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	97	10
Chicago (AL), IL	few clouds	86	10
Chicago (NL), IL	few clouds	85	10
Houston, TX	scattered clouds	95	10
Las Vegas, NV	few clouds	94	10
Phoenix, AZ	clear sky	96	10
Pittsburgh, PA	overcast clouds	86	10
St. Louis, MO	few clouds	88	10
Tampa, FL	broken clouds	90	10
Williamsport, PA	overcast clouds	72	8
Anaheim, CA	clear sky	82	8
Atlanta, GA	overcast clouds	77	8
Baltimore, MD	overcast clouds	81	8
Boston, MA	clear sky	75	8
Bronx, NY	overcast clouds	78	8
Cleveland, OH	light rain	70	8
Kansas City, MO	scattered clouds	83	8
Los Angeles, CA	clear sky	82	8
Milwaukee, WI	scattered clouds	81	8
Minneapolis, MN	scattered clouds	70	8
Philadelphia, PA	broken clouds	82	8
Queens, NY	overcast clouds	78	8
Sacramento, CA	overcast clouds	76	8
San Diego, CA	scattered clouds	80	8
San Francisco, CA	broken clouds	67	8
Toronto, ON	clear sky	76	8
Washington, DC	overcast clouds	80	8
Denver, CO	broken clouds	71	7
Detroit, MI	broken clouds	79	7
Miami, FL	broken clouds	92	7
Cincinnati, OH	overcast clouds	78	5
Seattle, WA	overcast clouds	62	4
Tampa Bay, FL	broken clouds	90	4

Data last updated: 1789235766

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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.