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™
Tampa, FL scattered clouds 86 10
Atlanta, GA broken clouds 78 8
Houston, TX overcast clouds 83 8
Miami, FL few clouds 87 8
St. Louis, MO scattered clouds 71 8
Kansas City, MO overcast clouds 58 6
Anaheim, CA clear sky 67 5
Los Angeles, CA clear sky 66 5
Phoenix, AZ clear sky 81 5
San Diego, CA clear sky 67 5
Sacramento, CA clear sky 65 4
Arlington, TX clear sky 73 4
San Francisco, CA few clouds 56 4
Baltimore, MD broken clouds 63 3
Boston, MA overcast clouds 55 3
Bronx, NY clear sky 58 3
Cincinnati, OH light rain 55 3
Cleveland, OH overcast clouds 56 3
Denver, CO clear sky 57 3
Detroit, MI overcast clouds 53 3
Philadelphia, PA scattered clouds 59 3
Pittsburgh, PA overcast clouds 59 3
Queens, NY clear sky 58 3
Toronto, ON broken clouds 54 3
Washington, DC scattered clouds 64 3
Seattle, WA scattered clouds 51 2
Chicago (AL), IL overcast clouds 51 1
Chicago (NL), IL overcast clouds 50 1
Milwaukee, WI moderate rain 42 1
Minneapolis, MN heavy intensity rain 42 1
Data last updated: 1747752967
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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.

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