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	95	10
Atlanta, GA	clear sky	94	10
Houston, TX	clear sky	92	10
Kansas City, MO	broken clouds	95	10
Las Vegas, NV	clear sky	87	10
Phoenix, AZ	few clouds	96	10
St. Louis, MO	clear sky	97	10
Anaheim, CA	clear sky	76	8
Bronx, NY	scattered clouds	81	8
Cincinnati, OH	scattered clouds	83	8
Denver, CO	overcast clouds	84	8
Los Angeles, CA	clear sky	76	8
Miami, FL	light rain	82	8
Pittsburgh, PA	scattered clouds	76	8
San Francisco, CA	clear sky	65	8
Tampa, FL	broken clouds	89	8
Boston, MA	scattered clouds	79	7
Detroit, MI	overcast clouds	72	7
Sacramento, CA	clear sky	74	7
San Diego, CA	scattered clouds	77	7
Philadelphia, PA	broken clouds	83	6
Queens, NY	scattered clouds	81	6
Seattle, WA	scattered clouds	63	6
Washington, DC	few clouds	85	6
Williamsport, PA	clear sky	79	5
Baltimore, MD	broken clouds	82	5
Chicago (AL), IL	few clouds	69	5
Tampa Bay, FL	scattered clouds	90	5
Chicago (NL), IL	scattered clouds	69	3
Minneapolis, MN	heavy intensity rain	61	3
Milwaukee, WI	light rain	66	2
Toronto, ON	scattered clouds	72	2
Cleveland, OH	clear sky	74	1

Data last updated: 1789757767

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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.