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™
Anaheim, CA	clear sky	87	10
Cincinnati, OH	overcast clouds	87	10
Houston, TX	light rain	89	10
Phoenix, AZ	clear sky	94	10
Sacramento, CA	clear sky	93	10
St. Louis, MO	overcast clouds	87	10
Las Vegas, NV	clear sky	89	9
Williamsport, PA	broken clouds	75	8
Arlington, TX	overcast clouds	76	8
Baltimore, MD	clear sky	82	8
Boston, MA	overcast clouds	72	8
Bronx, NY	scattered clouds	75	8
Cleveland, OH	broken clouds	82	8
Detroit, MI	overcast clouds	79	8
Los Angeles, CA	clear sky	84	8
Philadelphia, PA	few clouds	80	8
Pittsburgh, PA	clear sky	82	8
Queens, NY	few clouds	74	8
San Diego, CA	clear sky	82	8
San Francisco, CA	scattered clouds	72	8
Toronto, ON	light rain	72	8
Washington, DC	clear sky	84	8
Denver, CO	clear sky	72	7
Miami, FL	moderate rain	78	7
Minneapolis, MN	overcast clouds	66	7
Atlanta, GA	scattered clouds	85	6
Chicago (AL), IL	light rain	64	6
Milwaukee, WI	moderate rain	63	6
Tampa, FL	overcast clouds	84	6
Seattle, WA	overcast clouds	66	5
Tampa Bay, FL	overcast clouds	84	5
Chicago (NL), IL	moderate rain	64	3
Kansas City, MO	light rain	72	3

Data last updated: 1790891766

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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.