FL	broken clouds	89	5
Denver, CO	scattered clouds	70	4

Data last updated: 1786636566

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Give your audience a quick way to understand how weather will affect hitting distance. Enhance your game previews, picks and analysis with hourly forecasts up to two days out. When it comes to fantasy baseball or the sportsbook every edge counts.