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	100	10
Atlanta, GA	few clouds	91	10
Baltimore, MD	scattered clouds	88	10
Boston, MA	overcast clouds	85	10
Bronx, NY	clear sky	87	10
Houston, TX	scattered clouds	96	10
Kansas City, MO	broken clouds	94	10
Las Vegas, NV	scattered clouds	95	10
Minneapolis, MN	clear sky	89	10
Philadelphia, PA	clear sky	88	10
Phoenix, AZ	clear sky	98	10
St. Louis, MO	scattered clouds	91	10
Tampa, FL	few clouds	92	10
Washington, DC	broken clouds	88	10
Queens, NY	clear sky	87	9
Anaheim, CA	overcast clouds	84	8
Chicago (AL), IL	overcast clouds	81	8
Chicago (NL), IL	overcast clouds	81	8
Cincinnati, OH	moderate rain	71	8
Cleveland, OH	overcast clouds	76	8
Detroit, MI	overcast clouds	77	8
Los Angeles, CA	overcast clouds	83	8
Pittsburgh, PA	scattered clouds	78	8
Sacramento, CA	overcast clouds	84	8
San Diego, CA	scattered clouds	81	8
San Francisco, CA	overcast clouds	69	8
Toronto, ON	broken clouds	70	8
Miami, FL	scattered clouds	93	7
Seattle, WA	clear sky	75	7
Denver, CO	overcast clouds	90	6
Milwaukee, WI	scattered clouds	83	6
Dyersville, IA	broken clouds	82	5
Tampa Bay, FL	clear sky	91	4

Data last updated: 1786564566

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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.