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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Australia Pulse Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
The live forecast above shows today’s conditions. Across the Grampians National Park, typical summer averages reach 27°C at Halls Gap, while winter lows drop to 6°C. The park’s elevation creates cooler temperatures on the ranges and warmer valleys.
What weather can I expect over the next 14 days?
For the next 14 days, Grampians weather 14 days forecasts indicate a mix of partly cloudy days and afternoon showers. Daytime highs generally range 22–28°C, with overnight lows between 10–15°C. If you are checking weather in Grampians National Park 10 days, expect this pattern to persist. For a grampians weather forecast 21 days or a grampians weather 30 day forecast, long-range models suggest a gradual warming trend into late spring. The grampians weather monthly outlook points to above-average temperatures and near-normal rainfall for this time of year.
How does elevation affect the weather in the park?
Elevation strongly influences local conditions. Peaks above 1,100 metres can be 5–8°C cooler than Halls Gap, with more frequent mist and rain. Valleys and lower trails are generally milder and drier. Always check the live forecast above before heading to the summit for up-to-date wind and visibility.
Does it rain a lot in the Grampians?
Rainfall varies by location: Halls Gap receives about 700 mm annually, while higher western slopes can exceed 1,200 mm. Most rain falls in winter and spring, but summer thunderstorms can bring heavy downpours over short periods.
What is the best season for hiking?
Spring (September–November) and autumn (March–May) offer mild temperatures, lower fire danger and clearer skies. Summer days can be hot (often above 30°C) and winter trails can be wet and cold, especially at elevation.
When are bushfire warnings most common?
Bushfire danger peaks during summer (December–February) and into early autumn. Always check the live forecast above and the Bureau’s fire danger ratings before visiting. See our severe weather warning page for alerts.
For broader Australian conditions, visit our Australia weather hub or check Melbourne Weather for the nearest city forecast.