Meall nan Tarmachan weather tomorrow, this weekend and 14-day summit forecast
1,044 m · Perth and Kinross
Meall nan Tarmachan is a 1044m Munro above Loch Tay, best known for the knobbly Tarmachan Ridge traverse west over Meall Garbh.
Meall nan Tarmachan today (updated 20:32, 27 Oct): up to 5°C at the summit, feeling as cold as -4°C, summit wind 38 mph gusting 48 mph, 100% chance of rain. A marginal day for the hills. Best day this week: Saturday, summit gusts 8 mph.
Meall nan Tarmachan weather today, tomorrow and this weekend
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Marginal Today Wednesday 28 October
Moderate rain, up to 5°C at the summit, feeling as cold as -4°C, summit wind 38 mph gusting 48 mph, 100% chance of rain. Rated Marginal. Sunrise 07:17, sunset 16:44.
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Marginal Tomorrow Thursday 29 October
Moderate drizzle, up to 6°C at the summit, feeling as cold as 0°C, summit wind 35 mph gusting 43 mph, 33% chance of rain. Rated Marginal. Sunrise 07:19, sunset 16:42.
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Good Saturday 31 October
Fog, up to 5°C at the summit, feeling as cold as -5°C, summit wind 7 mph gusting 8 mph, 31% chance of rain. Rated Good. Sunrise 07:23, sunset 16:37.
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Marginal Sunday 1 November
Overcast, up to 5°C at the summit, feeling as cold as -8°C, summit wind 7 mph gusting 9 mph, 22% chance of rain. Rated Marginal. Sunrise 07:26, sunset 16:35.
Best day of the next seven: Saturday 31 October, with summit gusts around 8 mph and a 31% chance of rain. Peakify picks it as the day with the lightest gusts, after a penalty for any chance of rain over 40%.
Meall nan Tarmachan 14-day summit weather forecast
Every day the cache holds from today, at summit height. Temperatures in °C, wind and gusts in mph, rain as the day's highest chance. Days 8 to 14 are marked less certain: forecasts lose skill quickly beyond a week, so read them as a trend.
| Day | Verdict | Weather | High / low | Feels like | Wind / gust | Rain | Snow |
|---|---|---|---|---|---|---|---|
| Today | Marginal | Moderate rain | 5° / 2° | -4° | 38 / 48 mph | 100% | — |
| Tomorrow | Marginal | Moderate drizzle | 6° / 4° | 0° | 35 / 43 mph | 33% | — |
| Fri 30 Oct | Marginal | Light drizzle | 6° / 3° | -1° | 37 / 47 mph | 39% | — |
| Sat 31 Oct | Good | Fog | 5° / -3° | -5° | 7 / 8 mph | 31% | — |
| Sun 1 Nov | Marginal | Overcast | 5° / -5° | -8° | 7 / 9 mph | 22% | — |
| Mon 2 Nov | Marginal | Clear sky | 3° / -6° | -10° | 12 / 16 mph | 2% | — |
| Tue 3 Nov | Good | Fog | 4° / -4° | -7° | 15 / 19 mph | 3% | — |
| Days 8 to 13: less certain | |||||||
| Wed 4 Nov | Good (less certain) | Fog | 3° / 1° | -2° | 11 / 14 mph | 6% | — |
| Thu 5 Nov | Good (less certain) | Overcast | 3° / -1° | -3° | 13 / 16 mph | 4% | — |
| Fri 6 Nov | Good (less certain) | Fog | 2° / -3° | -5° | 13 / 16 mph | 12% | — |
| Sat 7 Nov | Marginal (less certain) | Fog | 2° / -5° | -7° | 26 / 33 mph | 18% | — |
| Sun 8 Nov | Good (less certain) | Light drizzle | 2° / -2° | -4° | 23 / 29 mph | 24% | — |
| Mon 9 Nov | Good (less certain) | Fog | 1° / -3° | -5° | 21 / 27 mph | 18% | — |
The cached forecast has no freezing level; snow is the model's summit snowfall for the day.
How the Meall nan Tarmachan summit forecast is made
The numbers come from the Open-Meteo weather model for the summit's position at 1,044 m, in the mountain's local time. A valley forecast would understate the summit badly, so the wind is worked out at summit height from the model's upper-air winds: the standard 10 m wind sits over the model's smoothed ground and is roughly half what an exposed top gets.
Peakify rates each day Good, Marginal or Poor from the forecast summit wind, gusts, chance of rain and wind chill. Wind of 40 mph or gusts of 65 mph make it Poor; wind of 25 mph, gusts of 45 mph, a 60% chance of rain or a feels-like temperature of -8°C or below make it Marginal. The verdict is the same one shown on the main peak page and in the Peakify app.
"Feels like" is the coldest apparent temperature of the day, which combines air temperature, wind and humidity. On a windy summit it can be well below the air temperature, so pack for that figure, not the high.
For a second opinion before a big day, read the Met Office mountain forecast or MWIS for the area. They are written by forecasters and cover hazards such as cloud on the tops and visibility that a model table can't.
Questions about Meall nan Tarmachan
What is the Meall nan Tarmachan weather tomorrow?
Thursday 29 October: moderate drizzle, up to 6°C at the summit, feeling as cold as 0°C, summit wind 35 mph gusting 43 mph, 33% chance of rain. Rated Marginal.
What is the Meall nan Tarmachan weather this weekend?
Saturday 31 October: fog, up to 5°C at the summit, feeling as cold as -5°C, summit wind 7 mph gusting 8 mph, 31% chance of rain. Rated Good. Sunday 1 November: overcast, up to 5°C at the summit, feeling as cold as -8°C, summit wind 7 mph gusting 9 mph, 22% chance of rain. Rated Marginal.
Is there a 14-day Meall nan Tarmachan weather forecast?
Yes. This page lists up to 14 days of summit weather for Meall nan Tarmachan, each with a Good, Marginal or Poor verdict. Days 8 to 14 are less certain: use them to spot a settled or stormy spell, not to plan a day.
Where does the Meall nan Tarmachan summit forecast come from?
From the Open-Meteo weather model for the summit's position at 1,044 m, refreshed every few hours. Wind is worked out at summit height from the model's upper-air winds, because the standard 10 m wind is roughly half what a summit gets.