No, bad weather does not stop Pasture.io from showing pasture readings. However, it can stop a new satellite-backed reading from being available.
When cloud, fog, haze, smoke, or poor image quality affects the satellite image, Pio may use the Cloudy Days model to help estimate pasture cover and growth until the next usable satellite image is available -> watch the video :)
The technology we use to measure pasture can't see past things like cloud cover and foggy weather. So even though photos may look dramatic on earth (especially with the contrast dialled up!), images tend to look white and fluffy from a satellite orbiting earth at an altitude of 450km.
