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	87	10
Phoenix, AZ	overcast clouds	90	10
Tampa, FL	few clouds	89	10
Miami, FL	light rain	89	9
Dyersville, IA	scattered clouds	74	8
Atlanta, GA	clear sky	84	8
Baltimore, MD	light rain	77	8
Bronx, NY	overcast clouds	80	8
Chicago (AL), IL	overcast clouds	78	8
Chicago (NL), IL	overcast clouds	76	8
Cincinnati, OH	scattered clouds	83	8
Cleveland, OH	broken clouds	77	8
Detroit, MI	scattered clouds	78	8
Houston, TX	clear sky	84	8
Las Vegas, NV	clear sky	79	8
Milwaukee, WI	overcast clouds	78	8
Minneapolis, MN	overcast clouds	71	8
Philadelphia, PA	overcast clouds	77	8
Pittsburgh, PA	overcast clouds	75	8
Queens, NY	overcast clouds	79	8
St. Louis, MO	moderate rain	82	8
Toronto, ON	overcast clouds	73	8
Washington, DC	overcast clouds	77	8
Anaheim, CA	scattered clouds	67	7
Boston, MA	few clouds	73	7
Kansas City, MO	scattered clouds	77	7
Los Angeles, CA	broken clouds	66	7
Sacramento, CA	overcast clouds	60	6
Denver, CO	scattered clouds	64	5
San Diego, CA	scattered clouds	70	5
Tampa Bay, FL	clear sky	87	5
San Francisco, CA	overcast clouds	58	4
Seattle, WA	overcast clouds	60	3

Data last updated: 1786892165

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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.