 |
 Current Costa Mesa Weather Conditions |
Updated September 15th at 1:53 am |
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| Overcast |
| Temperature: | 70°F |
Dew Point: | 63°F |
| Barometer: | 29.86 inHg |
Wind: | N 9 Mph |
| Humidity: | 77.9% |
Visibility: | 0M |
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| Costa Mesa Weather Forecast Summary |
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Today
Sep 15th
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Tuesday
Sep 16th
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Wednesday
Sep 17th
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Thursday
Sep 18th
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Friday
Sep 19th
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 |
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 |
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Sunny |
Cloudy |
Cloudy |
Mostly Cloudy with Showers |
Mostly Cloudy with Showers |
86°F
|
88°F
66°F |
80°F
68°F |
78°F
69°F |
78°F
69°F |
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| Costa Mesa Detailed Weather Forecast |
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| Monday, September 15th, 2025 |
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Overnight |
Temperature: 65°F |
| Clear. |
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Morning |
Temperature: 84°F |
| Sunny. |
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Afternoon |
Temperature: 74°F |
| Sunny. |
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Evening |
Temperature: 66°F |
| Clear. |
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| Tuesday, September 16th, 2025 |
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Overnight |
Temperature: 73°F |
| Clear. |
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Morning |
Temperature: 88°F |
| Sunny. Windy at times. |
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Afternoon |
Temperature: 76°F |
| Cloudy. |
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Evening |
Temperature: 67°F |
| Cloudy. |
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| Wednesday, September 17th, 2025 |
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Overnight |
Temperature: 70°F |
| Cloudy. |
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Morning |
Temperature: 78°F |
| Cloudy. |
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Afternoon |
Temperature: 78°F |
| Cloudy. |
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Evening |
Temperature: 72°F |
| Cloudy with a chance of showers. |
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| Thursday, September 18th, 2025 |
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Overnight |
Temperature: 74°F |
| Clear with cloudy periods with a chance of showers. |
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Morning |
Temperature: 78°F |
| Sunny with cloudy periods with showers likely. Slight chance of a thunderstorm. |
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Afternoon |
Temperature: 73°F |
| Sunny with cloudy periods with a few showers. Slight chance of a thunderstorm. |
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Evening |
Temperature: 69°F |
| Clear with cloudy periods with showers likely. Slight chance of a thunderstorm. |
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| Friday, September 19th, 2025 |
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Overnight |
Temperature: 71°F |
| Cloudy with clear periods with showers likely. |
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Morning |
Temperature: 76°F |
| A mix of cloud and sun with a chance of showers. Slight chance of a thunderstorm. |
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Afternoon |
Temperature: 75°F |
| Mostly sunny with a chance of showers. Slight chance of a thunderstorm. |
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Evening |
Temperature: 71°F |
| Clear. |
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| Saturday, September 20th, 2025 |
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Overnight |
Temperature: 71°F |
| Clear. |
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Morning |
Temperature: 80°F |
| Sunny. Windy at times. |
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Afternoon |
Temperature: 75°F |
| Sunny. |
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Evening |
Temperature: 71°F |
| Clear. |
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| Sunday, September 21st, 2025 |
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Overnight |
Temperature: 70°F |
| Clear with cloudy periods. |
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Morning |
Temperature: 81°F |
| Sunny. Windy at times. |
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Afternoon |
Temperature: 76°F |
| Sunny. |
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Evening |
Temperature: 69°F |
| Clear. |
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| Monday, September 22nd, 2025 |
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Overnight |
Temperature: 69°F |
| Clear. |
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Morning |
Temperature: 77°F |
| Sunny with cloudy periods with a chance of showers. |
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Afternoon |
Temperature: 72°F |
| Sunny with a slight chance of showers. |
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Evening |
Temperature: 64°F |
| Clear. |
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| Tuesday, September 23rd, 2025 |
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Overnight |
Temperature: 64°F |
| Clear. |
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Morning |
Temperature: 76°F |
| Sunny. Windy at times. |
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Afternoon |
Temperature: 73°F |
| Sunny. |
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Evening |
Temperature: 67°F |
| Clear. |
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