Observed 12:40 AM PDT at KSMF

Grimes, CA weather

Clear and 55°13°.

Mostly agree

Now 55°13°

Clear

Wind: 14 mph22 km/h; From the north-northwest. 914–14 mph22 km/h through 12 PM
Dew point: 37°3°; Comfortable
UV index: 0Low; Moderate 11 AM–5 PM · peak 5
Air quality: 35Good; Main pollutant: Ozone
Pressure: 30.01 inHg1016 hPa; Steady over the next 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Low 50°10° today at 6 AM
Above 60°16° today by 11 AM
High 73°23° today at 5 PM
Below 60°16° tonight after 9 PM

TonightDown to 51°11° by 5 AM · Clear
This morningUp to 63°17° by 11 AM · Clear
This afternoonUp to 73°23° by 5 PM · Clear
TonightDown to 45°7° by 5 AM · Clear
Tomorrow morningUp to 59°15° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 72°22° by 5 PM · Mostly cloudy
Tomorrow nightDown to 53°12° by 11 PM · 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 12a	Clear	55°13° (likely 55°13° to 60°16°)	55°13°	0%	13 mph21 km/h from NNW, gusts 23 mph37 km/h	59%	0%	0
Sat 1a	Clear	54°12° (likely 54°12° to 60°16°)	54°12°	0%	12 mph19 km/h from NNW, gusts 23 mph37 km/h	59%	0%	0
Sat 2a	Clear	54°12° (likely 54°12° to 59°15°)	54°12°	0%	12 mph19 km/h from NNW, gusts 23 mph36 km/h	56%	0%	0
Sat 3a	Clear	53°12° (likely 53°12° to 59°15°)	53°12°	0%	13 mph21 km/h from NNW, gusts 22 mph35 km/h	56%	0%	0
Sat 4a	Clear	52°11° (likely 52°11° to 58°14°)	52°11°	0%	13 mph21 km/h from NNW, gusts 22 mph35 km/h	58%	0%	0
Sat 5a	Clear	51°11° (likely 51°11° to 57°14°)	51°11°	0%	12 mph19 km/h from NNW, gusts 20 mph33 km/h	59%	0%	0
Sat 6a	Clear	50°10° (likely 50°10° to 57°14°)	46°8°	0%	12 mph19 km/h from NNW, gusts 21 mph34 km/h	61%	0%	0
Sat 7a	Sunny	50°10° (likely 49°9° to 56°13°)	46°8°	0%	10 mph16 km/h from NNW, gusts 19 mph31 km/h	63%	0%	0
Sat 8a	Sunny	50°10° (likely 49°9° to 56°13°)	46°8°	0%	10 mph16 km/h from NNW, gusts 18 mph28 km/h	64%	0%	0
Sat 9a	Sunny	54°12° (likely 54°12° to 59°15°)	54°12°	0%	12 mph19 km/h from NNW, gusts 18 mph29 km/h	59%	0%	1
Sat 10a	Sunny	59°15° (likely 59°15° to 62°17°)	59°15°	0%	10 mph16 km/h from NNW, gusts 22 mph36 km/h	52%	0%	2
Sat 11a	Sunny	63°17° (likely 63°17° to 67°19°)	63°17°	0%	10 mph16 km/h from NNW, gusts 20 mph32 km/h	48%	0%	3
Sat 12p	Sunny	64°18° (likely 64°18° to 71°22°)	64°18°	0%	9 mph14 km/h from NNW, gusts 17 mph27 km/h	46%	0%	4
Sat 1p	Sunny	68°20° (likely 68°20° to 75°24°)	68°20°	0%	8 mph13 km/h from NNW, gusts 14 mph23 km/h	42%	0%	5
Sat 2p	Sunny	70°21° (likely 70°21° to 77°25°)	70°21°	0%	7 mph11 km/h from NNW, gusts 12 mph20 km/h	39%	0%	5
Sat 3p	Sunny	71°22° (likely 71°22° to 78°26°)	71°22°	0%	5 mph8 km/h from NNW, gusts 10 mph16 km/h	39%	0%	4
Sat 4p	Sunny	71°22° (likely 71°22° to 78°26°)	71°22°	0%	3 mph5 km/h from NNW, gusts 8 mph12 km/h	38%	2%	3
Sat 5p	Sunny	73°23° (likely 73°23° to 76°24°)	73°23°	0%	2 mph3 km/h from NNW, gusts 8 mph12 km/h	38%	0%	2
Sat 6p	Clear	70°21° (likely 68°20° to 71°22°)	70°21°	0%	2 mph3 km/h from SSE, gusts 7 mph12 km/h	48%	0%	0
Sat 7p	Clear	65°18° (likely 63°17° to 66°19°)	65°18°	0%	2 mph3 km/h from SSE, gusts 8 mph13 km/h	61%	1%	0
Sat 8p	Clear	62°17° (likely 59°15° to 62°17°)	62°17°	0%	3 mph5 km/h from SSE, gusts 10 mph15 km/h	68%	3%	0
Sat 9p	Clear	55°13° (likely 55°13° to 60°16°)	55°13°	0%	2 mph3 km/h from SSE, gusts 10 mph15 km/h	77%	1%	0
Sat 10p	Clear	53°12° (likely 53°12° to 58°14°)	53°12°	0%	2 mph3 km/h from SE, gusts 8 mph14 km/h	81%	0%	0
Sat 11p	Clear	52°11° (likely 51°11° to 57°14°)	52°11°	0%	2 mph3 km/h from ESE, gusts 9 mph14 km/h	86%	4%	0
Sun 12a	Clear	50°10° (likely 49°9° to 55°13°)	50°10°	0%	1 mph2 km/h from E, gusts 9 mph15 km/h	89%	2%	0
Sun 1a	Mostly clear	49°9° (likely 47°8° to 54°12°)	49°9°	0%	1 mph2 km/h from E, gusts 9 mph14 km/h	92%	38%	0
Sun 2a	Clear	48°9° (likely 46°8° to 53°12°)	48°9°	0%	1 mph2 km/h from E, gusts 7 mph12 km/h	90%	41%	0
Sun 3a	Clear	48°9° (likely 45°7° to 52°11°)	48°9°	0%	1 mph2 km/h from E, gusts 6 mph10 km/h	90%	34%	0
Sun 4a	Mostly clear	46°8° (likely 44°7° to 52°11°)	46°8°	0%	1 mph2 km/h from E, gusts 7 mph12 km/h	93%	47%	0
Sun 5a	Mostly clear	45°7° (likely 43°6° to 51°11°)	45°7°	0%	1 mph2 km/h from N, gusts 7 mph11 km/h	93%	64%	0
Sun 6a	Mostly clear	45°7° (likely 43°6° to 50°10°)	45°7°	0%	1 mph2 km/h from N, gusts 7 mph11 km/h	95%	64%	0
Sun 7a	Cloudy	44°7° (likely 42°6° to 48°9°)	44°7°	0%	1 mph2 km/h from N, gusts 7 mph11 km/h	97%	63%	0
Sun 8a	Mostly sunny	43°6° (likely 42°6° to 49°9°)	41°5°	0%	3 mph5 km/h from NNW, gusts 5 mph8 km/h	98%	65%	0
Sun 9a	Mostly sunny	48°9° (likely 46°8° to 53°12°)	47°8°	0%	3 mph5 km/h from NNW, gusts 3 mph5 km/h	84%	65%	1
Sun 10a	Mostly sunny	55°13° (likely 52°11° to 59°15°)	55°13°	0%	3 mph5 km/h from NNW, gusts 3 mph5 km/h	73%	61%	2
Sun 11a	Mostly sunny	59°15° (likely 58°14° to 63°17°)	59°15°	0%	3 mph5 km/h from NNW, gusts 8 mph12 km/h	64%	57%	3
Sun 12p	Mostly sunny	61°16° (likely 61°16° to 66°19°)	61°16°	0%	3 mph5 km/h from NNW, gusts 7 mph12 km/h	64%	69%	4
Sun 1p	Cloudy	64°18° (likely 64°18° to 69°21°)	64°18°	0%	3 mph5 km/h from NNW, gusts 7 mph11 km/h	58%	74%	4
Sun 2p	Partly sunny	67°19° (likely 67°19° to 71°22°)	67°19°	0%	3 mph5 km/h from SSE, gusts 9 mph15 km/h	56%	80%	4
Sun 3p	Cloudy	69°21° (likely 69°21° to 72°22°)	69°21°	0%	3 mph5 km/h from SSE, gusts 11 mph18 km/h	55%	84%	3
Sun 4p	Cloudy	69°21° (likely 69°21° to 74°23°)	69°21°	0%	3 mph5 km/h from SSE, gusts 12 mph19 km/h	54%	86%	2
Sun 5p	Cloudy	72°22° (likely 69°21° to 73°23°)	72°22°	0%	5 mph8 km/h from SSE, gusts 14 mph23 km/h	50%	87%	1
Sun 6p	Cloudy	69°21° (likely 67°19° to 69°21°)	69°21°	0%	5 mph8 km/h from SSE, gusts 14 mph22 km/h	59%	89%	0
Sun 7p	Cloudy	66°19° (likely 63°17° to 66°19°)	66°19°	0%	5 mph8 km/h from SSE, gusts 14 mph22 km/h	69%	90%	0
Sun 8p	Partly cloudy	62°17° (likely 60°16° to 63°17°)	62°17°	0%	3 mph5 km/h from SSE, gusts 12 mph20 km/h	77%	51%	0
Sun 9p	Partly cloudy	59°15° (likely 57°14° to 62°17°)	59°15°	0%	3 mph5 km/h from SSE, gusts 11 mph17 km/h	83%	39%	0
Sun 10p	Clear	56°13° (likely 54°12° to 60°16°)	56°13°	0%	3 mph5 km/h from SSE, gusts 10 mph15 km/h	87%	34%	0
Sun 11p	Clear	53°12° (likely 51°11° to 59°15°)	53°12°	0%	2 mph3 km/h from SSE, gusts 9 mph15 km/h	90%	21%	0

Days ahead

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

Today, Oct 24. Sunny. High 73°23°, low 50°10°. Typical 75°24° / 46°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Clear, 62°17°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 45°7°
  Dry
Official NWS forecast
Today: Sunny, with a high near 73. North northwest wind 2 to 12 mph, with gusts as high as 26 mph.
Tonight: Clear, with a low around 50. North northwest wind around 13 mph, with gusts as high as 31 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
73°23°–78°26°
Low, likely
48°9°–55°13°
Typical high / low
75°24° / 46°8°
Wind
18 mph28 km/h, gusts 27 mph44 km/h
UV peak
5
Tomorrow, Oct 25. Cloudy. High 72°22°, low 44°7°. Typical 75°24° / 46°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 43°6°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 72°22°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 62°17°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 48°9°
  Dry
Official NWS forecast
Day: Patchy fog between 7am and 8am. Mostly sunny, with a high near 72. North northwest wind 1 to 5 mph.
Night: Mostly clear, with a low around 44. South southeast wind around 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
71°22°–74°23°
Low, likely
42°6°–48°9°
Typical high / low
75°24° / 46°8°
Wind
10 mph16 km/h, gusts 17 mph28 km/h
UV peak
4
Monday, Oct 26. Mostly sunny. High 71°22°, low 43°6°. Typical 74°23° / 46°8°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 59°15°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 47°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 71.
Night: Patchy fog between 10pm and 5am. Mostly clear, with a low around 43.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
69°21°–72°22°
Low, likely
39°4°–50°10°
Typical high / low
74°23° / 46°8°
Wind
14 mph23 km/h
UV peak
4
Tuesday, Oct 27. Mostly sunny. High 70°21°, low 43°6°. Typical 74°23° / 46°8°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 59°15°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 47°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 70.
Night: Partly cloudy, with a low around 43.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
68°20°–70°21°
Low, likely
43°6°–48°9°
Typical high / low
74°23° / 46°8°
Wind
12 mph19 km/h, gusts 29 mph47 km/h
UV peak
4
Wednesday, Oct 28. Partly sunny. High 67°19°, low 44°7°. Typical 73°23° / 45°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 67°20°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 59°15°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 49°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 67.
Night: Partly cloudy, with a low around 44.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–69°21°
Low, likely
39°4°–50°10°
Typical high / low
73°23° / 45°7°
Wind
8 mph13 km/h, gusts 18 mph29 km/h
UV peak
4
Thursday, Oct 29. Cloudy. High 65°18°, low 44°7°. Typical 73°23° / 45°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 47°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 65.
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
63°17°–68°20°
Low, likely
44°7°–51°11°
Typical high / low
73°23° / 45°7°
Wind
10 mph17 km/h, gusts 16 mph26 km/h
UV peak
4
Friday, Oct 30. Rain. High 64°18°, low 45°7°. Typical 72°22° / 45°7°. Rain 0.06 in1.5 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 63°17°
  20% chance · 0.02 in0.5 mm
3. Evening
  6 PM–midnight
  Clear, 55°13°
  20% chance
4. Overnight
  midnight–6 AM
  Cloudy, 44°7°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain. Mostly sunny, with a high near 64.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
58°14°–67°19°
Low, likely
39°4°–50°10°
Typical high / low
72°22° / 45°7°
Wind
7 mph11 km/h, gusts 12 mph19 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 66°19°, low 43°6°. Typical 72°22° / 45°7°. Rain 0.01 in0.3 mm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 67°19°
  20% chance
3. Evening
  6 PM–midnight
  Clear, 56°13°
  20% chance
4. Overnight
  midnight–6 AM
  Clear, 49°9°
  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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
63°17°–70°21°
Low, likely
32°0°–49°9°
Typical high / low
72°22° / 45°7°
Wind
8 mph13 km/h, gusts 15 mph25 km/h
UV peak
3
Sunday, Nov 1. Sunny. High 69°21°, low 47°8°. Typical 71°22° / 44°7°. Rain 0.01 in0.3 mm, 20% chance. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 52°11°
  20% chance
2. Afternoon
  noon–6 PM
  Sunny, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 49°9°
  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
66°19°–72°22°
Low, likely
41°5°–54°12°
Typical high / low
71°22° / 44°7°
Wind
19 mph30 km/h, gusts 29 mph46 km/h
UV peak
3
Monday, Nov 2. Cloudy. High 70°21°, low 52°11°. Typical 71°22° / 44°7°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 53°12°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 71°22°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 64°18°
  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
64°18°–75°24°
Low, likely
47°8°–61°16°
Typical high / low
71°22° / 44°7°
Wind
7 mph12 km/h, gusts 16 mph25 km/h
UV peak
4

10 days15 days30 days

The outlook

Today
Dry, high 73°, low 50°.
Tomorrow
Dry, high 72°, low 44°.
Monday
Dry, high 71°, low 43°.
Rest of week
Mostly dry, highs 64–70°.

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 Tisdale Weir

5.3 mi

Below flood stage

Level: 43.0 ft

Forecast peak 44.0 ft Sat 1 AM

Reading from Fri 11:15 PM · NWS gauge page

Sacramento River below Wilkins Slough

6.0 mi

Below flood stage

Level: 28.3 ft
Flow: 4,730 cfs

Forecast peak 28.3 ft Sat 1 AM

Reading from Fri 11:15 PM · NWS gauge page

Sacramento River at Colusa Bridge

11 mi

Below flood stage

Level: 40.3 ft
Flow: 5,000 cfs

Forecast peak 40.3 ft Sat 1 AM

Reading from Fri 11:45 PM · NWS gauge page

Sacramento River at Colusa Weir

12 mi

Below flood stage

Level: 59.5 ft

Forecast peak 60.8 ft Sat 1 AM

Reading from Sat 12 AM · NWS gauge page

For your home

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

Heating this week

About 56% less heating than a typical week.

This week 17Typical 38

Heating degree days, base 65°F

Heat-pump hours, next 7 days

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

47, 17 and 5°F are the test points heat pumps are rated at.

Comfort

Dry air outside (dew point 37°F).

Open the windows?

Today, 11:00 AM–8:00 PM

Good stretch to open the windows.

Is this typical?

Colusa 2 Ssw · official normals 1991–2020 · records 1948–2025

Oct 24, today vs a typical year

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

Last 7 days vs normal

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

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

Sun & moon

Sun

Daylight: 10 h 50 min; Losing 2 min 21 s a day; shortest Dec 21, 1 h 24 min less
Golden hour: 5:39–6:33 PM; Morning 7:09–8:03 AM
Blue hour: 6:33–6:43 PM; Morning 6:59–7:09 AM; first light 6:59 AM

Stars tonight? Good

Clear 12:58–6:59 AM; moon 96% lit, sets 5:47 AM.

Moon

Waxing gibbous

96% lit · growing

Today: sets 5:47 AM · rises 5:16 PM
Full moon: Oct 25
New moon: Nov 8

Looking northeast from Grimes. The highest point on the skyline is about 9,200 ft, 93 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Grimes, 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 Tisdale Weir

Sacramento River below Wilkins Slough

Sacramento River at Colusa Bridge

Sacramento River at Colusa Weir

For your home

Heating this week

Heat-pump hours, next 7 days

Comfort

Open the windows?

Is this typical?

Oct 24, today vs a typical year

Last 7 days vs normal

Sun & moon

Sun

Stars tonight? Good

Moon