Do certain weather conditions lead to more home runs?

Yes! Weather conditions change the distance a batted ball travels by more than 20%. Home Run Forecast provides a simple indication of how weather will help or hinder baseball flight during a game. The HRFI demonstrates a strong correlation with HRs hit and runs scored in big league games. Check out our Premium Subscription for on-demand forecast data by team and 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	87	10
Houston, TX	clear sky	88	10
Phoenix, AZ	broken clouds	93	10
West Palm Beach, FL	scattered clouds	94	10
Jupiter, FL	broken clouds	94	9
Anaheim, CA	overcast clouds	67	8
Chicago (AL), IL	broken clouds	84	8
Chicago (NL), IL	broken clouds	81	8
Cincinnati, OH	few clouds	80	8
Dyersville, IA	clear sky	84	8
Kansas City, MO	clear sky	83	8
Minneapolis, MN	broken clouds	80	8
Pittsburgh, PA	broken clouds	78	8
San Francisco, CA	broken clouds	60	8
St. Louis, MO	clear sky	83	8
Atlanta, GA	overcast clouds	76	7
Detroit, MI	scattered clouds	75	7
Los Angeles, CA	broken clouds	64	7
Milwaukee, WI	scattered clouds	83	7
San Diego, CA	scattered clouds	70	7
Mexico City, México	clear sky	82	6
Miami, FL	scattered clouds	93	6
Tampa Bay, FL	clear sky	89	6
Toronto, ON	overcast clouds	66	6
Bronx, NY	scattered clouds	69	5
Oakland, CA	broken clouds	63	5
Queens, NY	overcast clouds	68	5
Williamsport, PA	overcast clouds	65	5
Baltimore, MD	overcast clouds	65	4
Cleveland, OH	scattered clouds	73	4
Denver, CO	overcast clouds	71	4
Philadelphia, PA	moderate rain	64	4
Washington, DC	moderate rain	63	4
Boston, MA	overcast clouds	57	3
Seattle, WA	overcast clouds	52	3

Data last updated: 1716058565

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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.