About Grono
Grono is a Swiss municipality located in the canton of Graubünden (GR), at 46.233° latitude and 9.183° longitude. The municipality is part of the eastern Alps, alpine climate with snowy winters and cool summers. Also known as Grono, Grono benefits from precise weather monitoring with hourly and 15-day forecasts.
Climate of Grono
The climate in Grono is characteristic of the eastern Alps, alpine climate with snowy winters and cool summers. Temperatures, precipitation and wind conditions vary throughout the year with local features linked to altitude and surrounding terrain. Our data comes from official weather stations and real-time Netatmo sensors for Grono and neighboring municipalities.
On this page you will find the detailed weather forecast for Grono: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.
Climate of Grono: 1991–2020 normals
In Grono (1146 m), the mean annual temperature is 7.5 °C. The warmest month is July (16.8 °C on average) and the coldest January (−1.9 °C). About 1686 mm of precipitation falls per year, peaking in August (200 mm) with a minimum in February (60 mm). The mean monthly maximum reaches 28.0 °C and the absolute minimum −9.0 °C.
Mean monthly precipitation (mm) — bar height relative to the wettest month.
| Month | Mean T | Abs. max | Abs. min | Precip. (mm) |
|---|---|---|---|---|
| Jan | −1.9 °C | 10.2 °C | −9.0 °C | 72 |
| Feb | −0.1 °C | 12.4 °C | −8.5 °C | 60 |
| Mar | 4.2 °C | 17.8 °C | −5.7 °C | 77 |
| Apr | 7.6 °C | 20.5 °C | −2.8 °C | 131 |
| May | 11.2 °C | 24.0 °C | 1.5 °C | 175 |
| Jun | 14.9 °C | 27.2 °C | 5.1 °C | 190 |
| Jul | 16.8 °C | 28.0 °C | 7.0 °C | 177 |
| Aug | 16.5 °C | 27.9 °C | 6.9 °C | 200 |
| Sep | 12.3 °C | 23.5 °C | 3.2 °C | 171 |
| Oct | 7.6 °C | 19.3 °C | −1.3 °C | 166 |
| Nov | 2.5 °C | 13.6 °C | −5.6 °C | 181 |
| Dec | −1.6 °C | 9.6 °C | −8.9 °C | 87 |
| Year | 7.5 °C | 28.0 °C | −9.0 °C | 1686 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Grono (3 km, 324 m), Magadino / Cadenazzo (21 km, 203 m), S. Bernardino (26 km, 1639 m), adjusted to the elevation of Grono (1146 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby cities
Check the weather of cities near Grono:
- Weather Cama
- Weather Castaneda
- Weather Roveredo (GR)
- Weather Santa Maria in Calanca
- Weather Buseno
- Weather Arbedo-Castione
- Weather San Vittore
- Weather Lostallo
- Weather Lumino
- Weather Calanca
- Weather Bellinzona
- Weather Soazza
→ Nearby cities · Canton Graubünden
Frequently asked questions about weather in Grono
What is the weather in Grono today?
At the top of the page you will find the current temperature, precipitation and wind in Grono, updated in real time.
What is the 15-day forecast for Grono?
The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Grono.
Will it rain tomorrow in Grono?
Check the 48-hour hourly forecast to see exactly when precipitation is expected in Grono.
What is the air quality in Grono?
The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Grono.
Are there weather alerts for Grono?
Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.
At what altitude is Grono located?
Grono sits at around 1146 m above sea level in the canton of Graubünden. This elevation directly affects the temperatures, rain-snow line and snow cover shown in the forecasts.
What is the warmest month in Grono?
The warmest month in Grono is July, averaging 16.8 °C (1991–2020 normal). The coldest is January at −1.9 °C.
How much does it rain in Grono per year?
Grono receives about 1686 mm of precipitation a year. The wettest month is August (200 mm), the driest February (60 mm).
When is the best time to visit Grono?
For warmth and sunshine: July (16.8 °C on average, — h of sun). The coldest month is January (−1.9 °C). Check the 15-day forecast above for your dates.