Rule Morning Frost

Morning Frost Forecast for Wengen, Alps

Wengen, Bern, Switzerland

Wengen’s car-free village occupies a sunny bench above Lauterbrunnen, pairing chalet foregrounds with sweeping views toward the Jungfrau massif.

11 matching opportunities in the 14-day forecast.

Hourly forecast scores

Forecast valid from Oct 23, 2026, 9:00 PM UTC (one hour; not an observation)

Frost Probability

42%

Soil Temperature3.0°C

Dew Point-1.2°C

Wind Speed2.6m/s

Cloud Cover100%

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Zurich

First upcoming window

Light Frost at Sunrise

Wengen

Mon, Oct 26 · 07:00–08:00 · 1h window

Low confidence

43%

❄️Frost Probability68%

Soil Temperature: 0.5°C

Dew Point: -0.6°C (low dew point)

Wind Speed: 1.1m/s (calm conditions)

Cloud Cover: 96%

Light Frost

Wengen

Mon, Oct 26 · 08:00–08:31

❄️Frost Probability:69%

Medium

Moderate Frost (radiative) at Sunrise

Wengen

Tue, Oct 27 · 06:17–08:00

❄️Frost Probability:84-89%

Low

Moderate Frost (radiative)

Wengen

Tue, Oct 27 · 08:00–08:32

❄️Frost Probability:80%

Low

Moderate Frost (radiative) at Sunrise

Wengen

Fri, Oct 30 · 06:22–08:00

❄️Frost Probability:61-71%

Low

Heavy Frost (radiative) at Sunrise

Wengen

Sat, Oct 31 · 06:23–08:00

❄️Frost Probability:90-91%

High

Heavy Frost (radiative)

Wengen

Sat, Oct 31 · 08:00–08:38

❄️Frost Probability:86%

Medium

+4 more windows in the next 14 days

71-hour requirements breakdown

When available, this detailed table covers only the stated 71-hour horizon (typically 72–168 hours, depending on available hourly data). Opportunity records above span the full 14-day forecast period, so this table does not explain that entire period. Times shown in Europe/Zurich.

Requirements breakdown is temporarily unavailable or expired. This does not mean no opportunities.

Supporting forecast inputs

Additional hourly values for interpreting the forecast and any derived scores. See the separate requirements breakdown for rule logic; missing values are unavailable.

Forecast time (Europe/Zurich)	Dew Point	Surface Temperature	Temperature	Time Window	Total Cloud Coverage	Vapor Pressure Deficit
Fri, Oct 23, 2026Sunrise 07:57 · Sunset 18:27
23:00 Night	-1.2°C	3°C	4.2°C	Unavailable	100%	0.26kPa
Sat, Oct 24, 2026Sunrise 07:58 · Sunset 18:25
24:00 Night	1°C	2.3°C	2.2°C	Unavailable	100%	0.06kPa
01:00 Night	-1.1°C	1.9°C	3.3°C	Unavailable	50%	0.21kPa
02:00 Night	1.1°C	1.5°C	1.4°C	Unavailable	100%	0.01kPa
03:00 Night	-0.2°C	1.4°C	0.7°C	Unavailable	100%	0.04kPa
04:00 Night	0°C	0.4°C	0°C	Unavailable	100%	0kPa
05:00 Night	-0.5°C	0.4°C	0.5°C	Unavailable	100%	0.04kPa
06:00 Night	-1.2°C	0.2°C	1°C	Unavailable	100%	0.1kPa
07:00 Night	-0.8°C	0.2°C	0.6°C	Unavailable	100%	0.06kPa
08:00	-1.2°C	0.1°C	0.6°C	Unavailable	100%	0.08kPa
09:00	-1.3°C	0.1°C	0.6°C	Unavailable	100%	0.08kPa
10:00	-0.7°C	1°C	0.7°C	Unavailable	100%	0.06kPa
11:00	-0.1°C	2.1°C	1.2°C	Unavailable	100%	0.06kPa
12:00	0.4°C	3.1°C	1.4°C	Unavailable	100%	0.05kPa
13:00	0.8°C	3.7°C	1.7°C	Unavailable	100%	0.04kPa
14:00	0.8°C	3.8°C	2.3°C	Unavailable	100%	0.07kPa
15:00	1.1°C	4.2°C	2.3°C	Unavailable	93%	0.06kPa
16:00	1.3°C	3.4°C	2.5°C	Unavailable	93%	0.06kPa
17:00	1°C	3.2°C	2.9°C	Unavailable	100%	0.1kPa
18:00	1.4°C	2.3°C	2.4°C	Unavailable	100%	0.05kPa
19:00 Night	-0.6°C	1.3°C	2.5°C	Unavailable	98%	0.15kPa
20:00 Night	-1.2°C	1.1°C	2.4°C	Unavailable	100%	0.17kPa
21:00 Night	-1.8°C	0.7°C	2.2°C	Unavailable	100%	0.18kPa
22:00 Night	-1.5°C	0.8°C	2.1°C	Unavailable	100%	0.16kPa
23:00 Night	-1.1°C	1.1°C	2.5°C	Unavailable	100%	0.17kPa
Sun, Oct 25, 2026Sunrise 07:00 · Sunset 17:23
24:00 Night	-0.5°C	1.4°C	3°C	Unavailable	100%	0.17kPa
01:00 Night	0.4°C	1.8°C	3.2°C	Unavailable	100%	0.14kPa
02:00 Night	Unavailable	Unavailable	Unavailable	Unavailable	Unavailable	Unavailable
02:00 Night	1.7°C	2.5°C	3.8°C	Unavailable	100%	0.11kPa
03:00 Night	2.4°C	3.1°C	4.5°C	Unavailable	100%	0.12kPa
04:00 Night	3.1°C	3.7°C	5.3°C	Unavailable	100%	0.12kPa
05:00 Night	3.9°C	4.7°C	6.6°C	Unavailable	100%	0.17kPa
06:00 Night	4.9°C	5.5°C	7.4°C	Unavailable	100%	0.16kPa
07:00 Night	5.7°C	6.2°C	8.1°C	Unavailable	100%	0.16kPa
08:00	5.8°C	7.4°C	10°C	Unavailable	99%	0.32kPa
09:00	5.8°C	7.7°C	11°C	Unavailable	100%	0.38kPa
10:00	5.7°C	8.3°C	12°C	Unavailable	100%	0.49kPa
11:00	6.2°C	8.4°C	12°C	Unavailable	100%	0.47kPa
12:00	6.3°C	8.7°C	12°C	Unavailable	100%	0.45kPa
13:00	6.5°C	8.8°C	12°C	Unavailable	100%	0.41kPa
14:00	6.7°C	8.7°C	12°C	Unavailable	92%	0.38kPa
15:00	7.4°C	8.6°C	11°C	Unavailable	100%	0.26kPa
16:00	8°C	8.4°C	9.6°C	Unavailable	100%	0.12kPa
17:00	8.3°C	8.5°C	9.5°C	Unavailable	100%	0.09kPa
18:00 Night	7.8°C	8.1°C	9°C	Unavailable	88%	0.09kPa
19:00 Night	7°C	7.4°C	8.1°C	Unavailable	90%	0.08kPa
20:00 Night	6.1°C	6.8°C	7.2°C	Unavailable	94%	0.07kPa
21:00 Night	5.1°C	5.9°C	6°C	Unavailable	91%	0.06kPa
22:00 Night	4.4°C	5.5°C	5.3°C	Unavailable	80%	0.05kPa
23:00 Night	3.6°C	4.8°C	4.8°C	Unavailable	72%	0.07kPa
Mon, Oct 26, 2026Sunrise 07:01 · Sunset 17:22
24:00 Night	2.6°C	3.5°C	4.2°C	Unavailable	46%	0.09kPa
01:00 Night	1.9°C	1.9°C	3.4°C	Unavailable	40%	0.08kPa
02:00 Night	1.5°C	0.9°C	2.7°C	Unavailable	38%	0.06kPa
03:00 Night	0.9°C	0.4°C	2.5°C	Unavailable	76%	0.08kPa
04:00 Night	0.9°C	0.4°C	1.9°C	Unavailable	89%	0.05kPa
05:00 Night	0.1°C	0.4°C	2.2°C	Unavailable	88%	0.1kPa
06:00 Night	0.3°C	0.5°C	2.1°C	Unavailable	78%	0.09kPa
07:00 Night	-0.6°C	0.5°C	2.5°C	Unavailable	96%	0.15kPa
08:00	-0.9°C	0.3°C	2.2°C	Unavailable	89%	0.14kPa
09:00	-1.6°C	1.7°C	3.3°C	Unavailable	94%	0.23kPa
10:00	-2.3°C	3.7°C	5.3°C	Unavailable	100%	0.37kPa
11:00	1.4°C	6.9°C	6.9°C	Unavailable	100%	0.32kPa
12:00	4.2°C	7.6°C	7.4°C	Unavailable	100%	0.21kPa
13:00	3.4°C	8.4°C	8.3°C	Unavailable	90%	0.32kPa
14:00	3.8°C	8.7°C	8.4°C	Unavailable	100%	0.3kPa
15:00	3.6°C	8°C	7.9°C	Unavailable	92%	0.28kPa
16:00	3.4°C	7.9°C	7.9°C	Unavailable	90%	0.29kPa
17:00	4.8°C	7°C	7.1°C	Unavailable	92%	0.15kPa
18:00 Night	4.8°C	6.3°C	6.8°C	Unavailable	95%	0.13kPa
19:00 Night	3.2°C	6°C	8.1°C	Unavailable	96%	0.31kPa
20:00 Night	3.2°C	5.8°C	7.9°C	Unavailable	92%	0.3kPa
21:00 Night	2.7°C	4.7°C	7.8°C	Unavailable	61%	0.32kPa

How this forecast is evaluated

See which weather signals PhotoWeather uses to identify Morning Frost conditions across Alps. The requirements and hourly values above show how those signals apply at Wengen.

Explore Morning Frost conditions across Alps →

Recorded match history

Completed PhotoWeather forecast matches recorded for this exact rule at Wengen during the last 365 days.

Last 30 days

recorded matching windows · 61% average confidence

Last 90 days

recorded matching windows · 60% average confidence

Last 365 days

121

recorded matching windows · 65% average confidence

Most frequent recorded start hour

07:00 local time, shared by 30 of 121 matches recorded in the last 365 days.

Most represented month

May, with 35 of 121 matches recorded in the last 365 days.

These figures use completed PhotoWeather MatchEvent records from the previous 365 days only. They describe recorded forecast matches, not observations, climatological probability, or a guarantee of future conditions.

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How this forecast is made

Opportunities are threshold-based signals: PhotoWeather checks whether forecast conditions match the rules for a photography scenario. They are planning guidance, not guarantees. Forecasts can change as new model runs arrive, and confidence generally decreases farther into the forecast horizon, so recheck conditions before travelling.

The weather forecast foundation comes through Open-Meteo , which aggregates models from weather agencies. PhotoWeather applies condition-specific thresholds and derived calculations; not every condition uses every model or data input.

How opportunities work → Weather data sources →

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