Montbonnot-Saint-Martin

Isère, Auvergne-Rhône-Alpes, France

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Current Weather

16°

Mostly Cloudy

Feels Like: 16°

Min: 15°

Max: 28°

The next few hours will be overcast, with today reaching 28°C and dropping to 15°C. The coming days will be drizzle

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Hourly Forecast

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Today
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Daylight Hours

07:38

Sunrise

19:14

Sunset

11 hours 35 minutes of sunlight today

Moon

Waning Gibbous

19:50

Moonrise

09:35

Moonset

Daily Forecast

Today

15°
28°

Tuesday

15°
29°

Wednesday

18°
26°

Thursday

16°
19°

Friday

14°
21°

Saturday

14°
27°

Sunday

15°
26°

Monday

15°
23°

Tuesday

13°
19°

Wednesday

12°
20°

Air Quality Data Available

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UV Index

No protection needed
0 Low
Low Extreme

Humidity

71% Humid
Low High

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Weather in Montbonnot-Saint-Martin today, September 28, 2026

Cloud cover dominates in Montbonnot-Saint-Martin on September 28, 2026, keeping sunshine limited. Expect a grey, overcast feel rather than long bright spells. Expect a grey start, with morning cloud around 100% by 07:00. Outdoor plans early on should not rely on bright skies.

The temperature range runs from about 15°C up to 28°C. Relative humidity sits between 33% and 76%, reaching its peak around 08:00. Winds stay light, near 2.2 km/h by 17:00, so the day feels still more than breezy.

The afternoon keeps an overcast feel, as cloud reaches about 100% around 16:00. Outdoor plans may still want a flexible backup. Expect visibility near 41.1 km, with poorer spells close to 34.7 km. The sun rises at 07:38 and sets at 19:14, for a total of 11 hours 35 minutes of sunlight today.

Overall, Montbonnot-Saint-Martin on September 28, 2026 stays grey and muted, so outdoor plans may want a flexible backup even with a high near 28°C.

Frequently asked questions about weather in Montbonnot-Saint-Martin

How warm does it get in Montbonnot-Saint-Martin?

The warmest month in Montbonnot-Saint-Martin is July, with average high temperatures of 24°C. The average temperature during this period is around 19°C.

How cold does it get in Montbonnot-Saint-Martin?

The coldest month in Montbonnot-Saint-Martin is January, with average low temperatures of -3°C. The average temperature during this period is around 0°C.

What is the wettest time of year in Montbonnot-Saint-Martin?

The wettest month in Montbonnot-Saint-Martin is May, with an average of 175mm of precipitation.

What is the driest time of year in Montbonnot-Saint-Martin?

The driest month in Montbonnot-Saint-Martin is February, with an average of 97mm of precipitation.

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Metric (°C, km/h)