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™
Baltimore, MD	overcast clouds	86	10
Boston, MA	few clouds	87	10
Bronx, NY	overcast clouds	87	10
Houston, TX	clear sky	92	10
Las Vegas, NV	broken clouds	98	10
Philadelphia, PA	overcast clouds	87	10
Phoenix, AZ	broken clouds	104	10
Queens, NY	overcast clouds	86	10
Tampa, FL	overcast clouds	88	10
Washington, DC	overcast clouds	88	10
Anaheim, CA	clear sky	79	8
Cleveland, OH	overcast clouds	82	8
Denver, CO	clear sky	82	8
Los Angeles, CA	clear sky	82	8
Miami, FL	overcast clouds	91	8
Minneapolis, MN	clear sky	82	8
Pittsburgh, PA	overcast clouds	84	8
Sacramento, CA	scattered clouds	80	8
San Diego, CA	clear sky	80	8
Seattle, WA	overcast clouds	67	8
St. Louis, MO	overcast clouds	70	8
Toronto, ON	overcast clouds	85	8
Arlington, TX	scattered clouds	90	7
Atlanta, GA	overcast clouds	83	7
San Francisco, CA	scattered clouds	66	6
Chicago (NL), IL	overcast clouds	70	5
Detroit, MI	overcast clouds	81	5
Milwaukee, WI	moderate rain	66	5
Tampa Bay, FL	overcast clouds	88	5
Chicago (AL), IL	light rain	70	4
Cincinnati, OH	overcast clouds	75	4
Kansas City, MO	broken clouds	74	3

Data last updated: 1785603366

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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.