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.

View All Parks

See Results

The Home Run Forecast Index has been featured on

HRF PREMIUM IS NOW AVAILABLE

HRF Premium provides on-demand HRF forecast data using up to date weather information along with our trained model. Check out a preview below or view the pricing page for more information.

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™
Phoenix, AZ	scattered clouds	92	10
Anaheim, CA	overcast clouds	62	8
Arlington, TX	overcast clouds	76	8
Cleveland, OH	broken clouds	64	8
Houston, TX	overcast clouds	79	8
Milwaukee, WI	overcast clouds	62	8
Chicago (AL), IL	overcast clouds	65	7
Chicago (NL), IL	moderate rain	68	7
Cincinnati, OH	few clouds	71	7
Denver, CO	overcast clouds	62	7
Los Angeles, CA	overcast clouds	62	7
Oakland, CA	broken clouds	53	7
San Francisco, CA	broken clouds	53	7
St. Louis, MO	broken clouds	67	7
Atlanta, GA	scattered clouds	71	6
West Palm Beach, FL	overcast clouds	78	6
Mexico City, México	broken clouds	75	5
Minneapolis, MN	clear sky	59	5
San Diego, CA	broken clouds	62	5
Tampa Bay, FL	few clouds	79	5
Jupiter, FL	overcast clouds	77	4
Detroit, MI	overcast clouds	68	4
Dyersville, IA	overcast clouds	57	4
Kansas City, MO	broken clouds	59	3
Miami, FL	scattered clouds	78	3
Pittsburgh, PA	overcast clouds	57	3
Seattle, WA	light rain	55	3
Toronto, ON	overcast clouds	61	3
Washington, DC	overcast clouds	53	3
Baltimore, MD	overcast clouds	52	2
Bronx, NY	broken clouds	53	2
Queens, NY	overcast clouds	53	2
Williamsport, PA	overcast clouds	52	2
Boston, MA	overcast clouds	47	1
Philadelphia, PA	light rain	50	1

Data last updated: 1714870566

API Access

Add Home Run Forecast to Your Site or App

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.