| Mon May 20 | Tue May 21 | Wed May 22 | Thu May 23 | |
| Tmin 18-06 |
50°F | 48°F | 42°F | 41°F |
| Tmax 06-18 |
59°F | 57°F | 55°F | 51°F |
| morning 24-06 |
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| a.m. 06-12 |
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| p.m. 12-18 |
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| evening 18-24 |
| Nearby Forecast Locations - Harlech | Distance |
| Barmouth | 10.3 km |
| Gwynedd | 14.0 km |
| Llyn Trawsfynydd | 16.6 km |
| Porthmadog | 22.4 km |
| Abersoch | 25.9 km |
| Forecast: Harlech Region Scattered clouds and sunny spells; both will be present in the coming days. But on Thursday rain is to be expected. From 14 degrees on Tuesday the daily high will go down to 9 degrees on Thursday. |