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™
Phoenix, AZ	clear sky	87	10
Baltimore, MD	clear sky	70	8
Boston, MA	scattered clouds	69	8
Bronx, NY	clear sky	72	8
Cleveland, OH	overcast clouds	76	8
Houston, TX	overcast clouds	83	8
Philadelphia, PA	clear sky	71	8
Queens, NY	few clouds	72	8
Sacramento, CA	overcast clouds	83	8
Washington, DC	clear sky	70	8
Anaheim, CA	clear sky	77	7
Miami, FL	overcast clouds	79	7
St. Louis, MO	moderate rain	72	7
Arlington, TX	overcast clouds	73	6
Cincinnati, OH	overcast clouds	77	6
Detroit, MI	moderate rain	71	6
Los Angeles, CA	clear sky	74	6
San Francisco, CA	overcast clouds	59	6
Toronto, ON	overcast clouds	69	6
Williamsport, PA	broken clouds	67	5
Las Vegas, NV	clear sky	80	5
Milwaukee, WI	overcast clouds	61	5
Pittsburgh, PA	broken clouds	73	5
Tampa Bay, FL	overcast clouds	80	5
Tampa, FL	overcast clouds	77	5
Atlanta, GA	few clouds	74	4
Chicago (AL), IL	overcast clouds	62	4
Denver, CO	clear sky	62	4
San Diego, CA	clear sky	74	4
Seattle, WA	scattered clouds	60	4
Chicago (NL), IL	moderate rain	61	3
Kansas City, MO	heavy intensity rain	62	3
Minneapolis, MN	clear sky	55	3

Data last updated: 1790909766

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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.