Muggy

a.	1.	Moist; damp; moldy; as, muggy straw.
	2.	Warm, damp, and windless; uncomfortably hot and humid; sultry; as, muggy air, weather.

Adj.

1.

muggy - hot or warm and humid; "muggy weather"; "the steamy tropics"; "sticky weather" Synonyms: steamy, sticky

boggy, clammy, close, dampish, dank, dewy, fenny, marshy, moist, mucky, oppressive, rainy, roric, roriferous, soggy, steamy, stifling, suffocating, sultry, swampy, tacky, undried, wet, wettish