Observed 8:20 AM PDT at KSAC

Thornton, CA weather

Sunny and 52°11°.

Mostly agree

Now 52°11°

Sunny

Wind: Calm; Up to 5 mph8 km/h through 8 PM
Dew point: 41°5°; Comfortable · up to 49°9° by 6 PM
UV index: 0Low; Moderate 11 AM–4 PM · peak 4
Air quality: 16Good; Main pollutant: Ozone
Pressure: 30.06 inHg1018 hPa; Rising slowly · +0.02 inHg+0.8 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

10°5° cooler than this time yesterday (58°14° then, 48°9° now)

Good hours for

Above 60°16° today by 11 AM
High 72°22° today at 5 PM
Below 60°16° tonight after 9 PM

This morningUp to 62°17° by 11 AM · Clear
This afternoonUp to 72°22° by 5 PM · Clear
TonightDown to 45°7° by 5 AM · Clear
Tomorrow morningUp to 63°17° by 11 AM · Partly cloudy
Tomorrow afternoonUp to 74°23° by 5 PM · Mostly cloudy
Tomorrow nightDown to 47°8° by 5 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 8a	Sunny	45°7° (likely 45°7° to 49°9°)	43°6°	0%	3 mph5 km/h from N, gusts 6 mph10 km/h	78%	0%	0
Sat 9a	Sunny	50°10° (likely 49°9° to 53°12°)	48°9°	0%	5 mph8 km/h from N, gusts 3 mph6 km/h	71%	0%	0
Sat 10a	Sunny	57°14° (likely 54°12° to 58°14°)	57°14°	0%	3 mph5 km/h from NNE, gusts 4 mph6 km/h	56%	0%	1
Sat 11a	Sunny	62°17° (likely 58°14° to 62°17°)	62°17°	0%	3 mph5 km/h from NNE, gusts 4 mph7 km/h	48%	0%	3
Sat 12p	Sunny	65°18° (likely 62°17° to 66°19°)	65°18°	0%	3 mph5 km/h from N, gusts 4 mph6 km/h	44%	0%	4
Sat 1p	Sunny	68°20° (likely 66°19° to 69°21°)	68°20°	0%	3 mph5 km/h from NE, gusts 4 mph6 km/h	40%	0%	4
Sat 2p	Sunny	70°21° (likely 68°20° to 71°22°)	70°21°	0%	3 mph5 km/h from ESE, gusts 3 mph5 km/h	39%	0%	4
Sat 3p	Sunny	71°22° (likely 69°21° to 72°22°)	71°22°	0%	2 mph3 km/h from SSE, gusts 3 mph5 km/h	39%	0%	3
Sat 4p	Sunny	71°22° (likely 70°21° to 73°23°)	71°22°	0%	2 mph3 km/h from SSE, gusts 2 mph4 km/h	39%	0%	2
Sat 5p	Sunny	72°22° (likely 69°21° to 72°22°)	72°22°	0%	0 mph0 km/h, gusts 3 mph5 km/h	40%	0%	2
Sat 6p	Clear	68°20° (likely 65°18° to 69°21°)	68°20°	0%	1 mph2 km/h from SSE, gusts 5 mph8 km/h	51%	0%	0
Sat 7p	Clear	64°18° (likely 61°16° to 64°18°)	64°18°	0%	2 mph3 km/h from SSE, gusts 7 mph11 km/h	62%	0%	0
Sat 8p	Clear	61°16° (likely 58°14° to 61°16°)	61°16°	0%	2 mph3 km/h from SSE, gusts 6 mph9 km/h	70%	0%	0
Sat 9p	Clear	56°13° (likely 55°13° to 59°15°)	56°13°	0%	0 mph0 km/h, gusts 6 mph9 km/h	76%	0%	0
Sat 10p	Clear	54°12° (likely 53°12° to 57°14°)	54°12°	0%	0 mph0 km/h, gusts 6 mph9 km/h	80%	2%	0
Sat 11p	Clear	53°12° (likely 51°11° to 56°13°)	53°12°	0%	0 mph0 km/h, gusts 6 mph9 km/h	85%	28%	0
Sun 12a	Clear	51°11° (likely 50°10° to 55°13°)	51°11°	0%	0 mph0 km/h, gusts 5 mph9 km/h	87%	30%	0
Sun 1a	Clear	49°9° (likely 49°9° to 54°12°)	49°9°	0%	0 mph0 km/h, gusts 5 mph8 km/h	91%	0%	0
Sun 2a	Clear	48°9° (likely 47°8° to 53°12°)	48°9°	0%	1 mph2 km/h from SE, gusts 5 mph8 km/h	91%	2%	0
Sun 3a	Clear	48°9° (likely 46°8° to 52°11°)	48°9°	0%	0 mph0 km/h, gusts 5 mph8 km/h	90%	39%	0
Sun 4a	Clear	46°8° (likely 45°7° to 51°11°)	46°8°	0%	0 mph0 km/h, gusts 4 mph7 km/h	92%	41%	0
Sun 5a	Mostly clear	45°7° (likely 44°7° to 50°10°)	45°7°	0%	0 mph0 km/h, gusts 4 mph7 km/h	93%	44%	0
Sun 6a	Mostly clear	44°7° (likely 44°7° to 49°9°)	44°7°	0%	0 mph0 km/h, gusts 5 mph8 km/h	96%	56%	0
Sun 7a	Mostly sunny	43°6° (likely 43°6° to 49°9°)	43°6°	0%	0 mph0 km/h, gusts 4 mph6 km/h	97%	52%	0
Sun 8a	Mostly sunny	44°7° (likely 43°6° to 49°9°)	44°7°	0%	1 mph2 km/h from NE, gusts 3 mph5 km/h	97%	51%	0
Sun 9a	Mostly sunny	49°9° (likely 47°8° to 53°12°)	49°9°	0%	1 mph2 km/h from NE, gusts 3 mph4 km/h	86%	59%	1
Sun 10a	Cloudy	58°14° (likely 53°12° to 59°15°)	58°14°	0%	1 mph2 km/h from NE, gusts 2 mph3 km/h	69%	71%	2
Sun 11a	Mostly sunny	63°17° (likely 59°15° to 65°18°)	63°17°	0%	2 mph3 km/h from E, gusts 3 mph4 km/h	60%	55%	3
Sun 12p	Cloudy	67°19° (likely 63°17° to 69°21°)	67°19°	0%	2 mph3 km/h from E, gusts 6 mph9 km/h	54%	57%	4
Sun 1p	Cloudy	70°21° (likely 67°19° to 73°23°)	70°21°	0%	2 mph3 km/h from E, gusts 7 mph11 km/h	50%	69%	4
Sun 2p	Cloudy	72°22° (likely 69°21° to 75°24°)	72°22°	0%	2 mph3 km/h from SSW, gusts 7 mph12 km/h	48%	83%	4
Sun 3p	Cloudy	73°23° (likely 71°22° to 76°24°)	73°23°	0%	2 mph3 km/h from SSW, gusts 8 mph12 km/h	47%	84%	3
Sun 4p	Cloudy	73°23° (likely 71°22° to 76°24°)	73°23°	0%	2 mph3 km/h from SSW, gusts 7 mph11 km/h	48%	84%	2
Sun 5p	Cloudy	74°23° (likely 70°21° to 75°24°)	74°23°	0%	2 mph3 km/h from WSW, gusts 6 mph9 km/h	47%	85%	1
Sun 6p	Cloudy	70°21° (likely 67°19° to 71°22°)	70°21°	0%	2 mph3 km/h from WSW, gusts 9 mph14 km/h	54%	89%	0
Sun 7p	Cloudy	67°19° (likely 63°17° to 67°19°)	67°19°	0%	2 mph3 km/h from WSW, gusts 9 mph14 km/h	63%	89%	0
Sun 8p	Cloudy	63°17° (likely 60°16° to 63°17°)	63°17°	0%	1 mph2 km/h from W, gusts 11 mph18 km/h	71%	83%	0
Sun 9p	Partly cloudy	60°16° (likely 57°14° to 61°16°)	60°16°	0%	1 mph2 km/h from W, gusts 16 mph25 km/h	77%	78%	0
Sun 10p	Partly cloudy	57°14° (likely 56°13° to 59°15°)	57°14°	0%	1 mph2 km/h from W, gusts 17 mph27 km/h	81%	42%	0
Sun 11p	Clear	55°13° (likely 55°13° to 58°14°)	55°13°	0%	2 mph3 km/h from W, gusts 16 mph25 km/h	84%	2%	0
Mon 12a	Clear	53°12° (likely 53°12° to 57°14°)	53°12°	0%	2 mph3 km/h from W, gusts 10 mph16 km/h	88%	3%	0
Mon 1a	Clear	51°11° (likely 51°11° to 56°13°)	51°11°	0%	2 mph3 km/h from W, gusts 5 mph7 km/h	91%	4%	0
Mon 2a	Clear	50°10° (likely 50°10° to 55°13°)	49°9°	0%	5 mph8 km/h from WSW, gusts 5 mph8 km/h	94%	2%	0
Mon 3a	Clear	49°9° (likely 49°9° to 54°12°)	47°8°	0%	5 mph8 km/h from WSW, gusts 6 mph10 km/h	96%	2%	0
Mon 4a	Clear	48°9° (likely 48°9° to 53°12°)	46°8°	0%	5 mph8 km/h from WSW, gusts 8 mph12 km/h	97%	5%	0
Mon 5a	Clear	47°8° (likely 47°8° to 53°12°)	46°8°	0%	3 mph5 km/h from SSW, gusts 9 mph15 km/h	98%	8%	0
Mon 6a	Mostly clear	45°7° (likely 45°7° to 53°12°)	44°7°	0%	3 mph5 km/h from SSW, gusts 8 mph13 km/h	100%	11%	0
Mon 7a	Mostly sunny	44°7° (likely 43°6° to 52°11°)	43°6°	0%	3 mph5 km/h from SSW, gusts 7 mph11 km/h	100%	14%	0

Days ahead

Tap a day for its hours and the official wording.

Today, Oct 24. Sunny. High 72°22°, low 43°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 72°22°
  Dry
3. Evening
  6 PM–midnight
  Clear, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 45°7°
  Dry
Official NWS forecast
Today: Sunny, with a high near 72. Northeast wind 0 to 5 mph.
Tonight: Clear. Low around 43, with temperatures rising to around 45 overnight. East northeast wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
70°21°–73°23°
Low, likely
43°6°–49°9°
Wind
10 mph16 km/h, gusts 20 mph31 km/h
UV peak
5
Tomorrow, Oct 25. Cloudy. High 74°23°, low 44°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 44°7°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 74°23°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 63°17°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 47°8°
  Dry
Official NWS forecast
Day: Sunny, with a high near 74. Northeast wind around 2 mph.
Night: Mostly clear, with a low around 44. West southwest wind 1 to 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
71°22°–76°24°
Low, likely
43°6°–49°9°
Wind
13 mph20 km/h, gusts 26 mph42 km/h
UV peak
4
Monday, Oct 26. Mostly sunny. High 72°22°, low 42°6°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 49°10°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 58°15°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 47°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 72. Southwest wind 3 to 8 mph.
Night: Mostly clear, with a low around 42.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
69°21°–72°22°
Low, likely
42°6°–52°11°
Wind
14 mph23 km/h, gusts 22 mph36 km/h
UV peak
5
Tuesday, Oct 27. Cloudy. High 71°22°, low 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 58°14°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 46°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 71.
Night: Partly cloudy, with a low around 42.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
67°19°–71°22°
Low, likely
42°6°–48°9°
Wind
11 mph17 km/h, gusts 23 mph37 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 68°20°, low 44°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 59°15°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 53°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 68.
Night: Mostly cloudy, with a low around 44.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–69°21°
Low, likely
42°6°–47°8°
Wind
7 mph12 km/h, gusts 16 mph26 km/h
UV peak
4
Thursday, Oct 29. Cloudy. High 67°19°, low 44°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 53°12°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 65°19°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 59°15°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 48°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 67.
Night: A chance of rain after 11pm. Partly cloudy, with a low around 44.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–67°19°
Low, likely
44°7°–54°12°
Wind
12 mph19 km/h, gusts 20 mph33 km/h
UV peak
3
Friday, Oct 30. Rain. High 66°19°, low 43°6°. Rain 0.01 in0.3 mm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 45°7°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain. Partly sunny, with a high near 66.
Night: A chance of rain. Mostly cloudy, with a low around 43.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
63°17°–66°19°
Low, likely
42°6°–49°9°
Wind
10 mph16 km/h, gusts 19 mph30 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 65°18°, low 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 43°6°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 65°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 43°6°
  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.
High, likely
62°17°–69°21°
Low, likely
31°−1°–48°9°
Wind
8 mph12 km/h, gusts 17 mph28 km/h
UV peak
4
Sunday, Nov 1. Cloudy. High 66°19°, low 42°6°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 44°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 45°7°
  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
63°17°–70°21°
Low, likely
36°2°–45°7°
Wind
10 mph16 km/h, gusts 16 mph26 km/h
UV peak
4
Monday, Nov 2. Cloudy. High 67°19°, low 48°9°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 49°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 67°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 60°15°
  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
63°17°–74°23°
Low, likely
44°7°–55°13°
Wind
9 mph14 km/h, gusts 16 mph26 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 72°, low 43°.
Tomorrow
Dry, high 74°, low 44°.
Monday
Dry, high 72°, low 42°.
Rest of week
Mostly dry, highs 65–71°.

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

Sacramento River at Rio Vista Bridge

15 mi

Below flood stage

Level: 4.0 ft
Flow: 4,040 cfs

Forecast peak 7.7 ft Tue 4 PM, action stage

Reading from Sat 7:45 AM · NWS gauge page

Mokelumne River at Benson's Ferry

1.9 mi

Below flood stage

Level: 5.8 ft
Flow: 1,890 cfs

Forecast peak 6.0 ft Sat 5 PM

Reading from Sat 7:15 AM · NWS gauge page

Cosumnes River at McConnell

9.9 mi

Below flood stage

Level: 25.7 ft

Forecast peak 25.9 ft Sat 8 AM

Reading from Sat 7:15 AM · NWS gauge page

Dry Creek near Galt

11 mi

Level: 52.4 ft
Flow: 2 cfs

Reading from Sat 6:30 AM · NWS gauge page

Sun & moon

Sun

Daylight: 10 h 52 min; Losing 2 min 21 s a day; shortest Dec 21, 1 h 21 min less
Golden hour: 5:39–6:32 PM; Morning 7:07–8:00 AM
Blue hour: 6:32–6:42 PM; Morning 6:56–7:07 AM; first light 6:56 AM

Stars tonight? Fair

Mostly clear 6:42–11 PM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today: sets 5:44 AM · rises 5:15 PM
Full moon: Oct 25
New moon: Nov 8

Looking northeast from Thornton. The highest point on the skyline is about 10,500 ft, 93 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Thornton, CA weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Sacramento River at Rio Vista Bridge

Mokelumne River at Benson's Ferry

Cosumnes River at McConnell

Dry Creek near Galt

Sun & moon

Sun

Stars tonight? Fair

Moon