According to the Jordan Meteorological Department, temperatures are expected to rise on Monday and return to the annual average.

Daytime temperatures in Amman will reach highs of 18°C and lows of 8°C at night.
Weather will be generally warmer in the Jordan Valley and the Dead Sea with temperatures reaching highs of 23°C and lows of 18°C.
Meanwhile, temperatures in Aqaba will be 26°C during the day and 15°C during the night.

According to Arabia Weather, the weather is fairly suitable for practicing sports outdoors. Yet, you might need a light jacket during daytime and a warmer jacket at night.