Last 7 days
Today
27° / 25° High / Low (°C)
96% Humidity
100% Rain probability
Thunderstorm Condition
~24h Rain duration
What this means
In Patna on 24 Sep 2026, rain is expected: 100% chance, up to 34.8 mm forecast (source: Open-Meteo).
A thunderstorm is expected today for around 24 hours — 100% probability, up to 34.8mm forecast. An umbrella is the right call.
Rain season
Monsoon June–September; Patna's flooding risk goes beyond its own rainfall because the Ganga and Koshi rivers carry massive Himalayan runoff downstream from Nepal. August is the highest-risk month for serious inundation. Annual local rainfall is around 1,000mm, but above-average years can bring severe flooding from upstream.
Elsewhere in India