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	93	10
Atlanta, GA	clear sky	90	10
Houston, TX	clear sky	90	10
Kansas City, MO	clear sky	92	10
Miami, FL	moderate rain	89	10
Phoenix, AZ	clear sky	89	10
St. Louis, MO	clear sky	92	10
Tampa, FL	broken clouds	88	9
Washington, DC	few clouds	85	9
Bronx, NY	clear sky	79	8
Cincinnati, OH	overcast clouds	83	8
Las Vegas, NV	clear sky	81	8
Pittsburgh, PA	overcast clouds	74	8
Seattle, WA	overcast clouds	60	8
Anaheim, CA	scattered clouds	73	7
Boston, MA	clear sky	77	7
Denver, CO	overcast clouds	77	7
Los Angeles, CA	scattered clouds	72	7
Philadelphia, PA	broken clouds	80	7
San Diego, CA	overcast clouds	73	7
Baltimore, MD	overcast clouds	84	6
Detroit, MI	scattered clouds	70	6
Queens, NY	clear sky	79	6
Williamsport, PA	clear sky	76	5
Sacramento, CA	clear sky	66	5
Tampa Bay, FL	broken clouds	88	5
Chicago (AL), IL	broken clouds	70	4
San Francisco, CA	clear sky	62	4
Toronto, ON	scattered clouds	69	3
Chicago (NL), IL	few clouds	71	2
Milwaukee, WI	overcast clouds	66	2
Minneapolis, MN	heavy intensity rain	61	2
Cleveland, OH	clear sky	74	1

Data last updated: 1789750569

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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.