Mad River near Arcata
6.7 mi- Level
- 5.7 ft
- Flow
- 56 cfs
Forecast peak 5.7 ft Tue 2 AM
Reading from Fri 11:45 AM · NWS gauge page
Appearance
Starts in 11 h 23 min
Issued for this forecast zone · National Weather Service Eureka CA
What
Temperatures as low as 34 will result in frost formation.
Impacts
Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
Precautionary actions
Take steps now to protect tender plants from the cold.
Areas: Coastal Del Norte; Northern Coastal Humboldt
See it on weather.gov (opens in a new tab)Observed 1:10 PM PDT at KACV
Sunny and 61°16°, 8°4° colder than a typical Oct 23.
Today: low 44°7° (likely 43°6° to 49°9°), high 53°12° (likely 53°12° to 59°15°).
Now 61°16°
Sunny
No precipitation expected in the next 2 hours.
From forecast models
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Fri 1p | Sunny | 51°11° (likely 51°11° to 58°14°) | 51°11° | 0% | 22 mph35 km/h from NNW, gusts 25 mph40 km/h | 86% | 6% | 4 |
| Fri 2p | Sunny | 51°11° (likely 51°11° to 58°14°) | 51°11° | 0% | 22 mph35 km/h from N, gusts 26 mph42 km/h | 86% | 0% | 4 |
| Fri 3p | Sunny | 51°11° (likely 51°11° to 59°15°) | 51°11° | 0% | 22 mph35 km/h from N, gusts 27 mph44 km/h | 89% | 0% | 4 |
| Fri 4p | Sunny | 52°11° (likely 52°11° to 58°14°) | 52°11° | 0% | 22 mph35 km/h from N, gusts 27 mph44 km/h | 83% | 0% | 3 |
| Fri 5p | Sunny | 51°11° (likely 51°11° to 57°14°) | 51°11° | 0% | 17 mph27 km/h from N, gusts 26 mph41 km/h | 83% | 0% | 2 |
| Fri 6p | Clear | 52°11° (likely 52°11° to 55°13°) | 52°11° | 0% | 17 mph27 km/h from N, gusts 22 mph36 km/h | 83% | 0% | 1 |
| Fri 7p | Clear | 51°11° (likely 51°11° to 54°12°) | 51°11° | 0% | 17 mph27 km/h from N, gusts 17 mph27 km/h | 83% | 1% | 0 |
| Fri 8p | Clear | 52°11° (likely 49°9° to 53°12°) | 52°11° | 0% | 8 mph13 km/h from N, gusts 14 mph23 km/h | 83% | 1% | 0 |
| Fri 9p | Clear | 52°11° (likely 46°8° to 52°11°) | 52°11° | 0% | 8 mph13 km/h from N, gusts 11 mph18 km/h | 83% | 0% | 0 |
| Fri 10p | Clear | 51°11° (likely 44°7° to 51°11°) | 48°9° | 0% | 8 mph13 km/h from N, gusts 4 mph6 km/h | 83% | 7% | 0 |
| Fri 11p | Clear | 50°10° (likely 43°6° to 50°10°) | 50°10° | 0% | 2 mph3 km/h from ESE, gusts 6 mph9 km/h | 83% | 12% | 0 |
| Sat 12a | Clear | 49°9° (likely 42°6° to 49°9°) | 49°9° | 0% | 2 mph3 km/h from ESE, gusts 6 mph10 km/h | 80% | 15% | 0 |
| Sat 1a | Clear | 48°9° (likely 41°5° to 49°9°) | 48°9° | 0% | 2 mph3 km/h from ESE, gusts 6 mph9 km/h | 80% | 20% | 0 |
| Sat 2a | Clear | 48°9° (likely 41°5° to 48°9°) | 47°8° | 0% | 3 mph5 km/h from SSE, gusts 5 mph8 km/h | 77% | 19% | 0 |
| Sat 3a | Clear | 47°8° (likely 40°4° to 48°9°) | 46°8° | 0% | 3 mph5 km/h from SSE, gusts 5 mph8 km/h | 76% | 18% | 0 |
| Sat 4a | Clear | 46°8° (likely 40°4° to 47°8°) | 45°7° | 0% | 3 mph5 km/h from SSE, gusts 4 mph7 km/h | 76% | 18% | 0 |
| Sat 5a | Partly cloudy | 46°8° (likely 40°4° to 48°9°) | 46°8° | 0% | 2 mph3 km/h from SSE, gusts 4 mph7 km/h | 73% | 49% | 0 |
| Sat 6a | Partly cloudy | 46°8° (likely 39°4° to 47°8°) | 46°8° | 0% | 2 mph3 km/h from SSE, gusts 4 mph7 km/h | 73% | 48% | 0 |
| Sat 7a | Partly cloudy | 46°8° (likely 39°4° to 47°8°) | 46°8° | 0% | 2 mph3 km/h from SSE, gusts 4 mph7 km/h | 73% | 49% | 0 |
| Sat 8a | Partly sunny | 45°7° (likely 39°4° to 48°9°) | 45°7° | 0% | 2 mph3 km/h from SSE, gusts 4 mph7 km/h | 73% | 49% | 0 |
| Sat 9a | Partly sunny | 47°8° (likely 42°6° to 51°11°) | 47°8° | 0% | 2 mph3 km/h from SSE, gusts 4 mph7 km/h | 74% | 36% | 1 |
| Sat 10a | Partly sunny | 49°9° (likely 49°9° to 56°13°) | 49°9° | 0% | 2 mph3 km/h from SSE, gusts 3 mph6 km/h | 77% | 48% | 2 |
| Sat 11a | Partly sunny | 50°10° (likely 50°10° to 62°17°) | 50°10° | 0% | 3 mph5 km/h from W, gusts 3 mph5 km/h | 77% | 48% | 3 |
| Sat 12p | Partly sunny | 51°11° (likely 51°11° to 63°17°) | 51°11° | 0% | 3 mph5 km/h from W, gusts 4 mph7 km/h | 77% | 46% | 4 |
| Sat 1p | Sunny | 53°12° (likely 53°12° to 64°18°) | 53°12° | 0% | 3 mph5 km/h from W, gusts 6 mph10 km/h | 74% | 44% | 4 |
| Sat 2p | Sunny | 53°12° (likely 53°12° to 65°18°) | 53°12° | 0% | 5 mph8 km/h from NW, gusts 9 mph14 km/h | 80% | 42% | 4 |
| Sat 3p | Sunny | 53°12° (likely 53°12° to 64°18°) | 53°12° | 0% | 5 mph8 km/h from NW, gusts 10 mph16 km/h | 83% | 37% | 4 |
| Sat 4p | Sunny | 54°12° (likely 54°12° to 63°17°) | 54°12° | 0% | 5 mph8 km/h from NW, gusts 10 mph15 km/h | 86% | 41% | 3 |
| Sat 5p | Sunny | 53°12° (likely 53°12° to 60°16°) | 53°12° | 0% | 5 mph8 km/h from NNW, gusts 10 mph16 km/h | 90% | 41% | 2 |
| Sat 6p | Clear | 53°12° (likely 53°12° to 56°13°) | 53°12° | 0% | 5 mph8 km/h from NNW, gusts 9 mph15 km/h | 90% | 41% | 1 |
| Sat 7p | Partly cloudy | 52°11° (likely 51°11° to 53°12°) | 52°11° | 0% | 5 mph8 km/h from NNW, gusts 8 mph12 km/h | 89% | 43% | 0 |
| Sat 8p | Partly cloudy | 53°12° (likely 49°9° to 53°12°) | 53°12° | 0% | 3 mph5 km/h from N, gusts 8 mph13 km/h | 83% | 54% | 0 |
| Sat 9p | Partly cloudy | 53°12° (likely 47°8° to 53°12°) | 53°12° | 0% | 3 mph5 km/h from N, gusts 7 mph11 km/h | 83% | 61% | 0 |
| Sat 10p | Partly cloudy | 52°11° (likely 47°8° to 52°11°) | 52°11° | 0% | 3 mph5 km/h from N, gusts 6 mph10 km/h | 80% | 63% | 0 |
| Sat 11p | Partly cloudy | 51°11° (likely 46°8° to 51°11°) | 51°11° | 0% | 3 mph5 km/h from NNE, gusts 6 mph10 km/h | 83% | 64% | 0 |
| Sun 12a | Partly cloudy | 50°10° (likely 45°7° to 50°10°) | 50°10° | 0% | 3 mph5 km/h from NNE, gusts 7 mph11 km/h | 83% | 65% | 0 |
| Sun 1a | Partly cloudy | 50°10° (likely 44°7° to 50°10°) | 50°10° | 0% | 3 mph5 km/h from NNE, gusts 8 mph12 km/h | 83% | 66% | 0 |
| Sun 2a | Mostly cloudy | 50°10° (likely 44°7° to 50°10°) | 50°10° | 0% | 2 mph3 km/h from NE, gusts 8 mph12 km/h | 83% | 69% | 0 |
| Sun 3a | Mostly cloudy | 49°9° (likely 44°7° to 49°9°) | 49°9° | 0% | 2 mph3 km/h from NE, gusts 7 mph11 km/h | 86% | 72% | 0 |
| Sun 4a | Mostly cloudy | 48°9° (likely 43°6° to 48°9°) | 48°9° | 0% | 2 mph3 km/h from NE, gusts 7 mph11 km/h | 86% | 76% | 0 |
| Sun 5a | Cloudy | 48°9° (likely 43°6° to 48°9°) | 48°9° | 0% | 2 mph3 km/h from E, gusts 8 mph14 km/h | 86% | 81% | 0 |
| Sun 6a | Cloudy | 47°8° (likely 43°6° to 48°9°) | 47°8° | 0% | 2 mph3 km/h from E, gusts 9 mph14 km/h | 89% | 82% | 0 |
| Sun 7a | Cloudy | 47°8° (likely 43°6° to 47°8°) | 47°8° | 0% | 2 mph3 km/h from E, gusts 8 mph13 km/h | 89% | 83% | 0 |
| Sun 8a | Cloudy | 48°9° (likely 43°6° to 48°9°) | 47°8° | 0% | 3 mph5 km/h from E, gusts 7 mph11 km/h | 86% | 79% | 0 |
| Sun 9a | Cloudy | 48°9° (likely 46°8° to 52°11°) | 47°8° | 0% | 3 mph5 km/h from E, gusts 6 mph10 km/h | 89% | 76% | 1 |
| Sun 10a | Cloudy | 49°9° (likely 49°9° to 56°13°) | 48°9° | 0% | 3 mph5 km/h from E, gusts 5 mph7 km/h | 86% | 73% | 1 |
| Sun 11a | Cloudy | 50°10° (likely 50°10° to 61°16°) | 50°10° | 5% | 1 mph2 km/h from N, gusts 4 mph7 km/h | 86% | 73% | 2 |
| Sun 12p | Mostly cloudy | 51°11° (likely 51°11° to 67°19°) | 51°11° | 5% | 1 mph2 km/h from N, gusts 4 mph7 km/h | 86% | 66% | 3 |
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Official NWS forecast
Today: Sunny, with a high near 53. North northwest wind 17 to 22 mph, with gusts as high as 28 mph.
Tonight: Mostly clear, with a low around 44. East wind 2 to 17 mph.
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
Official NWS forecast
Day: Mostly sunny, with a high near 55. West northwest wind around 5 mph.
Night: Mostly cloudy, with a low around 46. North northeast wind around 5 mph.
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
30% chance · 0.02 in0.5 mm
Overnight
midnight–6 AM
50% chance · 0.02 in0.5 mm
Official NWS forecast
Day: A chance of rain showers after 5pm. Partly sunny, with a high near 54. North wind around 3 mph. Chance of precipitation is 30%.
Night: A chance of rain showers. Mostly cloudy, with a low around 48. Southeast wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
50% chance · 0.13 in3.3 mm
Afternoon
noon–6 PM
50% chance · 0.03 in0.8 mm
Evening
6 PM–midnight
40% chance
Overnight
midnight–6 AM
20% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain showers before 11am, then a chance of rain showers and patchy fog between 11am and 5pm, then a chance of rain. Partly sunny, with a high near 54. New rainfall amounts less than a tenth of an inch possible.
Night: A chance of rain before 11pm. Mostly cloudy, with a low around 47.
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: Partly sunny, with a high near 53.
Night: Mostly cloudy, with a low around 47.
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 53.
Night: Mostly cloudy, with a low around 47.
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: Mostly cloudy, with a high near 53.
Night: A slight chance of rain after 5am. Mostly cloudy, with a low around 47.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
20% chance
Afternoon
noon–6 PM
20% chance
Evening
6 PM–midnight
20% chance
Overnight
midnight–6 AM
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.
Morning
6 AM–noon
20% chance
Afternoon
noon–6 PM
20% chance
Evening
6 PM–midnight
30% chance · 0.02 in0.5 mm
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 · 0.1 in2.4 mm
Afternoon
noon–6 PM
30% chance · 0.06 in1.5 mm
Evening
6 PM–midnight
30% chance · 0.05 in1.2 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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Dry, high 53°, low 44°.
Dry, high 55°, low 46°.
Dry, high 54°, low 48°.
Highs 53–59°; chance of precipitation on Monday.
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 Tue 2 AM
Reading from Fri 11:45 AM · NWS gauge page
Forecast peak 0.2 ft Fri 1 PM
Reading from Fri 11:15 AM · NWS gauge page
Reading from Fri 11:45 AM · NWS gauge page
Reading from Fri 11:30 AM · NWS gauge page
What this week’s weather means for heating, cooling, pipes and fresh air.
About 64% 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 41°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 1°0° colder than normal (daily mean temperature).
Manila weather by month: normals, records, snow and freeze dates
Sunrise 7:37 AM, sunset 6:24 PM.
Mostly clear 6:52 PM–5 AM, but the moon is 96% lit and up.
Waxing gibbous
93% lit · growing