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	102	10
Atlanta, GA	few clouds	85	10
Baltimore, MD	overcast clouds	88	10
Houston, TX	scattered clouds	89	10
Las Vegas, NV	clear sky	91	10
Los Angeles, CA	scattered clouds	97	10
Phoenix, AZ	clear sky	95	10
Sacramento, CA	overcast clouds	90	10
San Diego, CA	scattered clouds	97	10
Tampa, FL	overcast clouds	86	10
Washington, DC	overcast clouds	87	10
Miami, FL	overcast clouds	87	9
Boston, MA	broken clouds	79	8
Bronx, NY	overcast clouds	84	8
Philadelphia, PA	overcast clouds	84	8
Pittsburgh, PA	light rain	64	8
Queens, NY	overcast clouds	85	8
San Francisco, CA	overcast clouds	72	8
Seattle, WA	scattered clouds	70	8
Arlington, TX	scattered clouds	79	7
Cincinnati, OH	light rain	65	7
Denver, CO	clear sky	82	7
Detroit, MI	clear sky	65	7
Williamsport, PA	overcast clouds	69	5
Tampa Bay, FL	overcast clouds	87	5
Milwaukee, WI	clear sky	66	4
St. Louis, MO	scattered clouds	74	4
Cleveland, OH	overcast clouds	62	3
Toronto, ON	overcast clouds	66	3
Chicago (AL), IL	clear sky	64	2
Chicago (NL), IL	clear sky	64	2
Minneapolis, MN	clear sky	63	2
Kansas City, MO	clear sky	71	1

Data last updated: 1790974567

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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.