My small local airport has a UNICOM (Universal Communications) frequency as well as a CTAF (Common Traffic Advisory Frequency). Both are the same frequency number.
What it doesn’t have is any sort of weather advisory frequency such as AWOS (Automated Weather Observing System) or ASOS (Automated Surface Observing System).
It does have one windsock.
Flying Ultralight vehicles (airplanes) some choose not to use any sort of radio systems. Some also choose not to use any sort of electronic device such as tablets or phones with sectionals & frequencies loaded to them.
Flying Ultralight vehicles also allow pilots to maneuver into small airports & airfields, often using very limited &/or basic systems.
Without a weather frequency to observe the wind direction & speed, what are some ways that you utilize in order to land your vehicle/airplane safely.