Model estimate for 4:00 AM PDT (no recent station report)

Johnsville, CA weather

Mostly clear and 34°1°.

Mostly agree

Now 34°1°

Mostly clear · Feels like 27°−3°

Feels like: 26°−3°; Wind chill from 10 mph16 km/h wind · air 34°1°
Wind: 10 mph16 km/hgusts 22 mph36 km/h; From the east. 58–10 mph16 km/h through 4 PM
Dew point: 25°−4°; Dry · up to 33°1° by 12 PM
UV index: 0Low; Moderate 11 AM–4 PM · peak 4
Air quality: 21Good; PM2.5 (fine particles) · tomorrow moderate

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Below freezing today 6–10 AM (low 30°−1°)
Above 40°4° today by 11 AM
Below 50°10° tonight after 8 PM
Below freezing tomorrow 7–9 AM (low 31°−1°)
Gusts to 27 mph43 km/h tomorrow 5–7 PM

TonightNear 34°1° · Partly cloudy
This morningUp to 45°7° by 11 AM · freezing, low 30°−1° · Partly cloudy
This afternoonUp to 60°16° by 4 PM · Clear
TonightDown to 33°1° by 5 AM · Clear
Tomorrow morningUp to 51°11° by 11 AM · freezing, low 31°−1° · Mostly cloudy
Tomorrow afternoonUp to 62°17° by 3 PM · gusts to 27 mph43 km/h · Mostly cloudy
Tomorrow nightDown to 38°3° by 3 AM · gusts to 27 mph43 km/h · 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 4a	Mostly clear	34°1° (likely 34°1° to 39°4°)	27°−3°	0%	10 mph16 km/h from E, gusts 22 mph36 km/h	70%	50%	0
Sat 5a	Mostly clear	33°1° (likely 33°1° to 38°3°)	26°−3°	5%	10 mph16 km/h from SE, gusts 20 mph33 km/h	73%	49%	0
Sat 6a	Mostly clear	31°−1° (likely 31°−1° to 38°3°)	24°−4°	5%	10 mph16 km/h from SE, gusts 20 mph33 km/h	81%	52%	0
Sat 7a	Mostly sunny	31°−1° (likely 31°−1° to 38°3°)	24°−4°	5%	10 mph16 km/h from SE, gusts 19 mph31 km/h	82%	56%	0
Sat 8a	Mostly sunny	30°−1° (likely 30°−1° to 38°3°)	22°−6°	5%	10 mph16 km/h from SE, gusts 18 mph30 km/h	87%	58%	0
Sat 9a	Mostly sunny	32°0° (likely 32°0° to 41°5°)	25°−4°	5%	10 mph16 km/h from SE, gusts 20 mph33 km/h	84%	51%	0
Sat 10a	Sunny	39°4° (likely 39°4° to 45°7°)	33°1°	5%	10 mph16 km/h from SE, gusts 23 mph37 km/h	72%	10%	1
Sat 11a	Sunny	45°7° (likely 45°7° to 49°9°)	42°6°	0%	5 mph8 km/h from E, gusts 23 mph37 km/h	61%	5%	3
Sat 12p	Sunny	50°10° (likely 50°10° to 52°11°)	48°9°	0%	5 mph8 km/h from E, gusts 20 mph32 km/h	52%	3%	4
Sat 1p	Sunny	55°13° (likely 53°12° to 55°13°)	55°13°	0%	5 mph8 km/h from E, gusts 18 mph28 km/h	41%	3%	4
Sat 2p	Sunny	58°14° (likely 55°13° to 58°14°)	58°14°	0%	5 mph8 km/h from E, gusts 14 mph22 km/h	35%	3%	4
Sat 3p	Sunny	59°15° (likely 56°13° to 59°15°)	59°15°	0%	5 mph8 km/h from E, gusts 12 mph19 km/h	35%	3%	3
Sat 4p	Sunny	60°16° (likely 55°13° to 60°16°)	60°16°	0%	5 mph8 km/h from E, gusts 10 mph16 km/h	35%	1%	2
Sat 5p	Sunny	58°14° (likely 53°12° to 58°14°)	58°14°	0%	0 mph0 km/h, gusts 8 mph13 km/h	36%	0%	1
Sat 6p	Clear	54°12° (likely 48°9° to 54°12°)	54°12°	0%	0 mph0 km/h, gusts 7 mph12 km/h	46%	0%	0
Sat 7p	Clear	50°10° (likely 43°6° to 50°10°)	50°10°	0%	0 mph0 km/h, gusts 6 mph10 km/h	53%	11%	0
Sat 8p	Clear	45°7° (likely 40°4° to 47°8°)	43°6°	0%	5 mph8 km/h from SE, gusts 6 mph10 km/h	57%	12%	0
Sat 9p	Clear	43°6° (likely 38°3° to 45°7°)	40°4°	0%	5 mph8 km/h from SE, gusts 7 mph11 km/h	60%	5%	0
Sat 10p	Clear	42°6° (likely 37°3° to 43°6°)	39°4°	0%	5 mph8 km/h from SE, gusts 6 mph9 km/h	61%	0%	0
Sat 11p	Clear	40°4° (likely 36°2° to 42°6°)	37°3°	0%	5 mph8 km/h from SE, gusts 4 mph7 km/h	64%	5%	0
Sun 12a	Clear	38°3° (likely 35°2° to 41°5°)	34°1°	0%	5 mph8 km/h from SE, gusts 5 mph9 km/h	68%	0%	0
Sun 1a	Clear	37°3° (likely 35°2° to 41°5°)	33°1°	0%	5 mph8 km/h from SE, gusts 5 mph8 km/h	69%	18%	0
Sun 2a	Mostly clear	37°3° (likely 34°1° to 41°5°)	37°3°	0%	0 mph0 km/h, gusts 4 mph7 km/h	70%	39%	0
Sun 3a	Mostly clear	36°2° (likely 34°1° to 43°6°)	36°2°	0%	0 mph0 km/h, gusts 4 mph7 km/h	70%	43%	0
Sun 4a	Mostly clear	35°2° (likely 34°1° to 42°6°)	35°2°	0%	0 mph0 km/h, gusts 6 mph9 km/h	70%	50%	0
Sun 5a	Cloudy	33°1° (likely 33°1° to 42°6°)	33°1°	0%	0 mph0 km/h, gusts 8 mph12 km/h	72%	61%	0
Sun 6a	Cloudy	33°1° (likely 33°1° to 41°5°)	33°1°	0%	0 mph0 km/h, gusts 7 mph12 km/h	78%	62%	0
Sun 7a	Cloudy	32°0° (likely 32°0° to 41°5°)	32°0°	0%	0 mph0 km/h, gusts 7 mph11 km/h	79%	61%	0
Sun 8a	Cloudy	31°−1° (likely 31°−1° to 40°4°)	31°−1°	0%	0 mph0 km/h, gusts 7 mph11 km/h	83%	61%	0
Sun 9a	Mostly sunny	35°2° (likely 35°2° to 43°6°)	35°2°	0%	0 mph0 km/h, gusts 9 mph14 km/h	76%	60%	1
Sun 10a	Mostly sunny	44°7° (likely 44°7° to 51°11°)	44°7°	0%	0 mph0 km/h, gusts 13 mph20 km/h	62%	58%	2
Sun 11a	Sunny	51°11° (likely 51°11° to 55°13°)	51°11°	0%	5 mph8 km/h from SW, gusts 16 mph26 km/h	51%	68%	3
Sun 12p	Sunny	56°13° (likely 55°13° to 58°14°)	56°13°	0%	5 mph8 km/h from SW, gusts 18 mph29 km/h	43%	68%	4
Sun 1p	Sunny	60°16° (likely 56°13° to 60°16°)	60°16°	0%	5 mph8 km/h from SW, gusts 21 mph34 km/h	36%	74%	4
Sun 2p	Partly sunny	61°16° (likely 56°13° to 61°16°)	61°16°	0%	5 mph8 km/h from SW, gusts 24 mph39 km/h	33%	76%	4
Sun 3p	Partly sunny	62°17° (likely 55°13° to 62°17°)	62°17°	0%	5 mph8 km/h from SW, gusts 25 mph39 km/h	33%	80%	3
Sun 4p	Cloudy	60°16° (likely 53°12° to 60°16°)	60°16°	0%	5 mph8 km/h from SW, gusts 24 mph39 km/h	35%	82%	2
Sun 5p	Cloudy	58°14° (likely 51°11° to 58°14°)	58°14°	0%	5 mph8 km/h from SW, gusts 27 mph43 km/h	40%	83%	1
Sun 6p	Cloudy	54°12° (likely 49°9° to 54°12°)	54°12°	0%	5 mph8 km/h from SW, gusts 27 mph43 km/h	48%	84%	0
Sun 7p	Cloudy	50°10° (likely 46°8° to 50°10°)	49°9°	0%	5 mph8 km/h from SW, gusts 24 mph39 km/h	54%	83%	0
Sun 8p	Partly cloudy	47°8° (likely 44°7° to 47°8°)	46°8°	0%	5 mph8 km/h from SW, gusts 20 mph31 km/h	58%	44%	0
Sun 9p	Mostly clear	45°7° (likely 42°6° to 46°8°)	44°7°	0%	5 mph8 km/h from SW, gusts 19 mph31 km/h	61%	30%	0
Sun 10p	Clear	43°6° (likely 41°5° to 46°8°)	41°5°	0%	5 mph8 km/h from SW, gusts 21 mph34 km/h	63%	24%	0
Sun 11p	Clear	43°6° (likely 39°4° to 45°7°)	39°4°	0%	5 mph8 km/h from S, gusts 22 mph35 km/h	64%	16%	0
Mon 12a	Clear	41°5° (likely 38°3° to 46°8°)	37°3°	0%	5 mph8 km/h from S, gusts 24 mph39 km/h	66%	26%	0
Mon 1a	Clear	40°4° (likely 36°2° to 46°8°)	36°2°	0%	5 mph8 km/h from S, gusts 25 mph40 km/h	68%	7%	0
Mon 2a	Mostly clear	39°4° (likely 36°2° to 45°7°)	36°2°	0%	5 mph8 km/h from S, gusts 25 mph41 km/h	70%	10%	0
Mon 3a	Clear	38°3° (likely 36°2° to 44°7°)	34°1°	0%	5 mph8 km/h from S, gusts 25 mph41 km/h	71%	12%	0

Days ahead

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

Today, Oct 24. Mostly sunny. High 60°16°, low 30°−1°. Typical 63°17° / 28°−2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 30°−1°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 60°16°
  Dry
3. Evening
  6 PM–midnight
  Clear, 45°7°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 33°1°
  Dry
Official NWS forecast
Today: Sunny, with a high near 60. East wind 0 to 10 mph, with gusts as high as 20 mph.
Tonight: Mostly clear, with a low around 30. Southeast wind around 10 mph, with gusts as high as 20 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
56°13°–60°16°
Low, likely
30°−1°–37°3°
Typical high / low
63°17° / 28°−2°
Wind
11 mph18 km/h, gusts 40 mph64 km/h
UV peak
5
Tomorrow, Oct 25. Cloudy. High 62°17°, low 33°1°. Typical 62°17° / 28°−2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 31°−1°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 47°8°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 38°3°
  Dry
Official NWS forecast
Day: Sunny, with a high near 62. South wind 0 to 5 mph.
Night: Partly cloudy, with a low around 33. Southwest wind around 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
56°13°–62°17°
Low, likely
33°1°–39°4°
Typical high / low
62°17° / 28°−2°
Wind
13 mph20 km/h, gusts 38 mph61 km/h
UV peak
4
Monday, Oct 26. Mostly sunny. High 56°13°, low 26°−3°. Typical 62°17° / 27°−3°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 40°4°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 50°10°
  Dry
3. Evening
  6 PM–midnight
  Clear, 38°3°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 31°0°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 56. Southwest wind 5 to 10 mph, with gusts as high as 25 mph.
Night: Partly cloudy, with a low around 26.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
48°9°–56°13°
Low, likely
26°−3°–35°2°
Typical high / low
62°17° / 27°−3°
Wind
17 mph27 km/h, gusts 45 mph72 km/h
UV peak
5
Tuesday, Oct 27. Mostly sunny. High 61°16°, low 30°−1°. Typical 62°17° / 27°−3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 31°0°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 54°12°
  Dry
3. Evening
  6 PM–midnight
  Clear, 37°3°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 32°0°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 61.
Night: Partly cloudy, with a low around 30.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
52°11°–61°16°
Low, likely
29°−2°–32°0°
Typical high / low
62°17° / 27°−3°
Wind
11 mph17 km/h, gusts 34 mph54 km/h
UV peak
5
Wednesday, Oct 28. Partly sunny. High 60°16°, low 33°1°. Typical 61°16° / 27°−3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 32°0°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 54°12°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 39°4°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 37°3°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 60.
Night: Partly cloudy, with a low around 33.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
52°11°–60°16°
Low, likely
27°−3°–34°1°
Typical high / low
61°16° / 27°−3°
Wind
10 mph16 km/h, gusts 28 mph45 km/h
UV peak
5
Thursday, Oct 29. Partly sunny. High 56°13°, low 32°0°. Typical 61°16° / 27°−3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 38°3°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 47°9°
  Dry
3. Evening
  6 PM–midnight
  Clear, 37°3°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 34°1°
  30% chance · 0.01 in0.3 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 56.
Night: A chance of rain after 11pm. Partly cloudy, with a low around 32.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
46°8°–56°13°
Low, likely
32°0°–38°3°
Typical high / low
61°16° / 27°−3°
Wind
16 mph26 km/h, gusts 39 mph62 km/h
UV peak
3
Friday, Oct 30. Rain. High 52°11°, low 30°−1°. Typical 60°16° / 27°−3°. Rain 0.05 in1.3 mm, 40% chance. Mostly agree.
1. Morning
  6 AM–noon
  Snow showers, 34°1°
  30% chance
2. Afternoon
  noon–6 PM
  Cloudy, 43°6°
  30% chance
3. Evening
  6 PM–midnight
  Mostly clear, 34°1°
  30% chance
4. Overnight
  midnight–6 AM
  Clear, 30°−1°
  30% chance · 0.2 in0.5 cm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain. Partly sunny, with a high near 52.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
41°5°–52°11°
Low, likely
26°−3°–35°2°
Typical high / low
60°16° / 27°−3°
Wind
11 mph18 km/h, gusts 35 mph56 km/h
UV peak
3
Saturday, Oct 31. Mostly sunny. High 44°7°, low 23°−5°. Typical 60°16° / 26°−3°. Rain 0.09 in2.3 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 27°−3°
  30% chance · 0.4 in0.9 cm
2. Afternoon
  noon–6 PM
  Mostly sunny, 46°8°
  20% chance
3. Evening
  6 PM–midnight
  Clear, 31°−1°
  20% chance
4. Overnight
  midnight–6 AM
  Clear, 24°−4°
  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
36°2°–56°13°
Low, likely
20°−7°–26°−3°
Typical high / low
60°16° / 26°−3°
Wind
8 mph13 km/h, gusts 28 mph44 km/h
UV peak
4
Sunday, Nov 1. Cloudy. High 47°8°, low 24°−4°. Typical 59°15° / 26°−3°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 28°−2°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 48°9°
  Dry
3. Evening
  6 PM–midnight
  Clear, 36°2°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 29°−1°
  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
39°4°–57°14°
Low, likely
18°−8°–27°−3°
Typical high / low
59°15° / 26°−3°
Wind
7 mph12 km/h, gusts 18 mph29 km/h
UV peak
4
Monday, Nov 2. Drizzle. High 47°8°, low 28°−2°. Typical 59°15° / 26°−3°. Rain 0.02 in0.5 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 35°2°
  20% chance
2. Afternoon
  noon–6 PM
  Partly sunny, 51°10°
  30% chance
3. Evening
  6 PM–midnight
  Cloudy, 37°3°
  30% chance · 0.01 in0.3 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.
High, likely
40°4°–53°12°
Low, likely
22°−6°–34°1°
Typical high / low
59°15° / 26°−3°
Wind
6 mph9 km/h, gusts 21 mph33 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 60°, low 30°.
Tomorrow
Dry, high 62°, low 33°.
Monday
Dry, high 56°, low 26°, cooling off.
Rest of week
Mostly dry, highs 44–61°.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (REV) (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

Middle Fork Feather River near Portola

14 mi

Below flood stage

Level: 4846 ft
Flow: 24 cfs

Forecast peak 4846 ft Sat 5 AM

Reading from Sat 3:30 AM · NWS gauge page

Spanish Creek above Keddie

21 mi

Level: 1.1 ft
Flow: 37 cfs

Reading from Sat 3:30 AM · NWS gauge page

North Fork Yuba River below Goodyears Bar

21 mi

Level: 1.7 ft
Flow: 125 cfs

Reading from Sat 2:45 AM · NWS gauge page

Indian Creek below Indian Falls

24 mi

Level: 3111 ft
Flow: 73 cfs

Reading from Sat 3 AM · NWS gauge page

For your home

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

Heating this week

About 72% less heating than a typical week.

This week 40Typical 144

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 30
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 5 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 25°F).

Open the windows?

Sun, 1:00 PM–4:00 PM

Good stretch to open the windows.

Is this typical?

Portola · official normals 1991–2020 · records 1915–2026

Oct 24, today vs a typical year

Today’s expected high is 3°2° colder than typical.

Last 7 days vs normal

—SunOct 18
—MonOct 19
—TueOct 20
—WedOct 21
—ThuOct 22
—FriOct 23
—SatOct 24

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

Sun & moon

Sun

Daylight: 10 h 48 min; Losing 2 min 25 s a day; shortest Dec 21, 1 h 27 min less
Golden hour: 5:33–6:27 PM; Morning 7:05–8:00 AM
Blue hour: 6:27–6:38 PM; Morning 6:55–7:05 AM; first light 6:55 AM

Stars tonight? Poor

Clouds most of the night (about 50% cover).

Moon

Waxing gibbous

96% lit · growing

Today: sets 5:43 AM · rises 5:10 PM
Full moon: Oct 25
New moon: Nov 8

Looking south from Johnsville. The highest point on the skyline is about 10,100 ft, 48 mi away.Skyline from USGS elevation data, heights drawn up to 2× taller. Sky, sun and moon as they are now.