Freeze Warning
Ends in 5 h 39 min
When
From 1 AM to 9 AM PDT Saturday.
Where
Trinity County, Northern Mendocino Interior, and Northern Lake.
Issued for this forecast zone · National Weather Service Eureka CA
What, impacts and precautionsHide details
What
Sub-freezing temperatures as low as 29 expected.
Impacts
Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
Precautionary actions
Take steps now to protect tender plants from the cold.
Areas: Southern Trinity; Northwestern Interior Mendocino; Northeastern Interior Mendocino; Northern Lake; Northwestern and Central Trinity; Northeastern Trinity
See it on weather.gov (opens in a new tab)

Observed 3:00 AM PDT at KUKI

Willits, CA weather

Freeze Warning. 45°7° and clear now.

Mostly agree

Now 45°7°

Clear

Wind: Calm; Up to 8 mph13 km/h through 3 PM
Dew point: 43°6°; Comfortable · down to 32°0° by 4 AM (dry)
Humidity: 93%; Air 45°7°, dew point 43°6° · fog or dew likely
UV index: 0Low; Moderate 11 AM–5 PM · peak 5
Air quality: 50Good; Main pollutant: PM2.5 (fine particles)
Pressure: 30.09 inHg1019 hPa; Steady over the last 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Low 36°2° today at 7 AM
Above 50°10° today by 10 AM
High 73°23° today at 2 PM
Below 60°16° tonight after 8 PM

TonightNear 39°4° · Clear
This morningUp to 60°16° by 11 AM · Clear
This afternoonUp to 73°23° by 2 PM · Clear
TonightDown to 41°5° by 4 AM · Partly cloudy
Tomorrow morningUp to 59°15° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 70°21° by 2 PM · Mostly cloudy
Tomorrow nightDown to 43°6° by 2 AM · Partly cloudy

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 3a	Clear	40°4° (likely 40°4° to 47°8°)	40°4°	0%	0 mph0 km/h, gusts 4 mph7 km/h	75%	0%	0
Sat 4a	Clear	38°3° (likely 38°3° to 48°9°)	38°3°	0%	0 mph0 km/h, gusts 4 mph6 km/h	77%	0%	0
Sat 5a	Clear	38°3° (likely 38°3° to 48°9°)	38°3°	0%	1 mph2 km/h from SSW, gusts 4 mph6 km/h	78%	0%	0
Sat 6a	Clear	37°3° (likely 37°3° to 49°9°)	37°3°	0%	1 mph2 km/h from SSW, gusts 5 mph7 km/h	80%	0%	0
Sat 7a	Clear	36°2° (likely 36°2° to 49°9°)	36°2°	0%	1 mph2 km/h from SSW, gusts 4 mph7 km/h	78%	0%	0
Sat 8a	Sunny	36°2° (likely 36°2° to 50°10°)	36°2°	0%	0 mph0 km/h, gusts 4 mph7 km/h	77%	0%	0
Sat 9a	Sunny	42°6° (likely 42°6° to 53°12°)	42°6°	0%	0 mph0 km/h, gusts 4 mph7 km/h	60%	0%	1
Sat 10a	Sunny	53°12° (likely 53°12° to 61°16°)	53°12°	0%	0 mph0 km/h, gusts 4 mph6 km/h	44%	0%	2
Sat 11a	Sunny	60°16° (likely 60°16° to 67°19°)	60°16°	0%	1 mph2 km/h from WSW, gusts 5 mph8 km/h	35%	2%	3
Sat 12p	Sunny	66°19° (likely 66°19° to 72°22°)	66°19°	0%	1 mph2 km/h from WSW, gusts 4 mph7 km/h	28%	1%	4
Sat 1p	Sunny	71°22° (likely 69°21° to 74°23°)	71°22°	0%	1 mph2 km/h from WSW, gusts 4 mph7 km/h	23%	0%	5
Sat 2p	Sunny	73°23° (likely 69°21° to 76°24°)	73°23°	0%	8 mph13 km/h from W, gusts 6 mph10 km/h	20%	3%	5
Sat 3p	Sunny	73°23° (likely 69°21° to 75°24°)	73°23°	0%	8 mph13 km/h from W, gusts 8 mph13 km/h	23%	30%	4
Sat 4p	Sunny	73°23° (likely 68°20° to 73°23°)	73°23°	0%	8 mph13 km/h from W, gusts 10 mph16 km/h	28%	8%	3
Sat 5p	Sunny	69°21° (likely 65°18° to 71°22°)	69°21°	0%	2 mph3 km/h from W, gusts 10 mph16 km/h	32%	5%	2
Sat 6p	Clear	65°18° (likely 60°16° to 66°19°)	65°18°	0%	2 mph3 km/h from W, gusts 9 mph14 km/h	41%	5%	1
Sat 7p	Mostly clear	61°16° (likely 55°13° to 61°16°)	61°16°	0%	2 mph3 km/h from W, gusts 5 mph8 km/h	46%	8%	0
Sat 8p	Clear	54°12° (likely 53°12° to 56°13°)	54°12°	0%	1 mph2 km/h from ENE, gusts 3 mph5 km/h	53%	0%	0
Sat 9p	Clear	52°11° (likely 51°11° to 56°13°)	52°11°	0%	1 mph2 km/h from ENE, gusts 3 mph4 km/h	55%	0%	0
Sat 10p	Partly cloudy	50°10° (likely 49°9° to 55°13°)	50°10°	0%	1 mph2 km/h from ENE, gusts 3 mph5 km/h	57%	20%	0
Sat 11p	Clear	47°8° (likely 46°8° to 55°13°)	46°8°	0%	3 mph5 km/h from ENE, gusts 3 mph5 km/h	59%	40%	0
Sun 12a	Mostly clear	45°7° (likely 45°7° to 54°12°)	44°7°	0%	3 mph5 km/h from ENE, gusts 4 mph6 km/h	61%	60%	0
Sun 1a	Mostly clear	45°7° (likely 45°7° to 54°12°)	44°7°	0%	3 mph5 km/h from ENE, gusts 4 mph6 km/h	62%	63%	0
Sun 2a	Cloudy	44°7° (likely 44°7° to 54°12°)	44°7°	0%	1 mph2 km/h from ENE, gusts 4 mph6 km/h	63%	72%	0
Sun 3a	Cloudy	42°6° (likely 42°6° to 54°12°)	42°6°	0%	1 mph2 km/h from ENE, gusts 4 mph7 km/h	65%	73%	0
Sun 4a	Cloudy	41°5° (likely 41°5° to 54°12°)	41°5°	0%	1 mph2 km/h from ENE, gusts 5 mph8 km/h	69%	72%	0
Sun 5a	Cloudy	41°5° (likely 41°5° to 53°12°)	41°5°	0%	1 mph2 km/h from ENE, gusts 5 mph8 km/h	72%	71%	0
Sun 6a	Partly cloudy	39°4° (likely 39°4° to 52°11°)	39°4°	0%	1 mph2 km/h from ENE, gusts 5 mph8 km/h	76%	76%	0
Sun 7a	Cloudy	38°3° (likely 38°3° to 51°11°)	38°3°	0%	1 mph2 km/h from ENE, gusts 5 mph9 km/h	78%	81%	0
Sun 8a	Cloudy	39°4° (likely 39°4° to 51°11°)	39°4°	0%	2 mph3 km/h from E, gusts 6 mph9 km/h	77%	68%	0
Sun 9a	Partly sunny	44°7° (likely 44°7° to 54°12°)	44°7°	0%	2 mph3 km/h from E, gusts 5 mph8 km/h	68%	61%	1
Sun 10a	Cloudy	51°11° (likely 51°11° to 62°17°)	51°11°	0%	2 mph3 km/h from E, gusts 10 mph16 km/h	56%	72%	2
Sun 11a	Cloudy	59°15° (likely 59°15° to 67°19°)	59°15°	0%	1 mph2 km/h from S, gusts 11 mph17 km/h	44%	71%	2
Sun 12p	Cloudy	64°18° (likely 64°18° to 68°20°)	64°18°	0%	1 mph2 km/h from S, gusts 10 mph17 km/h	36%	74%	3
Sun 1p	Partly sunny	68°20° (likely 67°19° to 69°21°)	68°20°	0%	1 mph2 km/h from S, gusts 10 mph16 km/h	30%	81%	4
Sun 2p	Cloudy	70°21° (likely 67°19° to 70°21°)	70°21°	0%	5 mph8 km/h from SW, gusts 10 mph15 km/h	28%	88%	4
Sun 3p	Cloudy	70°21° (likely 64°18° to 70°21°)	70°21°	0%	5 mph8 km/h from SW, gusts 11 mph18 km/h	29%	90%	3
Sun 4p	Cloudy	69°21° (likely 61°16° to 69°21°)	69°21°	0%	5 mph8 km/h from SW, gusts 11 mph17 km/h	33%	93%	2
Sun 5p	Partly sunny	66°19° (likely 57°14° to 66°19°)	66°19°	0%	5 mph8 km/h from WSW, gusts 11 mph17 km/h	39%	79%	1
Sun 6p	Partly cloudy	62°17° (likely 52°11° to 62°17°)	62°17°	0%	5 mph8 km/h from WSW, gusts 10 mph17 km/h	46%	52%	0
Sun 7p	Clear	57°14° (likely 49°9° to 57°14°)	57°14°	0%	5 mph8 km/h from WSW, gusts 10 mph17 km/h	54%	26%	0
Sun 8p	Clear	53°12° (likely 47°8° to 53°12°)	53°12°	0%	0 mph0 km/h, gusts 10 mph16 km/h	61%	21%	0
Sun 9p	Clear	50°10° (likely 46°8° to 50°10°)	50°10°	0%	0 mph0 km/h, gusts 8 mph13 km/h	66%	23%	0
Sun 10p	Clear	48°9° (likely 44°7° to 48°9°)	48°9°	0%	0 mph0 km/h, gusts 5 mph8 km/h	70%	18%	0
Sun 11p	Mostly clear	46°8° (likely 44°7° to 47°8°)	46°8°	0%	1 mph2 km/h from E, gusts 4 mph6 km/h	74%	31%	0
Mon 12a	Clear	45°7° (likely 43°6° to 47°8°)	45°7°	0%	1 mph2 km/h from E, gusts 3 mph5 km/h	77%	25%	0
Mon 1a	Clear	44°7° (likely 42°6° to 46°8°)	44°7°	0%	1 mph2 km/h from E, gusts 3 mph5 km/h	80%	17%	0
Mon 2a	Clear	43°6° (likely 41°5° to 46°8°)	43°6°	0%	1 mph2 km/h from NE, gusts 3 mph5 km/h	83%	19%	0

Days ahead

Shaded: typical range for these dates (1991–2020)

Today, Oct 24. Sunny. High 73°23°, low 36°2°. Typical 75°24° / 42°6°. Dry. Mostly agree. Best day outdoors this week.
1. Morning
  6 AM–noon
  Sunny, 36°2°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Clear, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 41°5°
  Dry
Official NWS forecast
Today: Areas of frost before 11am. Sunny. High near 73, with temperatures falling to around 69 in the afternoon. Southwest wind 0 to 8 mph.
Tonight: Areas of frost after 5am. Clear, with a low around 36. South wind around 1 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Best day outdoors this week: the one dry, mild day the forecasts agree on (high 73°23°).
High, likely
69°21°–76°24°
Low, likely
36°2°–47°8°
Typical high / low
75°24° / 42°6°
Wind
9 mph14 km/h, gusts 14 mph23 km/h
UV peak
5
Tomorrow, Oct 25. Cloudy. High 70°21°, low 36°2°. Typical 74°23° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 39°4°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 53°12°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 43°6°
  Dry
Official NWS forecast
Day: Mostly sunny, with a high near 70. South southeast wind 1 to 5 mph.
Night: Areas of fog and patchy frost after 5am. Partly cloudy, with a low around 36. North northeast wind 0 to 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
67°19°–70°21°
Low, likely
36°2°–46°8°
Typical high / low
74°23° / 42°6°
Wind
11 mph17 km/h, gusts 18 mph29 km/h
UV peak
4
Monday, Oct 26. Drizzle. High 62°17°, low 36°2°. Typical 74°23° / 41°5°. Rain 0.01 in0.3 mm, 20% chance. Forecasts agree.
1. Morning
  6 AM–noon
  Drizzle, 46°8°
  20% chance · 0.01 in0.3 mm
2. Afternoon
  noon–6 PM
  Sunny, 61°16°
  Dry
3. Evening
  6 PM–midnight
  Clear, 48°9°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 40°5°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Areas of fog and patchy frost before 8am, then patchy frost and patchy fog between 8am and 11am, then a slight chance of rain between 11am and 5pm. Mostly sunny, with a high near 62. West northwest wind 0 to 8 mph, with gusts as high as 18 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Night: Patchy fog after 2am. Partly cloudy, with a low around 36.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
60°16°–62°17°
Low, likely
36°2°–43°6°
Typical high / low
74°23° / 41°5°
Wind
9 mph15 km/h, gusts 23 mph36 km/h
UV peak
4
Tuesday, Oct 27. Fog. High 62°17°, low 36°2°. Typical 74°23° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 40°5°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 63°17°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 47°9°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 41°5°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog before 8am. Mostly sunny, with a high near 62.
Night: Patchy fog after 11pm. Partly cloudy, with a low around 36.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
61°16°–65°18°
Low, likely
36°2°–40°4°
Typical high / low
74°23° / 41°5°
Wind
12 mph19 km/h, gusts 18 mph29 km/h
UV peak
4
Wednesday, Oct 28. Fog. High 65°18°, low 36°2°. Typical 73°23° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 43°6°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 50°10°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 45°7°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog before 11am. Mostly sunny, with a high near 65.
Night: Areas of fog after 2am. Partly cloudy, with a low around 36.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–67°19°
Low, likely
36°2°–41°5°
Typical high / low
73°23° / 41°5°
Wind
9 mph14 km/h, gusts 15 mph24 km/h
UV peak
4
Thursday, Oct 29. Cloudy. High 63°17°, low 37°3°. Typical 72°22° / 41°5°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 43°6°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 60°15°
  Dry
3. Evening
  6 PM–midnight
  Clear, 46°8°
  20% chance
4. Overnight
  midnight–6 AM
  Clear, 40°4°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Areas of fog before 11am. Mostly sunny, with a high near 63.
Night: Areas of fog and a slight chance of rain after 11pm. Partly cloudy, with a low around 37.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
57°14°–63°17°
Low, likely
37°3°–43°6°
Typical high / low
72°22° / 41°5°
Wind
10 mph16 km/h, gusts 24 mph39 km/h
UV peak
4
Friday, Oct 30. Rain. High 61°16°, low 38°3°. Typical 72°22° / 41°5°. Rain 0.02 in0.5 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 40°5°
  20% chance
2. Afternoon
  noon–6 PM
  Cloudy, 57°14°
  20% chance · 0.01 in0.3 mm
3. Evening
  6 PM–midnight
  Mostly clear, 45°7°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 38°3°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Areas of fog and a chance of rain. Partly sunny, with a high near 61.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
53°12°–61°16°
Low, likely
37°3°–40°4°
Typical high / low
72°22° / 41°5°
Wind
6 mph10 km/h, gusts 20 mph33 km/h
UV peak
3
Saturday, Oct 31. Cloudy. High 59°15°, low 38°3°. Typical 72°22° / 40°4°. Rain 0.05 in1.3 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 41°5°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 59°15°
  20% chance
3. Evening
  6 PM–midnight
  Cloudy, 47°8°
  20% chance
4. Overnight
  midnight–6 AM
  Clear, 41°5°
  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.
High, likely
52°11°–69°21°
Low, likely
34°1°–43°6°
Typical high / low
72°22° / 40°4°
Wind
6 mph10 km/h, gusts 17 mph28 km/h
UV peak
3
Sunday, Nov 1. Sunny. High 64°18°, low 39°4°. Typical 71°22° / 40°4°. Rain, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 53°12°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 47°8°
  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.
High, likely
53°12°–72°22°
Low, likely
36°2°–50°10°
Typical high / low
71°22° / 40°4°
Wind
9 mph15 km/h, gusts 23 mph37 km/h
UV peak
2
Monday, Nov 2. Cloudy. High 62°17°, low 43°6°. Typical 70°21° / 40°4°. Rain 0.1 in2.5 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 54°12°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 66°19°
  30% chance · 0.06 in1.4 mm
3. Evening
  6 PM–midnight
  Cloudy, 50°10°
  30% chance · 0.15 in3.8 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.
High, likely
51°11°–75°24°
Low, likely
33°1°–55°13°
Typical high / low
70°21° / 40°4°
Wind
10 mph16 km/h, gusts 20 mph32 km/h
UV peak
4

10 days15 days30 days

The outlook

Today
Dry, high 73°, low 36°.
Tomorrow
Dry, high 70°, low 36°, cooling off.
Monday
Dry, high 62°, low 36°, cooling off.
Rest of week
Mostly dry, highs 59–65°.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (EKA) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue

Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Navarro River near Navarro

24 mi

Below flood stage

Level: 1.2 ft
Flow: 6 cfs

Forecast peak 0.8 ft Sat 3 AM

Reading from Sat 1:15 AM · NWS gauge page

East Fork Russian River near Calpella

16 mi

Level: 5.2 ft
Flow: 23 cfs

Reading from Sat 1:15 AM · NWS gauge page

Coyote Reservior at (Lake Mendocino)

17 mi

Level: 727 ft
Flow: 51,200 cfs

Reading from Sat 12 AM · NWS gauge page

Russian River near Ukiah

17 mi

Level: 4.0 ft
Flow: 1 cfs

Reading from Sat 2 AM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Heating this week

About 51% less heating than a typical week.

This week 26Typical 54

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 21
h below 17°F: 0
h below 5°F: 0

47, 17 and 5°F are the test points heat pumps are rated at. About 1 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 43°F).

Open the windows?

Today, 11:00 AM–7:00 PM

Good stretch to open the windows.

Is this typical?

Potter Valley Powerhouse · official normals 1991–2020 · records 1937–2026

Oct 24, today vs a typical year

Today’s expected high is 2°1° colder than typical.

Last 7 days vs normal

On average 6°3° warmer than normal (daily mean temperature).

+9°+5°SatOct 17
+12°+7°SunOct 18
+7°+4°MonOct 19
−1°TueOct 20
+2°+1°WedOct 21
+5°+3°ThuOct 22
—FriOct 23

Willits weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 49 min; Losing 2 min 21 s a day; shortest Dec 21, 1 h 25 min less
Golden hour: 5:44–6:38 PM; Morning 7:16–8:10 AM
Blue hour: 6:38–6:49 PM; Morning 7:05–7:16 AM; first light 7:05 AM

Stars tonight? Fair

Clear 3:21–7:05 AM, but the moon is 96% lit and up.

Moon

Waxing gibbous

96% lit · growing

Today: sets 5:54 AM · rises 5:21 PM
Full moon: Oct 25
New moon: Nov 8

Looking northeast from Willits. The highest point on the skyline is about 6,100 ft, 16 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

1 active weather alert

Freeze Warning