Be prepared with the most accurate 10-day forecast for Gangtok , Sikkim 737103 with highs, lows, chance of precipitation from The Weather Channel and Weather .com Get accurate weather forecasts and updates for Gangtok from the India Meteorological Department. ☁ Gangtok Sikkim India 15 Day Weather Forecast . Today Gangtok Sikkim India: Partly Cloudy with a temperature of 21°C and a wind North-North-East speed of 6 Km/h. The humidity will be 76% and there will be 0.0 mm of precipitation. Gangtok , Sikkim, India Weather Forecast, with current conditions, wind, air quality, and what to expect for the next 3 days.
