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.

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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 overcast clouds 71 8
Houston, TX overcast clouds 74 8
West Palm Beach, FL few clouds 73 8
Jupiter, FL clear sky 72 6
Atlanta, GA scattered clouds 66 6
Baltimore, MD overcast clouds 64 5
Cincinnati, OH light rain 64 5
Denver, CO clear sky 59 5
Pittsburgh, PA overcast clouds 62 5
Tampa Bay, FL clear sky 73 5
Washington, DC overcast clouds 64 5
Miami, FL few clouds 75 4
Philadelphia, PA overcast clouds 58 4
St. Louis, MO overcast clouds 62 4
Anaheim, CA clear sky 52 3
Bronx, NY overcast clouds 53 3
Cleveland, OH overcast clouds 55 3
Kansas City, MO overcast clouds 58 3
Los Angeles, CA clear sky 53 3
Phoenix, AZ clear sky 60 3
Queens, NY overcast clouds 53 3
San Diego, CA clear sky 51 3
Williamsport, PA overcast clouds 55 3
Mexico City, México broken clouds 68 1
Boston, MA overcast clouds 51 1
Chicago (AL), IL overcast clouds 48 1
Chicago (NL), IL overcast clouds 48 1
Detroit, MI clear sky 49 1
Dyersville, IA scattered clouds 48 1
Milwaukee, WI clear sky 47 1
Minneapolis, MN clear sky 49 1
Oakland, CA few clouds 46 1
San Francisco, CA few clouds 47 1
Seattle, WA overcast clouds 48 1
Toronto, ON clear sky 48 1
Data last updated: 1714992970
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