Mad River near Arcata
11 mi- Level
- 5.7 ft
- Flow
- 53 cfs
Forecast peak 5.7 ft Sat 11 AM
Reading from Sat 9:45 AM · NWS gauge page
Appearance
Observed 10:30 AM PDT at KACV
Sunny and 50°10°, 8°4° colder than a typical Oct 24.
Today: low 45°7° (likely 41°5° to 45°7°), high 55°13° (likely 55°13° to 65°18°).
Now 50°10°
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 | Mostly sunny | 49°9° (likely 49°9° to 62°17°) | 48°9° | 0% | 3 mph5 km/h from WNW, gusts 5 mph7 km/h | 76% | 13% | 3 |
| Sat 12p | Mostly sunny | 50°10° (likely 50°10° to 64°18°) | 49°9° | 0% | 3 mph5 km/h from WNW, gusts 8 mph13 km/h | 78% | 11% | 4 |
| Sat 1p | Mostly sunny | 52°11° (likely 52°11° to 65°18°) | 52°11° | 0% | 3 mph5 km/h from WNW, gusts 11 mph18 km/h | 77% | 12% | 4 |
| Sat 2p | Partly sunny | 53°12° (likely 53°12° to 65°18°) | 53°12° | 0% | 6 mph10 km/h from NNW, gusts 14 mph22 km/h | 78% | 32% | 4 |
| Sat 3p | Sunny | 53°12° (likely 53°12° to 64°18°) | 53°12° | 0% | 6 mph10 km/h from NNW, gusts 14 mph22 km/h | 79% | 18% | 4 |
| Sat 4p | Sunny | 54°12° (likely 54°12° to 62°17°) | 54°12° | 0% | 6 mph10 km/h from NNW, gusts 13 mph21 km/h | 83% | 6% | 3 |
| Sat 5p | Partly sunny | 53°12° (likely 53°12° to 60°16°) | 53°12° | 0% | 7 mph11 km/h from N, gusts 12 mph19 km/h | 83% | 29% | 1 |
| Sat 6p | Clear | 53°12° (likely 52°11° to 57°14°) | 53°12° | 0% | 7 mph11 km/h from N, gusts 9 mph15 km/h | 86% | 40% | 1 |
| Sat 7p | Clear | 51°11° (likely 50°10° to 54°12°) | 51°11° | 0% | 7 mph11 km/h from N, gusts 8 mph12 km/h | 90% | 40% | 0 |
| Sat 8p | Clear | 49°9° (likely 48°9° to 51°11°) | 47°8° | 0% | 5 mph8 km/h from N, gusts 7 mph11 km/h | 91% | 41% | 0 |
| Sat 9p | Mostly cloudy | 49°9° (likely 47°8° to 50°10°) | 47°8° | 0% | 5 mph8 km/h from N, gusts 6 mph10 km/h | 91% | 46% | 0 |
| Sat 10p | Cloudy | 49°9° (likely 47°8° to 49°9°) | 47°8° | 0% | 5 mph8 km/h from N, gusts 6 mph9 km/h | 92% | 67% | 0 |
| Sat 11p | Cloudy | 49°9° (likely 46°8° to 49°9°) | 48°9° | 0% | 3 mph5 km/h from N, gusts 5 mph9 km/h | 91% | 75% | 0 |
| Sun 12a | Cloudy | 48°9° (likely 46°8° to 48°9°) | 47°8° | 0% | 3 mph5 km/h from N, gusts 6 mph9 km/h | 91% | 75% | 0 |
| Sun 1a | Cloudy | 48°9° (likely 46°8° to 48°9°) | 47°8° | 0% | 3 mph5 km/h from N, gusts 6 mph9 km/h | 92% | 78% | 0 |
| Sun 2a | Cloudy | 48°9° (likely 45°7° to 48°9°) | 48°9° | 0% | 2 mph3 km/h from NNE, gusts 7 mph11 km/h | 91% | 79% | 0 |
| Sun 3a | Cloudy | 47°8° (likely 45°7° to 48°9°) | 47°8° | 0% | 2 mph3 km/h from NNE, gusts 7 mph11 km/h | 92% | 75% | 0 |
| Sun 4a | Mostly cloudy | 47°8° (likely 45°7° to 48°9°) | 47°8° | 0% | 2 mph3 km/h from NNE, gusts 8 mph13 km/h | 92% | 66% | 0 |
| Sun 5a | Mostly cloudy | 47°8° (likely 45°7° to 47°8°) | 46°8° | 0% | 3 mph5 km/h from NE, gusts 9 mph14 km/h | 92% | 63% | 0 |
| Sun 6a | Mostly cloudy | 46°8° (likely 44°7° to 46°8°) | 45°7° | 0% | 3 mph5 km/h from NE, gusts 8 mph13 km/h | 91% | 69% | 0 |
| Sun 7a | Mostly cloudy | 47°8° (likely 44°7° to 47°8°) | 46°8° | 0% | 3 mph5 km/h from NE, gusts 7 mph12 km/h | 91% | 63% | 0 |
| Sun 8a | Cloudy | 47°8° (likely 44°7° to 47°8°) | 46°8° | 0% | 3 mph5 km/h from E, gusts 7 mph12 km/h | 91% | 74% | 0 |
| Sun 9a | Cloudy | 47°8° (likely 47°8° to 48°9°) | 46°8° | 0% | 3 mph5 km/h from E, gusts 6 mph10 km/h | 92% | 85% | 0 |
| Sun 10a | Cloudy | 48°9° (likely 48°9° to 54°12°) | 47°8° | 0% | 3 mph5 km/h from E, gusts 5 mph8 km/h | 93% | 90% | 1 |
| Sun 11a | Cloudy | 49°9° (likely 49°9° to 57°14°) | 48°9° | 0% | 3 mph5 km/h from WSW, gusts 5 mph7 km/h | 91% | 95% | 2 |
| Sun 12p | Cloudy | 49°9° (likely 49°9° to 59°15°) | 48°9° | 0% | 3 mph5 km/h from WSW, gusts 5 mph8 km/h | 95% | 98% | 3 |
| Sun 1p | Cloudy | 52°11° (likely 52°11° to 59°15°) | 52°11° | 0% | 3 mph5 km/h from WSW, gusts 4 mph7 km/h | 93% | 95% | 3 |
| Sun 2p | Cloudy | 52°11° (likely 52°11° to 59°15°) | 52°11° | 0% | 5 mph8 km/h from SSW, gusts 4 mph7 km/h | 93% | 90% | 2 |
| Sun 3p | Cloudy | 52°11° (likely 52°11° to 59°15°) | 52°11° | 0% | 5 mph8 km/h from SSW, gusts 4 mph7 km/h | 94% | 80% | 3 |
| Sun 4p | Cloudy | 53°12° (likely 53°12° to 59°15°) | 53°12° | 0% | 5 mph8 km/h from SSW, gusts 5 mph8 km/h | 94% | 47% | 2 |
| Sun 5p | Mostly sunny | 53°12° (likely 53°12° to 58°14°) | 53°12° | 60%, 0.04 in1 mm | 6 mph10 km/h from SSE, gusts 6 mph10 km/h | 92% | 38% | 1 |
| Sun 6p | Clear | 53°12° (likely 53°12° to 56°13°) | 53°12° | 60%, 0.04 in1 mm | 6 mph10 km/h from SSE, gusts 7 mph12 km/h | 92% | 41% | 0 |
| Sun 7p | Clear | 52°11° (likely 51°11° to 55°13°) | 52°11° | 60%, 0.04 in1 mm | 6 mph10 km/h from SSE, gusts 9 mph14 km/h | 94% | 43% | 0 |
| Sun 8p | Mostly clear | 51°11° (likely 50°10° to 55°13°) | 51°11° | 60%, 0.04 in1 mm | 12 mph19 km/h from SE, gusts 12 mph19 km/h | 95% | 59% | 0 |
| Sun 9p | Cloudy | 51°11° (likely 51°11° to 55°13°) | 51°11° | 60%, 0.04 in1 mm | 12 mph19 km/h from SE, gusts 13 mph21 km/h | 94% | 82% | 0 |
| Sun 10p | Rain | 51°11° (likely 51°11° to 55°13°) | 51°11° | 60%, 0.04 in1 mm | 12 mph19 km/h from SE, gusts 14 mph23 km/h | 95% | 95% | 0 |
| Sun 11p | Rain | 51°11° (likely 51°11° to 54°12°) | 51°11° | 100%, 0.15 in3.8 mm | 10 mph16 km/h from SSE, gusts 15 mph24 km/h | 94% | 92% | 0 |
| Mon 12a | Drizzle | 51°11° (likely 51°11° to 54°12°) | 51°11° | 100%, 0.15 in3.8 mm | 10 mph16 km/h from SSE, gusts 9 mph15 km/h | 95% | 95% | 0 |
| Mon 1a | Rain | 51°11° (likely 51°11° to 53°12°) | 51°11° | 100%, 0.15 in3.8 mm | 10 mph16 km/h from SSE, gusts 9 mph14 km/h | 96% | 92% | 0 |
| Mon 2a | Rain | 51°11° (likely 51°11° to 53°12°) | 51°11° | 100%, 0.15 in3.8 mm | 12 mph19 km/h from SSE, gusts 7 mph12 km/h | 96% | 87% | 0 |
| Mon 3a | Cloudy | 50°10° (likely 50°10° to 52°11°) | 46°8° | 100%, 0.15 in3.8 mm | 12 mph19 km/h from SSE, gusts 9 mph14 km/h | 97% | 90% | 0 |
| Mon 4a | Rain | 50°10° (likely 50°10° to 52°11°) | 46°8° | 100%, 0.15 in3.8 mm | 12 mph19 km/h from SSE, gusts 9 mph14 km/h | 98% | 92% | 0 |
| Mon 5a | Rain | 50°10° (likely 50°10° to 52°11°) | 47°8° | 80%, 0.06 in1.5 mm | 7 mph11 km/h from SE, gusts 9 mph15 km/h | 98% | 86% | 0 |
| Mon 6a | Drizzle | 50°10° (likely 50°10° to 52°11°) | 47°8° | 80%, 0.06 in1.5 mm | 7 mph11 km/h from SE, gusts 9 mph14 km/h | 98% | 93% | 0 |
| Mon 7a | Drizzle | 50°10° (likely 50°10° to 52°11°) | 47°8° | 80%, 0.06 in1.5 mm | 7 mph11 km/h from SE, gusts 8 mph12 km/h | 98% | 96% | 0 |
| Mon 8a | Rain | 50°10° (likely 50°10° to 51°11°) | 46°8° | 80%, 0.06 in1.5 mm | 12 mph19 km/h from S, gusts 9 mph15 km/h | 98% | 92% | 0 |
| Mon 9a | Drizzle | 50°10° (likely 50°10° to 52°11°) | 46°8° | 80%, 0.06 in1.5 mm | 12 mph19 km/h from S, gusts 10 mph16 km/h | 99% | 89% | 0 |
| Mon 10a | Drizzle | 50°10° (likely 50°10° to 55°13°) | 45°7° | 80%, 0.06 in1.5 mm | 12 mph19 km/h from S, gusts 10 mph16 km/h | 99% | 78% | 1 |
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Official NWS forecast
Today: Mostly sunny, with a high near 55. North northwest wind 3 to 7 mph.
Tonight: Mostly cloudy, with a low around 45. North northeast wind 2 to 7 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
60% chance · 0.04 in1 mm
Evening
6 PM–midnight
100% chance · 0.35 in8.9 mm
Overnight
midnight–6 AM
100% chance · 0.81 in21 mm
Official NWS forecast
Day: Rain likely after 5pm. Mostly cloudy, with a high near 54. South southeast wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Night: Rain. Mostly cloudy, with a low around 48. South southeast wind 6 to 12 mph. Chance of precipitation is 100%. 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 · 0.32 in8 mm
Afternoon
noon–6 PM
60% chance · 0.05 in1.1 mm
Evening
6 PM–midnight
20% chance
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain. Partly sunny, with a high near 52. South wind 5 to 12 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
Night: A slight chance of rain before 11pm. Partly cloudy, with a low around 45. South southeast wind 3 to 7 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
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.
Official NWS forecast
Day: Mostly sunny, with a high near 53.
Night: Mostly cloudy, with a low around 45.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
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.
Official NWS forecast
Day: Partly sunny, with a high near 52.
Night: Mostly cloudy, with a low around 45.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
30% chance
Evening
6 PM–midnight
30% chance
Overnight
midnight–6 AM
20% chance · 0.02 in0.5 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain after 11am. Mostly sunny, with a high near 52.
Night: A slight chance of rain. Mostly cloudy, with a low around 45.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
20% chance · 0.05 in1.2 mm
Afternoon
noon–6 PM
30% chance · 0.1 in2.6 mm
Evening
6 PM–midnight
30% chance · 0.1 in2.4 mm
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain. Mostly sunny, with a high near 52.
Night: A slight chance of rain. Mostly cloudy, with a low around 45.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
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.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
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.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
20% chance · 0.03 in0.8 mm
Afternoon
noon–6 PM
30% chance · 0.14 in3.6 mm
Evening
6 PM–midnight
30% chance · 0.07 in1.7 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.
Dry, high 55°, low 45°.
56% chance of rain, high 54°, low 48°.
77% chance of rain, high 52°, low 45°.
Mostly dry, highs 52–61°.
Want the meteorologists’ reasoning? Read the NWS forecast discussion (EKA) (opens in a new tab)
No meaningful changes from yesterday’s forecast.
Forecast peak 5.7 ft Sat 11 AM
Reading from Sat 9:45 AM · NWS gauge page
Forecast peak 10.4 ft Tue 3 AM
Reading from Sat 9:15 AM · NWS gauge page
Forecast peak 11.2 ft Tue 2 AM
Reading from Sat 10 AM · NWS gauge page
Reading from Sat 9:30 AM · NWS gauge page
What this week’s weather means for heating, cooling, pipes and fresh air.
About 65% 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.
Dry air outside (dew point 45°F).
No stretch in the next few days is comfortable enough outside, by temperature, dew point and air quality.
Today’s expected high is 8°4° colder than typical.
On average 2°1° colder than normal (daily mean temperature).
Trinidad weather by month: normals, records, snow and freeze dates
Sunrise 7:38 AM, sunset 6:22 PM.
Clouds most of the night (about 63% cover).
Waxing gibbous
97% lit · growing