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	86	10
Arlington, TX	clear sky	100	10
Chicago (AL), IL	overcast clouds	86	10
Chicago (NL), IL	overcast clouds	86	10
Houston, TX	broken clouds	95	10
Las Vegas, NV	clear sky	98	10
Phoenix, AZ	clear sky	103	10
Sacramento, CA	few clouds	89	10
St. Louis, MO	few clouds	91	10
Williamsport, PA	moderate rain	72	8
Atlanta, GA	broken clouds	83	8
Baltimore, MD	overcast clouds	79	8
Boston, MA	overcast clouds	70	8
Cincinnati, OH	overcast clouds	77	8
Cleveland, OH	overcast clouds	75	8
Denver, CO	overcast clouds	78	8
Detroit, MI	overcast clouds	80	8
Los Angeles, CA	clear sky	84	8
Milwaukee, WI	scattered clouds	77	8
Minneapolis, MN	scattered clouds	72	8
Philadelphia, PA	overcast clouds	77	8
Queens, NY	overcast clouds	75	8
San Diego, CA	clear sky	81	8
San Francisco, CA	clear sky	69	8
Tampa, FL	light rain	83	8
Toronto, ON	overcast clouds	73	8
Washington, DC	overcast clouds	80	8
Bronx, NY	overcast clouds	74	7
Pittsburgh, PA	moderate rain	72	7
Miami, FL	overcast clouds	81	6
Tampa Bay, FL	scattered clouds	84	5
Kansas City, MO	moderate rain	72	4
Seattle, WA	overcast clouds	67	4

Data last updated: 1789253765

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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.