Extreme weather conditions such as heavy rain combined with high winds, sleet, or heavy snow might interfere with satellite transmissions. However, the likelihood of severe weather causing disruptions is vanishingly tiny.
DishTV guarantees 99 percent signal dependability regardless of the weather or geographic location. The one issue that might sometimes arise is weather-related damage to the satellite antenna. If this occurs, the satellite signal will be considerably disrupted and would need to be replaced.