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 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.

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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™
Phoenix, AZ few clouds 86 10
Mexico City, México scattered clouds 86 8
Anaheim, CA overcast clouds 62 8
Arlington, TX clear sky 79 8
Chicago (NL), IL few clouds 70 8
Dyersville, IA broken clouds 74 8
Houston, TX clear sky 77 8
Kansas City, MO clear sky 84 8
Los Angeles, CA overcast clouds 57 8
Minneapolis, MN clear sky 83 8
San Diego, CA overcast clouds 65 8
St. Louis, MO clear sky 77 8
Atlanta, GA clear sky 72 7
Chicago (AL), IL scattered clouds 70 5
Miami, FL broken clouds 76 5
Bronx, NY overcast clouds 52 4
Cincinnati, OH clear sky 65 4
Detroit, MI clear sky 61 4
Milwaukee, WI clear sky 60 4
Pittsburgh, PA clear sky 57 4
Tampa Bay, FL few clouds 74 4
Jupiter, FL clear sky 70 3
Baltimore, MD few clouds 62 3
Cleveland, OH clear sky 56 3
Denver, CO overcast clouds 74 3
Oakland, CA overcast clouds 51 3
Philadelphia, PA scattered clouds 57 3
Queens, NY broken clouds 52 3
San Francisco, CA overcast clouds 52 3
Seattle, WA scattered clouds 60 3
Washington, DC clear sky 62 3
West Palm Beach, FL broken clouds 72 3
Williamsport, PA scattered clouds 51 3
Boston, MA overcast clouds 49 1
Toronto, ON clear sky 51 1
Data last updated: 1713052565
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