# Regional weather forecasts for various locations

> Live situation record from CLSTR: https://clstr.news/situations/regional-weather-forecasts-for-various-locations
> Updated: 2026-09-15T17:30:57.000Z. Sources: 11. Developments: 3.

Regional weather forecasts for late August and mid-September 2026 indicate diverse and shifting meteorological conditions across several locations.

In Argentina, weather patterns show significant regional variability. In Catamarca, the Universidad Nacional de Catamarca predicted a week of significant thermal amplitude and wind, with temperatures peaking at 29°C and lows of 13°C, alongside northeast wind gusts between 42 and 50 km/h. In the Puna region, specifically Antofagasta de la Sierra, temperatures were expected to drop to -1°C. In Buenos Aires, the Servicio Meteorológico Nacional (SMN) forecast a return of rain, with isolated storms and showers expected on Thursday, August 27, accompanied by southeast winds of up to 22 km/h.

By mid-September, Argentina is expected to experience further meteorological shifts. In Patagonia, a high-pressure system is predicted to temporarily stabilize conditions and raise temperatures, though a subsequent cold front from the Pacific is expected to bring rain and snow to mountainous sectors. Wind gusts in the Chubut steppe could exceed 85 km/h, with some southern areas seeing minimum temperatures near -10°C. In central and northern regions, a shift in wind circulation is expected to trigger a rapid temperature rise, with northern areas potentially reaching 35°C. This warm period is forecasted to be followed by a cold front arriving Sunday, bringing rain, storms, and a sharp temperature drop starting in southwest Buenos Aires province.

Other regional forecasts include La Paz, where high temperatures of 36°C and a heat index of 41°C were expected with a 40% chance of afternoon storms. Curicó was forecasted to be fully overcast, while Añatuya was predicted to be sunny and pleasant. In Chubut, colder weather was noted with temperatures between 0°C and 9°C, and Rawson reported temperatures around -2°C.

## Timeline

### 2026-09-15: Argentina weather forecast predicts temperature shifts and incoming storms

Argentina faces volatile weather shifts, including rising temperatures up to 35°C in the north and incoming cold fronts bringing rain, storms, and snow to Patagonia and central regions.

2 sources. https://clstr.news/cluster/argentina-weather-forecast-predicts-temperature-shifts-and-incoming-storms

### 2026-08-23: Argentina weather: temperature extremes in Catamarca and rain in Buenos Aires

Argentina faces diverse weather: Catamarca will experience high thermal amplitude and strong winds, while Buenos Aires expects a return of rain and isolated storms by Thursday.

5 sources. https://clstr.news/cluster/weather-forecasts-for-la-guancha-and-chubut

### 2026-08-21: Regional weather forecasts for La Paz, Curicó, and Añatuya

Regional weather forecasts for August 2026 show heat and storms in La Paz, overcast skies in Curicó, and sunny, mild conditions in Añatuya.

5 sources. https://clstr.news/cluster/aatuya-weather-forecast-predicts-sunny-weekend

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Cite as: Regional weather forecasts for various locations. CLSTR, https://clstr.news/situations/regional-weather-forecasts-for-various-locations