Rule Morning Frost

Morning Frost Forecast for Glencoe, Scotland

Fort William, Scotland, United Kingdom

Glencoe’s steep volcanic ridges funnel the eye through a narrow glen, with waterfalls, foreground rivers and passing mist adding depth and movement.

Currently

Real-time conditions

Frost Probability

Soil Temperature11.9°C

Dew Point10.6°C (moderate dew point)

Wind Speed2.6m/s (calm conditions)

Cloud Cover100%

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/London

No opportunities in the next 14 days

See which requirements block the most forecast hours below.

Most common blockers (80-hour forecast)

Frost Probability100% of hours
Time Window88% of hours
Wind Speed68% of hours

How this forecast is evaluated

See which weather signals PhotoWeather uses to identify Morning Frost conditions across Scotland. The requirements and hourly values below show how those signals apply at Glencoe.

Explore Morning Frost conditions across Scotland →

Recorded match history

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

Last 30 days

recorded matching windows

Last 90 days

recorded matching windows

Last 365 days

recorded matching windows · 68% average confidence

Only 6 completed matches are recorded in the last 365 days—insufficient history to identify a reliable typical start time or month.

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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80-hour requirements breakdown

When available, the detailed table below covers only the stated 80-hour horizon (typically 72–168 hours, depending on available hourly data). Opportunity records above span the next 14 days, so this table does not explain that entire 14-day period.

What passed or failed, hour by hour

0matching hours in the next 80 hours

AND logic: all conditions required

Meets requirement

Misses requirement

Time Europe/London	Time Window Sunrise -45m to +90m	Frost Probability ≥ 60.0%	Wind Speed ≤ 1.5m/s
Tue, Aug 18
06:00	✓	0%	2.7m/s
07:00	✓	0%	2.4m/s
08:00	✕	0%	2.6m/s
09:00	✕	0%	2.8m/s
10:00	✕	0%	2.4m/s
11:00	✕	0%	2.6m/s
12:00	✕	0%	2.1m/s
13:00	✕	0%	2.7m/s
14:00	✕	0%	2.6m/s
15:00	✕	0%	2.6m/s
16:00	✕	0%	2.5m/s
17:00	✕	0%	2.5m/s
18:00	✕	0%	2.5m/s
19:00	✕	0%	2m/s
20:00	✕	0%	2.1m/s
21:00	✕	0%	2.1m/s
22:00	✕	0%	2.1m/s
23:00	✕	0%	2.1m/s
Wed, Aug 19
24:00	✕	0%	1.9m/s
01:00	✕	0%	1.6m/s
02:00	✕	0%	1.6m/s
03:00	✕	0%	1.4m/s
04:00	✕	0%	1.4m/s
05:00	✓	0%	1.5m/s
06:00	✓	0%	1.6m/s
07:00	✓	0%	1.3m/s
08:00	✕	0%	0.98m/s
09:00	✕	0%	0.97m/s
10:00	✕	0%	0.95m/s
11:00	✕	0%	0.9m/s
12:00	✕	0%	0.76m/s
13:00	✕	0%	0.61m/s
14:00	✕	0%	0.7m/s
15:00	✕	0%	1.2m/s
16:00	✕	0%	1.6m/s
17:00	✕	0%	1.9m/s
18:00	✕	0%	2.3m/s
19:00	✕	0%	2.4m/s
20:00	✕	0%	2.7m/s
21:00	✕	0%	2.8m/s
22:00	✕	0%	2.6m/s
23:00	✕	0%	2.5m/s
Thu, Aug 20
24:00	✕	0%	2.5m/s
01:00	✕	0%	2.5m/s
02:00	✕	0%	2.4m/s
03:00	✕	0%	2.3m/s
04:00	✕	0%	2.2m/s
05:00	✓	0%	2.2m/s
06:00	✓	0%	2.1m/s
07:00	✓	0%	2m/s
08:00	✕	0%	2m/s
09:00	✕	0%	2.1m/s
10:00	✕	0%	2.3m/s
11:00	✕	0%	1.8m/s
12:00	✕	0%	1.6m/s
13:00	✕	0%	1.5m/s
14:00	✕	0%	1.8m/s
15:00	✕	0%	2m/s
16:00	✕	0%	1.9m/s
17:00	✕	0%	1.8m/s
18:00	✕	0%	2.1m/s
19:00	✕	0%	2.1m/s
20:00	✕	0%	1.8m/s
21:00	✕	0%	1.5m/s
22:00	✕	0%	1.2m/s
23:00	✕	0%	1.1m/s
Fri, Aug 21
24:00	✕	0%	0.99m/s
01:00	✕	2.1%	0.9m/s
02:00	✕	0%	0.97m/s
03:00	✕	0%	1m/s
04:00	✕	0%	1.1m/s
05:00	✓	0%	1.2m/s
06:00	✓	0%	1.3m/s
07:00	✓	0%	1.4m/s
08:00	✕	0%	1.5m/s
09:00	✕	0%	1.6m/s
10:00	✕	0%	1.7m/s
11:00	✕	0%	1.7m/s
12:00	✕	0%	1.8m/s
13:00	✕	0%	1.9m/s

How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity).

What does Frost Probability mean?

Inputs that drive the score

This derived score summarizes multiple raw weather signals. The table below shows the supporting inputs hour by hour, so you can see what's pushing the score up or down.

Time Europe/London	Dew Point °C	Surface Temperature °C	Temperature °C	Time Window	Total Cloud Coverage %	Vapor Pressure Deficit kPa
Tue, Aug 18 Sunrise 05:54 Sunset 20:52
15:00	11°C	12°C	12°C	-	100%	0.09kPa
16:00	10°C	12°C	13°C	-	100%	0.21kPa
17:00	10°C	12°C	12°C	-	95%	0.21kPa
18:00	10°C	12°C	12°C	-	100%	0.18kPa
19:00	9.9°C	12°C	11°C	-	100%	0.1kPa
20:00	9.5°C	12°C	10°C	-	100%	0.07kPa
21:00 ☾	9.3°C	12°C	10°C	-	100%	0.06kPa
22:00 ☾	9.2°C	12°C	9.8°C	-	100%	0.05kPa
23:00 ☾	9.1°C	12°C	9.7°C	-	100%	0.04kPa
Wed, Aug 19 Sunrise 05:54 Sunset 20:52
24:00 ☾	9°C	11°C	9.4°C	-	56%	0.04kPa
01:00 ☾	8.1°C	11°C	8.5°C	-	88%	0.03kPa
02:00 ☾	8.7°C	11°C	9.1°C	-	69%	0.03kPa
03:00 ☾	8.4°C	11°C	8.8°C	-	33%	0.03kPa
04:00 ☾	7.6°C	11°C	8.3°C	-	67%	0.04kPa
05:00 ☾	7.9°C	11°C	8.6°C	-	98%	0.06kPa
06:00	8.3°C	11°C	9.1°C	-	99%	0.06kPa
07:00	8.5°C	10°C	9.2°C	-	100%	0.05kPa
08:00	8.6°C	10°C	9.2°C	-	100%	0.05kPa
09:00	8.8°C	10°C	9.5°C	-	100%	0.05kPa
10:00	8.9°C	10°C	9.8°C	-	100%	0.07kPa
11:00	9°C	10°C	10°C	-	100%	0.08kPa
12:00	9°C	10°C	10°C	-	100%	0.09kPa
13:00	9°C	10°C	10°C	-	100%	0.1kPa
14:00	9°C	10°C	10°C	-	100%	0.12kPa
15:00	9.1°C	10°C	11°C	-	100%	0.14kPa
16:00	9.1°C	11°C	12°C	-	100%	0.22kPa
17:00	9.1°C	11°C	13°C	-	100%	0.31kPa
18:00	9°C	11°C	13°C	-	98%	0.31kPa
19:00	9.5°C	11°C	12°C	-	95%	0.19kPa
20:00	9.3°C	11°C	10°C	-	100%	0.09kPa
21:00 ☾	9°C	11°C	9.7°C	-	100%	0.05kPa
22:00 ☾	8.7°C	11°C	9.2°C	-	100%	0.04kPa
23:00 ☾	8.2°C	11°C	8.8°C	-	100%	0.05kPa
Thu, Aug 20 Sunrise 05:56 Sunset 20:50
24:00 ☾	7.6°C	11°C	8.4°C	-	99%	0.06kPa
01:00 ☾	7°C	10°C	7.8°C	-	100%	0.05kPa
02:00 ☾	6.3°C	10°C	7°C	-	87%	0.05kPa
03:00 ☾	5.5°C	10°C	6.1°C	-	23%	0.04kPa
04:00 ☾	4.8°C	9.8°C	5.2°C	-	42%	0.02kPa
05:00 ☾	4.6°C	9.5°C	5°C	-	53%	0.02kPa
06:00	4.5°C	9.3°C	4.9°C	-	57%	0.02kPa
07:00	5°C	9.1°C	5.6°C	-	24%	0.03kPa
08:00	5.7°C	9°C	7.3°C	-	46%	0.1kPa
09:00	6°C	9.1°C	8.8°C	-	61%	0.2kPa
10:00	6.1°C	9.2°C	9.9°C	-	99%	0.27kPa
11:00	6.2°C	9.2°C	9.3°C	-	100%	0.22kPa
12:00	6.3°C	9.4°C	9.7°C	-	100%	0.25kPa
13:00	6.4°C	9.7°C	12°C	-	67%	0.43kPa
14:00	6.5°C	10°C	13°C	-	75%	0.55kPa
15:00	6.4°C	10°C	13°C	-	97%	0.53kPa
16:00	6.4°C	10°C	12°C	-	99%	0.47kPa
17:00	6.5°C	10°C	12°C	-	99%	0.44kPa
18:00	7.1°C	11°C	12°C	-	100%	0.35kPa
19:00	7.6°C	11°C	11°C	-	99%	0.25kPa
20:00	5.9°C	9.9°C	9.1°C	-	68%	0.22kPa
21:00 ☾	4.2°C	9.3°C	7.4°C	-	38%	0.2kPa
22:00 ☾	2.5°C	8.7°C	5.7°C	-	7%	0.18kPa
23:00 ☾	2.7°C	8.4°C	5.6°C	-	31%	0.17kPa
Fri, Aug 21 Sunrise 05:58 Sunset 20:47
24:00 ☾	2.8°C	8.2°C	5.4°C	-	56%	0.15kPa
01:00 ☾	2.9°C	8°C	5.2°C	-	80%	0.13kPa
02:00 ☾	3.5°C	8.1°C	6.9°C	-	78%	0.21kPa
03:00 ☾	3.9°C	8.2°C	8.6°C	-	76%	0.31kPa
04:00 ☾	4.2°C	8.3°C	10°C	-	73%	0.42kPa
05:00 ☾	4°C	8.5°C	11°C	-	81%	0.46kPa
06:00 ☾	3.8°C	8.7°C	11°C	-	89%	0.51kPa
07:00	3.5°C	9°C	11°C	-	96%	0.55kPa
08:00	3.9°C	9.2°C	12°C	-	98%	0.58kPa
09:00	4.3°C	9.5°C	12°C	-	99%	0.61kPa
10:00	4.7°C	9.8°C	13°C	-	100%	0.65kPa
11:00	5.3°C	9.9°C	13°C	-	95%	0.57kPa
12:00	5.8°C	10°C	12°C	-	89%	0.5kPa
13:00	6.3°C	10°C	12°C	-	84%	0.43kPa
14:00	5.9°C	10°C	10°C	-	89%	0.32kPa

How to read: these inputs help produce the derived score; they are not requirements by themselves.

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 →

Forecast generated

Aug 18, 2026, 1:26 PM UTC

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