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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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 broken clouds 77 9
Anaheim, CA broken clouds 60 8
Houston, TX broken clouds 77 8
Los Angeles, CA broken clouds 59 8
San Francisco, CA broken clouds 53 8
Tampa, FL clear sky 77 8
Sacramento, CA broken clouds 56 7
Kansas City, MO overcast clouds 63 5
Miami, FL scattered clouds 78 4
Phoenix, AZ scattered clouds 69 4
Atlanta, GA clear sky 66 3
Cincinnati, OH overcast clouds 51 3
San Diego, CA broken clouds 59 3
Seattle, WA light rain 52 3
St. Louis, MO overcast clouds 57 3
Denver, CO broken clouds 41 2
Baltimore, MD clear sky 49 1
Boston, MA clear sky 43 1
Bronx, NY clear sky 48 1
Chicago (AL), IL overcast clouds 45 1
Chicago (NL), IL overcast clouds 44 1
Cleveland, OH clear sky 36 1
Detroit, MI clear sky 37 1
Milwaukee, WI overcast clouds 39 1
Minneapolis, MN snow 33 1
Philadelphia, PA clear sky 46 1
Pittsburgh, PA overcast clouds 42 1
Queens, NY few clouds 49 1
Toronto, ON clear sky 35 1
Washington, DC clear sky 50 1
Data last updated: 1743555367
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