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	91	10
Kansas City, MO	overcast clouds	89	10
Las Vegas, NV	overcast clouds	92	10
Phoenix, AZ	few clouds	96	10
Sacramento, CA	clear sky	86	10
St. Louis, MO	scattered clouds	86	10
Anaheim, CA	clear sky	78	8
Bronx, NY	broken clouds	79	8
Houston, TX	broken clouds	84	8
Los Angeles, CA	clear sky	76	8
Minneapolis, MN	clear sky	79	8
Pittsburgh, PA	overcast clouds	69	8
San Francisco, CA	scattered clouds	59	8
Tampa, FL	scattered clouds	84	8
Atlanta, GA	overcast clouds	73	7
Cleveland, OH	broken clouds	68	7
Miami, FL	few clouds	84	7
Philadelphia, PA	overcast clouds	78	7
Queens, NY	broken clouds	80	7
Baltimore, MD	overcast clouds	78	6
Chicago (AL), IL	clear sky	75	6
Chicago (NL), IL	clear sky	75	6
Detroit, MI	scattered clouds	73	6
Washington, DC	overcast clouds	77	6
Dyersville, IA	few clouds	77	5
Boston, MA	scattered clouds	72	5
Cincinnati, OH	overcast clouds	69	5
Denver, CO	overcast clouds	80	5
San Diego, CA	few clouds	75	5
Tampa Bay, FL	few clouds	84	5
Milwaukee, WI	clear sky	72	4
Seattle, WA	clear sky	72	4
Toronto, ON	scattered clouds	71	4

Data last updated: 1786503366

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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.