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	96	10
Houston, TX	broken clouds	92	10
Las Vegas, NV	clear sky	98	10
Phoenix, AZ	clear sky	109	10
Sacramento, CA	broken clouds	90	10
Atlanta, GA	clear sky	79	8
Baltimore, MD	scattered clouds	73	8
Chicago (AL), IL	clear sky	73	8
Cincinnati, OH	clear sky	69	8
Los Angeles, CA	clear sky	85	8
Queens, NY	clear sky	71	8
Seattle, WA	clear sky	71	8
Tampa, FL	overcast clouds	83	8
Toronto, ON	moderate rain	67	8
Detroit, MI	moderate rain	68	7
Miami, FL	light rain	84	7
Philadelphia, PA	few clouds	72	7
San Diego, CA	scattered clouds	82	7
San Francisco, CA	overcast clouds	67	7
Washington, DC	light rain	74	7
Denver, CO	overcast clouds	73	6
Kansas City, MO	clear sky	75	6
Williamsport, PA	heavy intensity rain	66	5
Bronx, NY	few clouds	71	5
Chicago (NL), IL	clear sky	72	5
Milwaukee, WI	broken clouds	66	5
Tampa Bay, FL	overcast clouds	83	5
Boston, MA	overcast clouds	67	4
Minneapolis, MN	clear sky	67	4
Pittsburgh, PA	overcast clouds	65	4
St. Louis, MO	clear sky	74	4
Cleveland, OH	broken clouds	65	3

Data last updated: 1787453765

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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.