Rain is forecast across several Mexican cities for Monday, September 21, 2026, with moderate showers expected in Guadalajara, where the morning temperature is set at 24 C and the maximum at 27 C.

The outlook covers at least seven cities. Moderate rain is also forecast in Puerto Vallarta, where temperatures will span 28 C to 33 C, and in Tapalpa, which is set for 20 C at morning and a high of 21 C, the coolest reading in the forecast. Tlajomulco de Zúñiga sees moderate rain with a 24 C morning and a 25 C maximum, and Cancun's moderate rain carries a range of 23 C to 32 C.

Two cities expect lighter rain. Tepatitlán de Morelos is set for light rain with a 24 C start and a 26 C high, while Monterrey's light rain comes with a steady 35 C from morning to maximum, the hottest reading of the group.

All readings are for Monday only; none of the forecasts extends past the day. The spread runs from Tapalpa's 21-degree high to Monterrey's steady 35-degree mark, with the rest of the cities settling in the mid-20s to low-30s range.