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™ | |
|---|---|---|---|---|
| Kansas City, MO |  clear sky | 86 | 10 | |
| Phoenix, AZ | clear sky | 98 | 9 | |
| Anaheim, CA | clear sky | 76 | 8 | |
| Arlington, TX | clear sky | 82 | 8 | |
| Chicago (NL), IL |  overcast clouds | 71 | 8 | |
| Houston, TX | clear sky | 79 | 8 | |
| Los Angeles, CA | clear sky | 78 | 8 | |
| Minneapolis, MN | clear sky | 69 | 8 | |
| Sacramento, CA | clear sky | 82 | 8 | |
| San Francisco, CA | broken clouds | 65 | 8 | |
| St. Louis, MO | clear sky | 80 | 8 | |
| Denver, CO | clear sky | 86 | 7 | |
| San Diego, CA |  few clouds | 73 | 7 | |
| Chicago (AL), IL | overcast clouds | 71 | 5 | |
| Milwaukee, WI | clear sky | 68 | 5 | |
| Tampa Bay, FL |  broken clouds | 74 | 5 | |
| Cincinnati, OH |  clear sky | 68 | 4 | |
| Cleveland, OH |  few clouds | 57 | 4 | |
| Tampa, FL |  scattered clouds | 77 | 4 | |
| Atlanta, GA | broken clouds | 65 | 3 | |
| Baltimore, MD | broken clouds | 52 | 3 | |
| Detroit, MI | scattered clouds | 56 | 3 | |
| Miami, FL |  light rain | 74 | 3 | |
| Pittsburgh, PA | overcast clouds | 59 | 3 | |
| Washington, DC | broken clouds | 56 | 3 | |
| Boston, MA | broken clouds | 45 | 1 | |
| Bronx, NY | few clouds | 47 | 1 | |
| Philadelphia, PA | overcast clouds | 48 | 1 | |
| Queens, NY | broken clouds | 46 | 1 | |
| Seattle, WA | broken clouds | 47 | 1 | |
| Toronto, ON | overcast clouds | 37 | 1 |
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.
