气温 + 超过 + Value
温 (wēn) can refer to "temperature" and is often seen in compounds or short expressions related to weather. In context, 气温 (qìwēn) is the full word for "air temperature," and 温 serves as an abbreviation.
今天气温比昨天低了好几度。
jīntiān qìwēn bǐ zuótiān dīle hǎo jǐ dù.
Today's temperature is several degrees lower than yesterday's.
这两天气温突然升高,大家注意防暑。
zhè liǎng tiān qìwēn tūrán shēnggāo, dàjiā zhùyì fángshǔ.
The temperature has risen suddenly these past two days; everyone should watch out for heatstroke.
天气预报说明天最高温会到三十八度。
tiānqì yùbào shuō míngtiān zuìgāo wēn huì dào sānshíbā dù.
The weather forecast says tomorrow's high will reach thirty-eight degrees.