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	overcast clouds	93	10
Houston, TX	broken clouds	89	10
Sacramento, CA	clear sky	86	10
Anaheim, CA	clear sky	82	8
Atlanta, GA	clear sky	83	8
Bronx, NY	broken clouds	70	8
Chicago (NL), IL	overcast clouds	77	8
Cincinnati, OH	clear sky	79	8
Kansas City, MO	light rain	81	8
Los Angeles, CA	clear sky	83	8
Phoenix, AZ	scattered clouds	81	8
Queens, NY	scattered clouds	70	8
San Diego, CA	clear sky	79	8
San Francisco, CA	few clouds	74	8
Seattle, WA	overcast clouds	61	8
St. Louis, MO	clear sky	84	8
Tampa, FL	overcast clouds	85	8
Toronto, ON	scattered clouds	69	8
Baltimore, MD	scattered clouds	74	7
Chicago (AL), IL	overcast clouds	77	7
Denver, CO	overcast clouds	70	7
Miami, FL	light rain	79	7
Pittsburgh, PA	overcast clouds	71	7
Washington, DC	broken clouds	74	7
Philadelphia, PA	overcast clouds	72	6
Williamsport, PA	overcast clouds	69	5
Boston, MA	overcast clouds	65	5
Cleveland, OH	clear sky	75	5
Detroit, MI	clear sky	76	5
Milwaukee, WI	overcast clouds	76	5
Minneapolis, MN	moderate rain	62	5
Tampa Bay, FL	overcast clouds	83	4
Las Vegas, NV	broken clouds	70	3

Data last updated: 1790711767

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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.