Grattai Mountain Weather Forecast
- 16
- 33
Partly cloudy
- 19
- 35
Partly cloudy
- 19
- 34
Partly cloudy
- 20
- 37
Partly cloudy
- 22
- 40
Partly cloudy
- 23
- 40
Partly cloudy
- 22
- 40
Partly cloudy
Today 22 Jan North West Slopes and Plains
Sunny morning. The chance of a thunderstorm in the afternoon and early evening. Winds northwest to northeasterly 15 to 20 km/h tending west to southwesterly 15 to 25 km/h in the middle of the day then tending southeast to southwesterly 20 to 30 km/h in the evening. Overnight temperatures falling to between 14 and 21 with daytime temperatures reaching 33 to 40.
Grattai Mountain Temperature Statistics View More
January Temperature
Narrabri Airport (33km)
Lowest 6 January, 2026
17.4 °CAverage January
27.8 °CHighest 11 January, 2026
39.3 °C
Climate (2021–Present)
Narrabri Airport (33km)
Average Low 2021–2026
11.9 °CAverage 2021–2026
18.9 °CAverage High 2021–2026
26.6 °C