Lo orbits are still way above storms. Rain will suck.
The rain and wind effects are as much about the aim going off. 2200 yard shot is a lot harder to make than a 34 yard shot. Same goes for a sat out 22000 vs 340 klicks. Signal strength will of course drop so more dropped packets in a storm leading to slower link, but we are talking world class sniper vs someone almost legally blind being able to hit the target. Wind and rain shake the antenna (gun) a bit.
On top of that at the Ka band (most rain attenuated of the bands being used) there is a about a free space loss of 152 db with 10 db antennas on both ends for Starlink and 188 db for DTV so for the same wattage transmitter/receiver/antennas DTV signals are 3981 times weaker than Starlink. Rain fade ranges from 5% to 20% for rain/snow/ice.