Cowlitz River at Castle Rock
0.5 mi- Level
- 33.7 ft
- Flow
- 4,120 cfs
Forecast peak 33.8 ft Thu 5 AM
Reading from Sat 10:30 AM · NWS gauge page
Appearance
Observed 11:15 AM PDT at KKLS
Sunny and 46°8°, rain tomorrow ~5 AM–11 PM (77%).
Today: low 39°4° (likely 33°1° to 39°4°), high 61°16° (likely 56°13° to 61°16°).
Now 46°8°
Sunny
No precipitation expected in the next 2 hours.
From forecast models
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sat 11a | Cloudy | 45°7° (likely 45°7° to 49°9°) | 45°7° | 0% | 1 mph2 km/h from S, gusts 6 mph9 km/h | 93% | 84% | 1 |
| Sat 12p | Cloudy | 49°9° (likely 49°9° to 52°11°) | 49°9° | 0% | 1 mph2 km/h from S, gusts 7 mph11 km/h | 79% | 83% | 2 |
| Sat 1p | Cloudy | 55°13° (likely 53°12° to 56°13°) | 55°13° | 0% | 1 mph2 km/h from S, gusts 6 mph10 km/h | 64% | 82% | 2 |
| Sat 2p | Cloudy | 58°14° (likely 55°13° to 58°14°) | 58°14° | 0% | 1 mph2 km/h from SSW, gusts 7 mph12 km/h | 55% | 83% | 2 |
| Sat 3p | Cloudy | 59°15° (likely 56°13° to 60°16°) | 59°15° | 0% | 1 mph2 km/h from S, gusts 8 mph12 km/h | 48% | 84% | 1 |
| Sat 4p | Cloudy | 60°16° (likely 56°13° to 61°16°) | 60°16° | 0% | 0 mph0 km/h, gusts 8 mph12 km/h | 46% | 83% | 1 |
| Sat 5p | Cloudy | 59°15° (likely 54°12° to 59°15°) | 59°15° | 0% | 0 mph0 km/h, gusts 8 mph13 km/h | 48% | 82% | 1 |
| Sat 6p | Cloudy | 56°13° (likely 51°11° to 56°13°) | 56°13° | 0% | 0 mph0 km/h, gusts 6 mph10 km/h | 56% | 78% | 0 |
| Sat 7p | Cloudy | 52°11° (likely 49°9° to 52°11°) | 52°11° | 0% | 0 mph0 km/h, gusts 5 mph7 km/h | 70% | 76% | 0 |
| Sat 8p | Cloudy | 46°8° (likely 46°8° to 49°9°) | 46°8° | 0% | 1 mph2 km/h from SSE, gusts 5 mph8 km/h | 79% | 75% | 0 |
| Sat 9p | Cloudy | 45°7° (likely 45°7° to 47°8°) | 45°7° | 0% | 1 mph2 km/h from SSE, gusts 6 mph10 km/h | 85% | 76% | 0 |
| Sat 10p | Cloudy | 43°6° (likely 43°6° to 47°8°) | 43°6° | 0% | 1 mph2 km/h from SSE, gusts 7 mph11 km/h | 91% | 78% | 0 |
| Sat 11p | Cloudy | 42°6° (likely 42°6° to 47°8°) | 42°6° | 5%, 0.02 in0.5 mm | 2 mph3 km/h from S, gusts 7 mph11 km/h | 91% | 81% | 0 |
| Sun 12a | Cloudy | 42°6° (likely 42°6° to 47°8°) | 40°4° | 5%, 0.02 in0.5 mm | 3 mph5 km/h from S, gusts 6 mph10 km/h | 89% | 83% | 0 |
| Sun 1a | Cloudy | 42°6° (likely 42°6° to 47°8°) | 40°4° | 5%, 0.02 in0.5 mm | 3 mph5 km/h from S, gusts 5 mph8 km/h | 88% | 85% | 0 |
| Sun 2a | Cloudy | 41°5° (likely 41°5° to 46°8°) | 38°3° | 10%, 0.02 in0.5 mm | 5 mph8 km/h from S, gusts 6 mph10 km/h | 86% | 94% | 0 |
| Sun 3a | Rain | 41°5° (likely 41°5° to 46°8°) | 38°3° | 20%, 0.02 in0.5 mm | 5 mph8 km/h from S, gusts 8 mph12 km/h | 84% | 81% | 0 |
| Sun 4a | Rain | 41°5° (likely 41°5° to 47°8°) | 38°3° | 20%, 0.02 in0.5 mm | 5 mph8 km/h from S, gusts 8 mph13 km/h | 87% | 52% | 0 |
| Sun 5a | Rain | 41°5° (likely 41°5° to 49°9°) | 38°3° | 70%, 0.17 in4.3 mm | 5 mph8 km/h from S, gusts 8 mph14 km/h | 87% | 74% | 0 |
| Sun 6a | Rain | 40°4° (likely 40°4° to 49°9°) | 37°3° | 70%, 0.17 in4.3 mm | 5 mph8 km/h from S, gusts 10 mph17 km/h | 90% | 99% | 0 |
| Sun 7a | Rain | 40°4° (likely 40°4° to 49°9°) | 37°3° | 70%, 0.17 in4.3 mm | 5 mph8 km/h from S, gusts 12 mph19 km/h | 95% | 100% | 0 |
| Sun 8a | Rain | 39°4° (likely 39°4° to 48°9°) | 36°2° | 70%, 0.17 in4.3 mm | 5 mph8 km/h from S, gusts 16 mph25 km/h | 100% | 100% | 0 |
| Sun 9a | Rain | 41°5° (likely 41°5° to 49°9°) | 38°3° | 70%, 0.17 in4.3 mm | 5 mph8 km/h from S, gusts 15 mph24 km/h | 100% | 100% | 0 |
| Sun 10a | Rain | 44°7° (likely 44°7° to 49°9°) | 41°5° | 60%, 0.17 in4.3 mm | 5 mph8 km/h from S, gusts 15 mph24 km/h | 100% | 100% | 0 |
| Sun 11a | Rain | 46°8° (likely 46°8° to 50°10°) | 44°7° | 80%, 0.21 in5.3 mm | 5 mph8 km/h from S, gusts 15 mph24 km/h | 100% | 100% | 0 |
| Sun 12p | Rain | 48°9° (likely 48°9° to 51°11°) | 46°8° | 70%, 0.21 in5.3 mm | 5 mph8 km/h from S, gusts 15 mph24 km/h | 97% | 97% | 0 |
| Sun 1p | Rain | 51°11° (likely 49°9° to 53°12°) | 51°11° | 70%, 0.21 in5.3 mm | 5 mph8 km/h from S, gusts 14 mph23 km/h | 87% | 93% | 1 |
| Sun 2p | Rain | 53°12° (likely 50°10° to 53°12°) | 53°12° | 60%, 0.21 in5.3 mm | 3 mph5 km/h from S, gusts 17 mph27 km/h | 83% | 89% | 1 |
| Sun 3p | Drizzle | 55°13° (likely 51°11° to 55°13°) | 55°13° | 60%, 0.21 in5.3 mm | 3 mph5 km/h from S, gusts 18 mph29 km/h | 77% | 87% | 1 |
| Sun 4p | Rain | 56°13° (likely 51°11° to 56°13°) | 56°13° | 70%, 0.21 in5.3 mm | 3 mph5 km/h from S, gusts 17 mph28 km/h | 75% | 90% | 0 |
| Sun 5p | Cloudy | 55°13° (likely 51°11° to 55°13°) | 55°13° | 60%, 0.06 in1.5 mm | 2 mph3 km/h from S, gusts 18 mph30 km/h | 76% | 97% | 0 |
| Sun 6p | Cloudy | 54°12° (likely 50°10° to 54°12°) | 54°12° | 50%, 0.06 in1.5 mm | 2 mph3 km/h from S, gusts 18 mph29 km/h | 80% | 96% | 0 |
| Sun 7p | Cloudy | 51°11° (likely 50°10° to 52°11°) | 51°11° | 60%, 0.06 in1.5 mm | 2 mph3 km/h from S, gusts 16 mph25 km/h | 94% | 61% | 0 |
| Sun 8p | Cloudy | 48°9° (likely 48°9° to 52°11°) | 47°8° | 40%, 0.06 in1.5 mm | 3 mph5 km/h from SSE, gusts 15 mph24 km/h | 100% | 88% | 0 |
| Sun 9p | Rain | 48°9° (likely 48°9° to 52°11°) | 47°8° | 50%, 0.06 in1.5 mm | 3 mph5 km/h from SSE, gusts 18 mph28 km/h | 100% | 83% | 0 |
| Sun 10p | Cloudy | 47°8° (likely 47°8° to 51°11°) | 46°8° | 70%, 0.06 in1.5 mm | 3 mph5 km/h from SSE, gusts 18 mph28 km/h | 100% | 85% | 0 |
| Sun 11p | Rain | 47°8° (likely 47°8° to 51°11°) | 44°7° | 60%, 0.03 in0.8 mm | 6 mph10 km/h from SSE, gusts 17 mph27 km/h | 100% | 86% | 0 |
| Mon 12a | Cloudy | 46°8° (likely 46°8° to 51°11°) | 43°6° | 10%, 0.03 in0.8 mm | 6 mph10 km/h from SSE, gusts 16 mph26 km/h | 100% | 83% | 0 |
| Mon 1a | Rain | 46°8° (likely 46°8° to 52°11°) | 43°6° | 20%, 0.03 in0.8 mm | 6 mph10 km/h from SSE, gusts 17 mph28 km/h | 100% | 100% | 0 |
| Mon 2a | Rain | 46°8° (likely 46°8° to 52°11°) | 44°7° | 60%, 0.03 in0.8 mm | 5 mph8 km/h from SSE, gusts 15 mph24 km/h | 100% | 98% | 0 |
| Mon 3a | Drizzle | 45°7° (likely 45°7° to 52°11°) | 43°6° | 80%, 0.03 in0.8 mm | 5 mph8 km/h from SSE, gusts 16 mph26 km/h | 100% | 100% | 0 |
| Mon 4a | Rain | 45°7° (likely 45°7° to 52°11°) | 43°6° | 70%, 0.03 in0.8 mm | 5 mph8 km/h from SSE, gusts 16 mph26 km/h | 100% | 99% | 0 |
| Mon 5a | Drizzle | 45°7° (likely 45°7° to 51°11°) | 43°6° | 60%, 0.02 in0.5 mm | 5 mph8 km/h from SE, gusts 14 mph23 km/h | 100% | 97% | 0 |
| Mon 6a | Cloudy | 45°7° (likely 45°7° to 52°11°) | 43°6° | 60%, 0.02 in0.5 mm | 5 mph8 km/h from SE, gusts 10 mph16 km/h | 100% | 96% | 0 |
| Mon 7a | Rain | 45°7° (likely 45°7° to 51°11°) | 43°6° | 60%, 0.02 in0.5 mm | 5 mph8 km/h from SE, gusts 9 mph15 km/h | 100% | 96% | 0 |
| Mon 8a | Rain | 44°7° (likely 44°7° to 51°11°) | 42°6° | 60%, 0.02 in0.5 mm | 3 mph5 km/h from ESE, gusts 9 mph14 km/h | 100% | 96% | 0 |
| Mon 9a | Rain | 46°8° (likely 46°8° to 52°11°) | 45°7° | 60%, 0.02 in0.5 mm | 3 mph5 km/h from ESE, gusts 9 mph14 km/h | 100% | 96% | 0 |
| Mon 10a | Cloudy | 47°8° (likely 47°8° to 54°12°) | 46°8° | 60%, 0.02 in0.5 mm | 3 mph5 km/h from ESE, gusts 9 mph14 km/h | 100% | 95% | 1 |
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
70% chance · 0.27 in6.9 mm
Official NWS forecast
Today: Mostly cloudy. High near 61, with temperatures falling to around 59 in the afternoon. South southwest wind around 1 mph.
Tonight: Rain likely after 3am. Mostly cloudy. Low around 39, with temperatures rising to around 41 overnight. South southeast wind 0 to 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
80% chance · 1.1 in27 mm
Afternoon
noon–6 PM
70% chance · 1.1 in28 mm
Evening
6 PM–midnight
70% chance · 0.33 in8.4 mm
Overnight
midnight–6 AM
80% chance · 0.17 in4.3 mm
Official NWS forecast
Day: Rain. Mostly cloudy. High near 57, with temperatures falling to around 55 in the afternoon. South wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Night: Rain. Mostly cloudy, with a low around 44. South southeast wind 2 to 6 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
60% chance · 0.1 in2.6 mm
Afternoon
noon–6 PM
30% chance · 0.02 in0.5 mm
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
40% chance · 0.04 in1.1 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain likely before 5pm. Mostly cloudy, with a high near 60. South southeast wind 0 to 5 mph. Chance of precipitation is 60%.
Night: Areas of fog between 8pm and 11pm, then a chance of rain and patchy fog. Mostly cloudy, with a low around 42. Chance of precipitation is 40%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
40% chance · 0.05 in1.3 mm
Afternoon
noon–6 PM
40% chance · 0.02 in0.5 mm
Evening
6 PM–midnight
30% chance
Overnight
midnight–6 AM
70% chance · 0.17 in4.3 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain. Mostly cloudy, with a high near 59.
Night: A slight chance of rain before 8pm, then rain likely and patchy fog. Mostly cloudy, with a low around 41.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
70% chance · 0.1 in2.5 mm
Afternoon
noon–6 PM
80% chance · 0.12 in3 mm
Evening
6 PM–midnight
70% chance · 0.08 in2.1 mm
Overnight
midnight–6 AM
60% chance · 0.11 in2.9 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain likely before 11am, then showers and thunderstorms between 11am and 5pm, then rain likely. Mostly cloudy, with a high near 55.
Night: Rain likely. Mostly cloudy, with a low around 38.
Forecasts agreeIndependent forecasts are close; the range is narrow.
Morning
6 AM–noon
50% chance · 0.11 in2.7 mm
Afternoon
noon–6 PM
60% chance · 0.15 in3.8 mm
Evening
6 PM–midnight
50% chance · 0.05 in1.4 mm
Overnight
midnight–6 AM
30% chance · 0.04 in1 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain likely. Mostly cloudy, with a high near 54.
Night: A chance of rain before 5am. Mostly cloudy, with a low around 35.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
20% chance · 0.01 in0.3 mm
Afternoon
noon–6 PM
30% chance · 0.02 in0.5 mm
Evening
6 PM–midnight
20% chance · 0.06 in1.5 mm
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain between 11am and 5pm. Partly sunny, with a high near 56.
Night: Mostly cloudy, with a low around 33.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
20% chance · 0.09 in2.3 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
20% chance · 0.03 in0.7 mm
Afternoon
noon–6 PM
20% chance
Evening
6 PM–midnight
20% chance
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Dry, high 61°, low 39°.
77% chance of rain, high 57°, low 44°, cooling off.
58% chance of rain, high 60°, low 42°, warming up.
Highs 50–59°; chance of precipitation on Tuesday, Wednesday, Thursday.
Want the meteorologists’ reasoning? Read the NWS forecast discussion (PQR) (opens in a new tab)
No meaningful changes from yesterday’s forecast.
Forecast peak 33.8 ft Thu 5 AM
Reading from Sat 10:30 AM · NWS gauge page
Forecast peak 121 ft Wed 11 PM
Reading from Sat 10:45 AM · NWS gauge page
Forecast peak 10.2 ft Thu 9 PM
Reading from Sat 9:06 AM · NWS gauge page
Forecast peak 7.5 ft Wed 5 PM
Reading from Sat 11 AM · NWS gauge page
What this week’s weather means for heating, cooling, pipes and fresh air.
About 66% less heating than a typical week.
Heating degree days, base 65°F
47, 17 and 5°F are the test points heat pumps are rated at. About 11 hours are near freezing and damp, when outdoor units defrost more often.
Dry air outside (dew point 39°F).
No stretch in the next few days is comfortable enough outside, by temperature, dew point and air quality.
Today’s expected high is about typical for the date.
On average 1° warmer than normal (daily mean temperature).
Castle Rock weather by month: normals, records, snow and freeze dates
Sunrise 7:41 AM, sunset 6:09 PM.
Clouds most of the night (about 81% cover).
Waxing gibbous
97% lit · growing