| Sat May 18 | Sun May 19 | Mon May 20 | Tue May 21 | |
| Tmin 18-06 |
7°C | 9°C | 9°C | 11°C |
| Tmax 06-18 |
23°C | 26°C | 25°C | 22°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 Forecast Locations - Santa Maria | Distance |
| Nipomo | 13.3 km |
| Lompoc AFB | 23.8 km |
| Arroyo Grande | 25.8 km |
| Lompoc Airport | 26.0 km |
| Oceano | 26.1 km |
| Grover Beach | 28.5 km |
| Forecast: Santa Maria Region The sun is shining and the sky is blue A raincoat is needless this day. With a high around 21 degrees it's warm. On Sunday a fresh wind from the northwest. |