St Jacques Airport (RNS) 15 Day Weather Forecast, Rennes France
Current weather conditions and 15 day weather forecast for St Jacques Airport in Rennes, France including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain, wind speed, cloud, pressure, and UV index.
Current weather conditions at RNS
| 18 September 2026 Fri 10.2 ° C ( 50.4°F )  Clear |
Feels Like : 8.5 ° C / 47.3°F Humidity : % 85 Pressure : 1018 mb Wind Speed : 10.8 kmph / 6.7 miles from W 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 2 |
15-day weather forecast for St Jacques Airport, Rennes, France
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 18 September 2026 Fri |  Overcast |
9.7 ° C | 23.2 ° C | 15.3 ° C | % 67 | 16.2 km/h | 12% |
| 19 September 2026 Sat | Sunny |
10.6 ° C | 25.3 ° C | 16.8 ° C | % 70 | 18.7 km/h | 6% |
| 20 September 2026 Sun |  Partly Cloudy |
12.2 ° C | 26.8 ° C | 18.3 ° C | % 73 | 22 km/h | 11% |
| 21 September 2026 Mon | Sunny |
14.1 ° C | 28.1 ° C | 19.5 ° C | % 71 | 18 km/h | 6% |
| 22 September 2026 Tue | Sunny |
13.2 ° C | 28.6 ° C | 20.3 ° C | % 56 | 18 km/h | 3% |
| 23 September 2026 Wed | Sunny |
14.8 ° C | 28.9 ° C | 21.1 ° C | % 56 | 18.4 km/h | 5% |
| 24 September 2026 Thu | Sunny |
14.8 ° C | 30.3 ° C | 21.7 ° C | % 50 | 13.3 km/h | 4% |
| 25 September 2026 Fri | Sunny |
15.2 ° C | 32.8 ° C | 22.7 ° C | % 36 | 15.1 km/h | 1% |
| 26 September 2026 Sat | Sunny |
15.5 ° C | 31 ° C | 21.3 ° C | % 49 | 17.3 km/h | 3% |
| 27 September 2026 Sun | Overcast |
12.8 ° C | 21.1 ° C | 16.4 ° C | % 73 | 22 km/h | 19% |
| 28 September 2026 Mon | Overcast |
11.5 ° C | 23.3 ° C | 16.6 ° C | % 56 | 16.9 km/h | 10% |
| 29 September 2026 Tue | Sunny |
13.5 ° C | 29.5 ° C | 19.9 ° C | % 49 | 28.1 km/h | 4% |
| 30 September 2026 Wed | Sunny |
14.5 ° C | 27.7 ° C | 19.5 ° C | % 66 | 25.2 km/h | 6% |
| 01 October 2026 Thu |  Patchy rain nearby |
13.4 ° C | 16.4 ° C | 14.7 ° C | % 87 | 14 km/h | 78% |
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