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	101	10
Las Vegas, NV	clear sky	91	10
Los Angeles, CA	few clouds	97	10
Phoenix, AZ	clear sky	95	10
Sacramento, CA	overcast clouds	94	10
San Diego, CA	clear sky	98	10
Atlanta, GA	overcast clouds	81	8
Bronx, NY	overcast clouds	76	8
Denver, CO	clear sky	80	8
Houston, TX	scattered clouds	83	8
Miami, FL	light rain	85	8
Philadelphia, PA	overcast clouds	78	8
San Francisco, CA	overcast clouds	77	8
Tampa, FL	overcast clouds	84	8
Washington, DC	overcast clouds	79	8
Baltimore, MD	overcast clouds	77	7
Pittsburgh, PA	overcast clouds	61	7
Queens, NY	overcast clouds	76	7
Boston, MA	broken clouds	74	6
Cincinnati, OH	overcast clouds	64	6
Seattle, WA	scattered clouds	70	6
Arlington, TX	broken clouds	79	5
Detroit, MI	overcast clouds	64	5
Tampa Bay, FL	overcast clouds	85	5
Williamsport, PA	overcast clouds	67	4
St. Louis, MO	clear sky	73	4
Chicago (AL), IL	clear sky	61	3
Cleveland, OH	overcast clouds	61	3
Toronto, ON	clear sky	62	3
Chicago (NL), IL	clear sky	61	2
Milwaukee, WI	clear sky	62	2
Kansas City, MO	clear sky	69	1
Minneapolis, MN	clear sky	61	1

Data last updated: 1790981767

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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.