"under such weather" is grammatically correct and can be used in written English.
It is often used to describe a situation or condition caused by the current weather. Example: Under such weather conditions, it was impossible to go outside without an umbrella.
Under such conditions, irrespective of the climate, weathering processes are incomplete and the sands derived from such terrane are high in feldspar content.
Under such conditions, each nest site is likely to be equally exposed to predation and inclement weather.
Under such conditions the future is unpredictable.
Under such conditions, hydration is imperative.
Tomas Berdych, who lost to Murray in the semifinal that finished Saturday, said the players should not have been forced to compete under such extreme weather conditions, but Ferrer declined to complain about the way his fortunes shifted after the delay.
He says such weather forecasts should be probabilistic, not deterministic.
Be prepared for such weather situations.
Previous Bonds were marketed under such enticing slogans as "weather protection exceptionally good", but the Bug vanquished all memories of black and white small ads featuring Minicars driven by depressed, tweed-jacketed chaps.
Several methods are used to study thunderstorms, such as weather radar, weather stations, and video photography.
Environmental As problems are commonly the result of mobilization under natural conditions, such as weathering of arsenic-bearing minerals and geothermal sources, but human activities have contributed to an important additional impact by means of mining processes, fossil fuel combustion, and the use of arsenic in pesticides, herbicides, crop desiccants, and livestock feed [ 5].
