Rule Cloudscapes

Cloudscapes Forecast for Isle of Lewis, Scotland

Stornoway, Scotland, United Kingdom

Lewis offers the Callanish standing stones, peat moorland, Atlantic beaches and rocky coast, with low cloud and winter darkness supporting moody studies.

Currently

Real-time conditions

Cloud Drama Score

45%

Cloud Cover100%

Wind Gusts5.6m/s

Precipitation Chance39%

Air Pressure1018.9hPa

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/London

Next opportunity

Dramatic Cloud Drama at Dawn

Isle of Lewis

Tue, Jul 21 · 03:00–04:00 · 1h window

Medium confidence

49%

☁️Cloud Drama Score90.6%

Cloud Cover: 44%

Wind Gusts: 7.3m/s

Precipitation Chance: 13%

Air Pressure: 1023.7hPa

Dramatic Cloud Drama at Sunset

Isle of Lewis

Wed, Jul 22 · 21:00–23:00

☁️Cloud Drama Score:80.6-97.5%

Low

Striking Cloud Drama at Dusk

Isle of Lewis

Wed, Jul 22 · 23:00–24:00

☁️Cloud Drama Score:80.6%

Low

Dramatic Cloud Drama

Isle of Lewis

Fri, Jul 24 · 07:00–08:00

☁️Cloud Drama Score:85.8%

Low

Striking Cloud Drama at Sunrise

Isle of Lewis

Sat, Jul 25 · 04:00–05:00

☁️Cloud Drama Score:76.7%

Medium

Striking Cloud Drama at Sunset

Isle of Lewis

Sat, Jul 25 · 20:00–21:00

☁️Cloud Drama Score:76.7%

Low

Dramatic Cloud Drama

Isle of Lewis

Sun, Jul 26 · 11:00–13:00

☁️Cloud Drama Score:79.4-93.1%

Low

+2 more windows in the next 14 days

How this forecast is evaluated

See which weather signals PhotoWeather uses to identify Cloudscapes conditions across Scotland. The requirements and hourly values below show how those signals apply at Isle of Lewis.

Explore Cloudscapes conditions across Scotland →

Recorded match history

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

Last 30 days

recorded matching windows · 65% average confidence

Last 90 days

recorded matching windows · 66% average confidence

Last 365 days

175

recorded matching windows · 68% average confidence

Most frequent recorded start hour

08:00 local time, shared by 18 of 175 matches recorded in the last 365 days.

Most represented month

March, with 41 of 175 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.

Create your own Cloudscapes alerts

Get notified when these conditions match at your own locations.

Get this template

79-hour requirements breakdown

When available, the detailed table below covers only the stated 79-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

1matching hours in the next 79 hoursJump to next match

OR logic: one branch per group is enough

Meets requirement

Misses requirement

Time Europe/London	Cloud Drama Score ≥ 75.0%	Low Clouds ≥ 20.0%	Mid-Level Clouds OR1·B1 ≥ 30.0%	High Clouds OR1·B2 ≥ 40.0%	Visibility ≥ 5000.0m
Sun, Jul 19
06:00	48%	98%	98%	81%	24134m
07:00	56%	99%	41%	95%	24134m
08:00	55%	100%	5.9%	17%	24134m
09:00	60%	100%	49%	59%	24135m
10:00	66%	100%	20%	49%	24135m
11:00	49%	99%	69%	91%	24135m
12:00	44%	100%	60%	97%	24134m
13:00	43%	100%	99%	100%	24134m
14:00	45%	100%	81%	5%	24135m
15:00	47%	100%	96%	5%	24135m
16:00	46%	100%	64%	99%	24134m
17:00	49%	68%	98%	100%	24135m
18:00	50%	67%	5%	0.2%	24135m
19:00	27%	97%	3.6%	0%	24134m
20:00	49%	78%	5%	0.2%	24135m
21:00	60%	100%	5%	11%	24134m
22:00	41%	100%	5%	79%	24134m
23:00	38%	100%	5%	100%	24134m
Mon, Jul 20
24:00	51%	100%	5%	43%	24134m
01:00	62%	100%	5%	36%	24135m
02:00	38%	100%	5%	8.9%	24135m
03:00	30%	100%	5%	1.3%	24134m
04:00	20%	100%	2.4%	0%	24134m
05:00	34%	100%	0.4%	7.7%	24134m
06:00	58%	100%	0%	49%	24135m
07:00	65%	100%	0%	25%	24135m
08:00	28%	100%	0%	1.4%	24134m
09:00	19%	100%	0%	2.6%	24135m
10:00	21%	100%	0%	5%	24135m
11:00	21%	100%	0%	2.5%	24134m
12:00	31%	100%	0%	5%	24134m
13:00	37%	94%	0%	5%	24134m
14:00	58%	47%	0%	5%	24134m
15:00	56%	41%	0%	5%	24134m
16:00	56%	59%	0%	5%	24135m
17:00	59%	72%	0%	5.1%	24134m
18:00	56%	56%	0%	5%	24135m
19:00	62%	61%	4.4%	5%	24135m
20:00	58%	28%	5%	5%	24135m
21:00	32%	7.4%	5%	5%	24134m
22:00	29%	5.3%	5%	5%	24135m
23:00	56%	8.6%	0%	19%	24134m
Tue, Jul 21
24:00	66%	9.5%	0%	55%	24134m
01:00	87%	15%	0%	57%	24135m
02:00	96%	32%	0%	25%	24134m
03:00	91%	41%	3.2%	42%	24134m
04:00	72%	80%	3.2%	11%	24135m
05:00	38%	100%	5%	5%	24134m
06:00	35%	100%	0%	4.7%	24135m
07:00	32%	89%	0%	0%	24135m
08:00	47%	27%	0%	0%	24135m
09:00	40%	83%	0%	0.5%	24134m
10:00	29%	99%	0%	3.9%	24135m
11:00	44%	100%	0%	60%	24135m
12:00	35%	90%	5%	100%	24134m
13:00	45%	65%	99%	100%	24134m
14:00	50%	70%	58%	90%	24134m
15:00	39%	78%	5%	88%	24134m
16:00	33%	60%	5%	100%	24134m
17:00	49%	29%	21%	100%	24135m
18:00	51%	17%	76%	100%	24134m
19:00	57%	33%	100%	100%	24134m
20:00	53%	56%	96%	67%	20011m
21:00	73%	78%	92%	33%	15887m
22:00	46%	100%	88%	0%	11764m
23:00	73%	100%	92%	33%	15887m
Wed, Jul 22
24:00	53%	100%	95%	67%	20011m
01:00	53%	100%	99%	100%	24135m
02:00	53%	99%	68%	80%	24135m
03:00	53%	97%	36%	60%	24135m
04:00	47%	96%	5%	41%	24135m
05:00	42%	95%	5%	53%	24135m
06:00	31%	94%	5%	64%	24135m
07:00	34%	94%	5%	76%	24135m
08:00	44%	88%	3.3%	58%	24135m
09:00	54%	83%	1.7%	39%	24135m
10:00	68%	78%	0%	21%	24135m
11:00	41%	67%	0%	47%	24135m
12:00	30%	56%	0%	74%	24135m

How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity). For OR groups, only one branch is required, so some OR-branch predicates can be ✕ even in a matching hour.

What does Cloud Drama Score 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	Air Pressure hPa	High Clouds %	Mid-Level Clouds %	Precipitation Chance %	Relative Humidity %	Solar Elevation °	Total Cloud Coverage %	Wind Gusts m/s	Wind Speed m/s
Sun, Jul 19 Sunrise 04:51 Sunset 22:10
14:00	1019hPa	5%	80%	39%	91%	52°	100%	5.6m/s	3.7m/s
15:00	1019hPa	5%	96%	39%	89%	49°	100%	6.4m/s	4.5m/s
16:00	1019hPa	99%	64%	39%	85%	44°	100%	7.1m/s	5.4m/s
17:00	1019hPa	100%	98%	53%	81%	37°	100%	7.1m/s	5.1m/s
18:00	1019hPa	0%	5%	68%	77%	30°	66%	7m/s	5.4m/s
19:00	1019hPa	0%	4%	82%	82%	22°	97%	7.6m/s	6.3m/s
20:00	1019hPa	0%	5%	68%	85%	14°	78%	7.7m/s	5.3m/s
21:00	1019hPa	11%	5%	53%	90%	6.8°	100%	7.4m/s	4.2m/s
22:00	1020hPa	79%	5%	39%	93%	0.68°	100%	7.8m/s	4.7m/s
23:00 ☾	1020hPa	100%	5%	53%	93%	-5°	100%	7.7m/s	4.6m/s
Mon, Jul 20 Sunrise 04:51 Sunset 22:10
24:00 ☾	1020hPa	42%	5%	68%	91%	-8.8°	100%	7.8m/s	4.6m/s
01:00 ☾	1020hPa	36%	5%	82%	92%	-11°	100%	7.7m/s	4.5m/s
02:00 ☾	1020hPa	9%	5%	55%	92%	-11°	100%	7.7m/s	4.6m/s
03:00 ☾	1020hPa	1%	5%	27%	92%	-9°	100%	7.7m/s	4.3m/s
04:00 ☾	1020hPa	0%	2%	0%	92%	-5.3°	100%	7.6m/s	4.3m/s
05:00	1020hPa	8%	0%	27%	94%	0.31°	100%	7.5m/s	4.1m/s
06:00	1020hPa	49%	0%	55%	94%	6.3°	100%	7.5m/s	4.3m/s
07:00	1021hPa	25%	0%	82%	92%	13°	100%	7m/s	4.2m/s
08:00	1021hPa	1%	0%	55%	88%	21°	100%	6.5m/s	4.3m/s
09:00	1021hPa	3%	0%	27%	87%	29°	100%	5.9m/s	4.2m/s
10:00	1021hPa	5%	0%	0%	86%	37°	100%	5.4m/s	4.2m/s
11:00	1021hPa	2%	0%	13%	84%	43°	100%	4.9m/s	4.1m/s
12:00	1022hPa	5%	0%	26%	81%	49°	100%	4.8m/s	4.1m/s
13:00	1022hPa	5%	0%	39%	80%	52°	94%	4.9m/s	4.2m/s
14:00	1022hPa	5%	0%	26%	77%	52°	47%	5m/s	4.3m/s
15:00	1022hPa	5%	0%	13%	76%	49°	41%	4.9m/s	4.3m/s
16:00	1023hPa	5%	0%	0%	80%	44°	59%	4.7m/s	4.3m/s
17:00	1023hPa	5%	0%	0%	83%	37°	72%	5.3m/s	4.6m/s
18:00	1023hPa	5%	0%	0%	84%	29°	56%	6.1m/s	4.7m/s
19:00	1023hPa	5%	4%	0%	85%	22°	61%	6.7m/s	4.9m/s
20:00	1024hPa	5%	5%	0%	86%	14°	28%	6.5m/s	4.5m/s
21:00	1024hPa	5%	5%	0%	91%	6.6°	8%	6.7m/s	3.8m/s
22:00	1024hPa	5%	5%	0%	96%	0.54°	7%	5.9m/s	3m/s
23:00 ☾	1024hPa	19%	0%	13%	97%	-5.2°	19%	6.1m/s	3m/s
Tue, Jul 21 Sunrise 04:53 Sunset 22:08
24:00 ☾	1024hPa	55%	0%	26%	97%	-9°	55%	6.4m/s	3m/s
01:00 ☾	1024hPa	56%	0%	39%	97%	-11°	56%	6.4m/s	3m/s
02:00 ☾	1024hPa	25%	0%	26%	98%	-11°	37%	6.6m/s	3.1m/s
03:00 ☾	1024hPa	42%	3%	13%	98%	-9.2°	44%	7.3m/s	3.4m/s
04:00 ☾	1024hPa	10%	3%	0%	98%	-5.5°	80%	7.1m/s	3.3m/s
05:00	1023hPa	5%	5%	13%	88%	0.17°	100%	7.2m/s	4.2m/s
06:00	1024hPa	5%	0%	26%	86%	6.1°	100%	7.2m/s	4.7m/s
07:00	1024hPa	0%	0%	39%	80%	13°	89%	7.1m/s	5m/s
08:00	1024hPa	0%	0%	26%	77%	21°	26%	6.8m/s	5.1m/s
09:00	1024hPa	0%	0%	13%	78%	29°	83%	7.2m/s	5.5m/s
10:00	1024hPa	4%	0%	0%	78%	36°	99%	7.4m/s	5.9m/s
11:00	1024hPa	60%	0%	13%	79%	43°	100%	7m/s	5.6m/s
12:00	1024hPa	100%	5%	26%	77%	49°	100%	7m/s	5.9m/s
13:00	1024hPa	100%	99%	39%	78%	52°	100%	6.8m/s	5.8m/s
14:00	1024hPa	90%	58%	39%	76%	52°	90%	7m/s	6m/s
15:00	1024hPa	88%	5%	39%	77%	49°	89%	7.3m/s	6.2m/s
16:00	1024hPa	100%	5%	39%	77%	44°	100%	7.1m/s	6m/s
17:00	1023hPa	100%	21%	45%	76%	37°	100%	7.4m/s	5.9m/s
18:00	1023hPa	100%	76%	50%	77%	29°	100%	8.2m/s	6.2m/s
19:00	1023hPa	100%	100%	56%	82%	21°	100%	9.4m/s	6.8m/s
20:00	1022hPa	67%	96%	56%	87%	14°	100%	8.2m/s	5.3m/s
21:00	1021hPa	33%	92%	56%	91%	6.5°	100%	7m/s	3.9m/s
22:00	1019hPa	0%	88%	56%	95%	0.39°	100%	5.7m/s	2.4m/s
23:00 ☾	1019hPa	33%	92%	60%	95%	-5.3°	100%	5.8m/s	2.5m/s
Wed, Jul 22 Sunrise 04:55 Sunset 22:06
24:00 ☾	1019hPa	67%	95%	64%	95%	-9.1°	100%	5.9m/s	2.6m/s
01:00 ☾	1019hPa	100%	99%	69%	96%	-11°	100%	6m/s	2.8m/s
02:00 ☾	1019hPa	80%	68%	64%	94%	-11°	99%	5.4m/s	2.7m/s
03:00 ☾	1018hPa	60%	36%	60%	92%	-9.4°	97%	4.7m/s	2.6m/s
04:00 ☾	1018hPa	41%	5%	56%	90%	-5.7°	96%	4.1m/s	2.5m/s
05:00	1018hPa	53%	5%	59%	86%	0.01°	95%	4m/s	2.7m/s
06:00	1018hPa	64%	5%	61%	81%	6°	95%	3.8m/s	2.9m/s
07:00	1018hPa	76%	5%	64%	76%	13°	95%	3.7m/s	3.1m/s
08:00	1018hPa	58%	3%	50%	74%	21°	89%	3.8m/s	3m/s
09:00	1018hPa	39%	2%	36%	72%	29°	83%	3.8m/s	3m/s
10:00	1018hPa	21%	0%	22%	70%	36°	78%	3.9m/s	2.9m/s
11:00	1017hPa	47%	0%	33%	71%	43°	85%	4.1m/s	3.2m/s
12:00	1017hPa	74%	0%	45%	72%	48°	92%	4.3m/s	3.4m/s
13:00	1017hPa	100%	0%	56%	73%	52°	100%	4.4m/s	3.6m/s

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

Jul 19, 2026, 12:54 PM UTC

Get Notified of Opportunities

Create your own custom alerts for this location and more.

Create Free Account