| Mon May 20 | Tue May 21 | Wed May 22 | Thu May 23 | |
| Tmin 18-06 |
7°C | 9°C | 5°C | 5°C |
| Tmax 06-18 |
13°C | 13°C | 13°C | 11°C |
| 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 Weather Stations - Diss | Distance |
| Wattisham | 29.6 km |
| Norwich Weather Centre | 32.6 km |
| Lakenheath | 36.7 km |
| Mildenhall Royal Air Force | 41.9 km |
| Marham | 48.0 km |
| Weybourne | 65.0 km |
| Cambridge | 65.1 km |
| London Stansted Airport | 80.0 km |
| Holbeach | 85.0 km |
| Shoeburyness Landwick | 92.7 km |
| Southend-on-Sea AP | 93.2 km |
| Manston | 114.5 km |
| Manston South East | 116.2 km |