Last 7 days
Today
38° / 29° High / Low (°C)
87% Humidity
27% Rain probability
Thunderstorm Condition
~2h Rain duration
What this means
In Patna on 21 Jun 2026, rain is possible: 27% chance, up to 0.5 mm forecast (source: Open-Meteo).
Rain is possible today but not certain — 27% chance of a thunderstorm, possibly for 2 hours. Carrying something compact is reasonable.
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