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| CASTAIC CREEK - CASTAIC LAKE (CSKC1) | ||||||||||||||||||
| Latitude: 34.52º N | Longitude: 118.61º W | Elevation: 1515 Feet | ||||||||||||||||
| Location: Los Angeles County in CA | ||||||||||||||||||
| River Group: Southern California | ||||||||||||||||||
| Issuance Time: | Jan 01 2026 at 8:30 AM PST |
| Please Note: | Ensemble forecasts produced by CNRFC only consider meteorological uncertainty and do not account for hydrologic uncertainty. Flow data on this product are unregulated / full natural flow. |
| Monthly Probability Plot |
| Monthly Streamflow Volume (1000s of Acre-Feet) Data Updated: Jan 01 2026 at 8:36 AM PST | ||||||
| Prob | Jan* | Feb | Mar | Apr | May | Jun |
| 10% | 49.1 | 27.8 | 14.5 | 4.6 | 2.0 | 0.8 |
| 25% | 41.6 | 14.6 | 9.3 | 3.7 | 1.6 | 0.7 |
| 50% | 25.8 | 6.5 | 4.5 | 2.2 | 0.9 | 0.4 |
| 75% | 19.9 | 4.4 | 2.4 | 1.1 | 0.5 | 0.2 |
| 90% | 16.0 | 4.0 | 2.1 | 0.9 | 0.4 | 0.2 |
| Mean | + | + | + | + | + | + |
| %Mean | + | + | + | + | + | + |
| Prob | Jul | Aug | Sep | Oct | Nov | Dec |
| 10% | 0.4 | 0.2 | 0.1 | 0.3 | 0.4 | 1.2 |
| 25% | 0.3 | 0.1 | 0.1 | 0.1 | 0.2 | 0.5 |
| 50% | 0.2 | 0.1 | 0.0 | 0.0 | 0.1 | 0.2 |
| 75% | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 |
| 90% | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Mean | + | + | + | + | + | + |
| %Mean | + | + | + | + | + | + |
| Note 1: %Mean is the "Median forecast monthly value (50%)" divided by the "monthly mean" (displayed as a %) | ||||||
| Note 2: For current month, graphic represents remaining forecast only, text represents observed + remaining forecast. | ||||||
| Location Photographs | ||
| ESRI™ Locator Map |
| Official 7 Day National Weather Service Forecast (CAZ088) |
| Today: Rain with a chance of thunderstorms in the morning. Highs around 60. South winds 10 to 20 mph in the afternoon. Tonight: Mostly cloudy. Lows in the mid to upper 40s. Friday: Mostly cloudy. A 20 percent chance of rain in the afternoon. Highs in the lower 60s. Friday Night: Cloudy. A slight chance of rain in the evening, then a chance of rain after midnight. Lows in the upper 40s to mid 50s. Chance of precipitation 40 percent. Saturday: A chance of rain in the morning, then rain in the afternoon. Highs around 60. South winds 10 to 20 mph in the afternoon. Saturday Night: Rain likely in the evening, then a chance of rain after midnight. Lows in the upper 40s to mid 50s. Chance of precipitation 70 percent. Sunday: A chance of rain in the morning, then rain likely in the afternoon. Highs around 60. Chance of precipitation 70 percent. Sunday Night: Rain in the evening, then rain likely after midnight. Lows in the mid 40s to around 50. Monday: Mostly cloudy with a 40 percent chance of rain. Highs around 60. Monday Night: Mostly cloudy with a 50 percent chance of rain. Lows in the lower to mid 40s. Tuesday: Mostly cloudy with a 40 percent chance of rain. Highs around 60. Tuesday Night: Mostly cloudy with a 30 percent chance of rain. Lows in the lower to mid 40s. Wednesday: Partly cloudy. A slight chance of rain in the morning, then a chance of rain in the afternoon. Highs around 60. Chance of precipitation 30 percent. |