Wed, Nov 4
Overcast
- High
- 16°
- Low
- 9°
- Precipitation
- 0 mm
- Chance of precipitation
- 15%
- Wind
- 9 km/h, gusts 20 km/h
- UV index
- 3
Sunrise 07:39 · Sunset 17:54
Confidence: high
ECMWF, ICON, and GFS: highs 15° – 17°, lows 8° – 10°, precipitation 0 – 0.2 mm
14-day forecast Zerti
Forecast as of Nov 4, 08:31
Back to ZertiEach day also shows how well three weather models agree on it: what the confidence means.
Thu, Nov 5
Light rain
- High
- 11°
- Low
- 6°
- Precipitation
- 10.1 mm
- Chance of precipitation
- 93%
- Wind
- 45 km/h, gusts 84 km/h
- UV index
- 1.2
Sunrise 07:40 · Sunset 17:53
Confidence: high
ECMWF, ICON, and GFS: highs 11° – 12°, lows 5° – 6°, precipitation 7.4 – 12.7 mm
Fri, Nov 6
Overcast
- High
- 9°
- Low
- 3°
- Precipitation
- 0 mm
- Chance of precipitation
- 1%
- Wind
- 29 km/h, gusts 56 km/h
- UV index
- 3.5
Sunrise 07:41 · Sunset 17:51
Confidence: high
ECMWF, ICON, and GFS: highs 8° – 10°, lows 2° – 4°, precipitation 0 mm
Sat, Nov 7
Light rain
- High
- 9°
- Low
- 4°
- Precipitation
- 1.5 mm
- Chance of precipitation
- 19%
- Wind
- 24 km/h, gusts 53 km/h
- UV index
- 3.4
Sunrise 07:42 · Sunset 17:50
Confidence: high
ECMWF, ICON, and GFS: highs 7° – 9°, lows 2° – 4°, precipitation 1.1 – 15.6 mm
Sun, Nov 8
Overcast
- High
- 5°
- Low
- 0°
- Precipitation
- 0 mm
- Chance of precipitation
- 23%
- Wind
- 39 km/h, gusts 73 km/h
- UV index
- 3.2
Sunrise 07:44 · Sunset 17:49
Confidence: medium
ECMWF, ICON, and GFS: highs 4° – 5°, lows 1°, precipitation 0 – 1.4 mm
Mon, Nov 9
Overcast
- High
- 5°
- Low
- 0°
- Precipitation
- 0 mm
- Chance of precipitation
- 9%
- Wind
- 26 km/h, gusts 59 km/h
- UV index
- 3.2
Sunrise 07:45 · Sunset 17:48
Confidence: high
ECMWF, ICON, and GFS: highs 5° – 7°, lows 0° – 1°, precipitation 0 – 0.3 mm
Tue, Nov 10
Overcast
- High
- 8°
- Low
- 1°
- Precipitation
- 0 mm
- Chance of precipitation
- 3%
- Wind
- 7 km/h, gusts 17 km/h
- UV index
- 2.7
Sunrise 07:46 · Sunset 17:47
Confidence: high
ECMWF, ICON, and GFS: highs 7° – 9°, lows 0° – 1°, precipitation 0 mm
Wed, Nov 11
Clear
- High
- 7°
- Low
- 0°
- Precipitation
- 0 mm
- Chance of precipitation
- 4%
- Wind
- 17 km/h, gusts 40 km/h
- UV index
- 2.3
Sunrise 07:47 · Sunset 17:46
Confidence: medium
ECMWF and GFS: highs 7° – 10°, lows 0° – 3°, precipitation 0 mm
ICON: no forecast for this day
Thu, Nov 12
Overcast
- High
- 9°
- Low
- 0°
- Precipitation
- 0 mm
- Chance of precipitation
- 9%
- Wind
- 17 km/h, gusts 41 km/h
- UV index
- 2.2
Sunrise 07:49 · Sunset 17:45
Confidence: low
ECMWF and GFS: highs 10° – 12°, lows -1° – 5°, precipitation 0 mm
ICON: no forecast for this day
Fri, Nov 13
Drizzle
- High
- 7°
- Low
- 2°
- Precipitation
- 0.6 mm
- Chance of precipitation
- 14%
- Wind
- 7 km/h, gusts 22 km/h
- UV index
- 3.1
Sunrise 07:50 · Sunset 17:44
Confidence: low
ECMWF and GFS: highs 8° – 15°, lows 2° – 6°, precipitation 0 – 0.6 mm
ICON: no forecast for this day
Sat, Nov 14
Drizzle
- High
- 4°
- Low
- 1°
- Precipitation
- 5.4 mm
- Chance of precipitation
- 10%
- Wind
- 9 km/h, gusts 21 km/h
- UV index
- 3
Sunrise 07:51 · Sunset 17:43
Confidence: low
ECMWF and GFS: highs 5° – 15°, lows 0° – 6°, precipitation 0 – 5.4 mm
ICON: no forecast for this day
Sun, Nov 15
Overcast
- High
- 8°
- Low
- 0°
- Precipitation
- 0 mm
- Chance of precipitation
- 20%
- Wind
- 5 km/h, gusts 15 km/h
- UV index
- 1.2
Sunrise 07:52 · Sunset 17:42
Confidence: medium
ECMWF and GFS: highs 9° – 10°, lows 0° – 3°, precipitation 0 mm
ICON: no forecast for this day
Mon, Nov 16
Partly cloudy
- High
- 12°
- Low
- 5°
- Precipitation
- 0 mm
- Chance of precipitation
- 24%
- Wind
- 22 km/h, gusts 50 km/h
- UV index
- 1
Sunrise 07:54 · Sunset 17:41
Confidence: low
ECMWF and GFS: highs 3° – 14°, lows 1° – 4°, precipitation 0 – 0.7 mm
ICON: no forecast for this day
Tue, Nov 17partial day
Drizzle
- High
- 9°
- Low
- 7°
- Precipitation
- 9.3 mm
- Chance of precipitation
- 22%
- Wind
- 13 km/h, gusts 31 km/h
- UV index
- 2.8
Sunrise 07:55 · Sunset 17:41
The forecast ends at 23:00, so this day's totals leave out the last hour.
Confidence: low
ECMWF and GFS: highs 5° – 9°, lows 0° – 6°, precipitation 0.2 – 9.3 mm
ICON: no forecast for this day
How the confidence is worked out
Forecasts are worked out by weather models: computer simulations of the atmosphere. The confidence compares three of the world's leading global models:
- ECMWF: the model of the European Centre for Medium-Range Weather Forecasts
- ICON: the model of the Deutscher Wetterdienst, Germany's national weather service
- GFS: the Global Forecast System of the US National Weather Service
When the models agree, the forecast is more certain; when they differ, the day is harder to forecast and its weather may turn out otherwise. Agreement means more certainty, not certainty: all three models can be wrong together.
ICON's forecast reaches about a week ahead, ECMWF's and GFS's about two weeks: each day shows only the models that reach it.
The level is the lower of these two:
- Highs and lows: high when the models' highs are within 2° of each other, and their lows too; medium within 4°; low beyond that
- Precipitation: medium when the models disagree on whether the day is wet (1 mm or more); low when one of them has 10 mm or more and another less than 1 mm
A day that only one model reaches has no level.
The models' forecasts: ECMWF, the Deutscher Wetterdienst and NOAA, through Open-Meteo.