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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Aussie Focus Hub Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Check the live forecast above before heading into Grampians — conditions shift quickly here, with cool mornings often giving way to warm afternoons, especially in summer.
What’s driving the Grampians weather today?
Grampians National Park sits in a rain shadow east of the ranges, so its weather is drier than you’d expect. The live forecast above shows the immediate outlook.
- Summer (Dec–Feb): hot days 28–34°C, cool nights around 12°C. Sudden thunderstorms possible.
- Autumn (Mar–May): mild 18–25°C, crisp mornings. Best time for hiking.
- Winter (Jun–Aug): cold 7–13°C, frosts in valleys. Occasional snow above 800 m.
- Spring (Sep–Nov): warming 14–22°C, westerly winds pick up by October.
Planning ahead: longer outlooks
For trips, use the grampians weather 14 days or grampians weather 30 day forecast to track trends, but rely on the live forecast above for daily decisions.
- Grampians weather tomorrow: Check the live forecast above — it updates for the next 24 hours.
- Weather in Grampians National Park 10 days: reliability drops after day 5; focus on the 7-day window.
- Grampians weather hourly: Use the live forecast above for wind and rain timing, especially for climbing or camping.
- Grampians weather monthly / december: December averages 29°C max, 14°C min — expect fire danger warnings.
Is the grampians weather 14 day forecast reliable?
Forecasts beyond 7 days show general trends only. Use the 14-day view for planning clothing and accommodation, but check the live forecast above 48 hours before you go.
What’s the best season for Grampians weather?
Autumn (March–May) offers stable days 18–25°C, lower fire risk, and clear skies. Spring can be windy; summer can exceed 40°C, so start hikes early.
Can Grampians weather change suddenly?
Yes. Cold fronts from the Southern Ocean can drop temperatures 10°C in an hour and bring icy rain. Always pack layers and check the live forecast above before setting out.