Observed 2:55 PM PDT at KSUU

Rio Vista, CA weather

Sunny and 77°25°.

Mostly agree

Now 77°25°

Sunny

Wind: 9 mph15 km/h; From the northeast. Up to 9 mph15 km/h through 3 AM
Dew point: 36°2°; Comfortable · up to 45°7° by 4 PM
UV index: 3Moderate; Moderate until 4 PM · peak 5
Air today: 39Good; EPA forecast · Ozone
Pressure: 29.97 inHg1015 hPa; Falling · −0.05 inHg−1.6 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

3°2° warmer than this time yesterday (74°23° then, 77°25° now)

Good hours for

High 72°22° today at 5 PM
Below 60°16° tonight after 9 PM
Low 47°8° tomorrow at 7 AM
Above 60°16° tomorrow by 11 AM

This afternoonNear 71°22° · Clear
TonightDown to 50°10° by 5 AM · Clear
Tomorrow morningUp to 60°16° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 71°22° by 4 PM · Mostly cloudy
Tomorrow nightDown to 52°11° by 4 AM · Partly cloudy
Monday morningUp to 62°17° by 11 AM · Clear
Monday afternoonNear 66°19° · Clear

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 3p	Sunny	70°21° (likely 69°21° to 73°23°)	70°21°	0%	3 mph5 km/h from N, gusts 6 mph10 km/h	41%	2%	3
Sat 4p	Sunny	70°21° (likely 70°21° to 73°23°)	70°21°	0%	2 mph3 km/h from N, gusts 5 mph9 km/h	40%	1%	2
Sat 5p	Sunny	72°22° (likely 69°21° to 73°23°)	72°22°	0%	1 mph2 km/h from NE, gusts 4 mph6 km/h	40%	0%	2
Sat 6p	Clear	68°20° (likely 66°19° to 69°21°)	68°20°	0%	0 mph0 km/h, gusts 2 mph3 km/h	47%	0%	0
Sat 7p	Clear	65°18° (likely 62°17° to 65°18°)	65°18°	0%	2 mph3 km/h from SSW, gusts 2 mph3 km/h	56%	0%	0
Sat 8p	Clear	62°17° (likely 58°14° to 62°17°)	62°17°	0%	2 mph3 km/h from SW, gusts 3 mph5 km/h	63%	0%	0
Sat 9p	Clear	58°14° (likely 56°13° to 59°15°)	58°14°	0%	2 mph3 km/h from WSW, gusts 5 mph8 km/h	67%	0%	0
Sat 10p	Clear	57°14° (likely 54°12° to 58°14°)	57°14°	0%	2 mph3 km/h from SW, gusts 6 mph9 km/h	70%	0%	0
Sat 11p	Clear	55°13° (likely 52°11° to 56°13°)	55°13°	0%	0 mph0 km/h, gusts 5 mph8 km/h	75%	0%	0
Sun 12a	Clear	54°12° (likely 50°10° to 55°13°)	54°12°	0%	0 mph0 km/h, gusts 5 mph7 km/h	77%	6%	0
Sun 1a	Clear	53°12° (likely 49°9° to 54°12°)	53°12°	0%	0 mph0 km/h, gusts 5 mph8 km/h	79%	8%	0
Sun 2a	Clear	53°12° (likely 47°8° to 53°12°)	53°12°	0%	0 mph0 km/h, gusts 4 mph7 km/h	81%	9%	0
Sun 3a	Clear	52°11° (likely 46°8° to 52°11°)	52°11°	0%	0 mph0 km/h, gusts 5 mph8 km/h	84%	14%	0
Sun 4a	Mostly clear	51°11° (likely 46°8° to 52°11°)	51°11°	0%	0 mph0 km/h, gusts 3 mph5 km/h	81%	34%	0
Sun 5a	Mostly clear	50°10° (likely 45°7° to 51°11°)	50°10°	0%	0 mph0 km/h, gusts 4 mph7 km/h	82%	53%	0
Sun 6a	Mostly clear	49°9° (likely 44°7° to 50°10°)	49°9°	0%	0 mph0 km/h, gusts 4 mph6 km/h	87%	49%	0
Sun 7a	Mostly cloudy	47°8° (likely 44°7° to 49°9°)	47°8°	0%	0 mph0 km/h, gusts 3 mph5 km/h	88%	54%	0
Sun 8a	Partly sunny	49°9° (likely 44°7° to 50°10°)	49°9°	0%	0 mph0 km/h, gusts 3 mph5 km/h	88%	70%	0
Sun 9a	Partly sunny	53°12° (likely 46°8° to 54°12°)	53°12°	0%	2 mph3 km/h from NE, gusts 3 mph5 km/h	81%	77%	1
Sun 10a	Partly sunny	57°14° (likely 51°11° to 62°17°)	57°14°	0%	3 mph5 km/h from NW, gusts 3 mph5 km/h	72%	76%	2
Sun 11a	Partly sunny	60°16° (likely 57°14° to 66°19°)	60°16°	0%	3 mph5 km/h from N, gusts 4 mph7 km/h	65%	76%	3
Sun 12p	Partly sunny	64°18° (likely 62°17° to 70°21°)	64°18°	0%	3 mph5 km/h from ENE, gusts 4 mph7 km/h	58%	66%	4
Sun 1p	Partly sunny	68°20° (likely 66°19° to 73°23°)	68°20°	0%	2 mph3 km/h from SE, gusts 4 mph7 km/h	54%	68%	4
Sun 2p	Partly sunny	69°21° (likely 68°20° to 75°24°)	69°21°	0%	2 mph3 km/h from S, gusts 5 mph8 km/h	51%	79%	4
Sun 3p	Cloudy	70°21° (likely 70°21° to 76°24°)	70°21°	0%	2 mph3 km/h from SW, gusts 6 mph9 km/h	50%	81%	3
Sun 4p	Cloudy	71°22° (likely 70°21° to 75°24°)	71°22°	0%	2 mph3 km/h from WSW, gusts 6 mph9 km/h	49%	83%	2
Sun 5p	Cloudy	71°22° (likely 69°21° to 73°23°)	71°22°	0%	2 mph3 km/h from WSW, gusts 7 mph12 km/h	49%	88%	1
Sun 6p	Cloudy	69°21° (likely 67°19° to 70°21°)	69°21°	0%	2 mph3 km/h from WSW, gusts 10 mph16 km/h	54%	88%	0
Sun 7p	Cloudy	66°19° (likely 64°18° to 66°19°)	66°19°	0%	2 mph3 km/h from WSW, gusts 12 mph20 km/h	62%	89%	0
Sun 8p	Cloudy	61°16° (likely 61°16° to 62°17°)	61°16°	0%	6 mph10 km/h from W, gusts 17 mph27 km/h	67%	88%	0
Sun 9p	Partly cloudy	59°15° (likely 59°15° to 60°16°)	59°15°	0%	6 mph10 km/h from W, gusts 17 mph27 km/h	72%	65%	0
Sun 10p	Mostly clear	58°14° (likely 57°14° to 59°15°)	58°14°	0%	6 mph10 km/h from W, gusts 17 mph28 km/h	76%	20%	0
Sun 11p	Clear	56°13° (likely 56°13° to 57°14°)	56°13°	0%	8 mph13 km/h from WSW, gusts 17 mph28 km/h	82%	1%	0
Mon 12a	Clear	55°13° (likely 55°13° to 57°14°)	55°13°	0%	8 mph13 km/h from WSW, gusts 16 mph26 km/h	85%	0%	0
Mon 1a	Clear	54°12° (likely 54°12° to 56°13°)	54°12°	0%	8 mph13 km/h from WSW, gusts 17 mph28 km/h	88%	1%	0
Mon 2a	Clear	54°12° (likely 53°12° to 55°13°)	54°12°	0%	10 mph16 km/h from WSW, gusts 15 mph25 km/h	89%	2%	0
Mon 3a	Clear	54°12° (likely 53°12° to 55°13°)	54°12°	0%	10 mph16 km/h from WSW, gusts 15 mph25 km/h	90%	2%	0
Mon 4a	Clear	52°11° (likely 52°11° to 54°12°)	52°11°	0%	10 mph16 km/h from WSW, gusts 15 mph25 km/h	88%	4%	0
Mon 5a	Clear	52°11° (likely 52°11° to 54°12°)	52°11°	0%	13 mph21 km/h from WSW, gusts 16 mph25 km/h	91%	7%	0
Mon 6a	Clear	51°11° (likely 51°11° to 54°12°)	51°11°	0%	13 mph21 km/h from WSW, gusts 15 mph24 km/h	93%	3%	0
Mon 7a	Sunny	50°10° (likely 50°10° to 53°12°)	45°7°	0%	13 mph21 km/h from WSW, gusts 14 mph23 km/h	94%	4%	0
Mon 8a	Sunny	51°11° (likely 50°10° to 53°12°)	51°11°	0%	13 mph21 km/h from SW, gusts 15 mph24 km/h	93%	4%	0
Mon 9a	Sunny	54°12° (likely 54°12° to 56°13°)	54°12°	0%	13 mph21 km/h from SW, gusts 19 mph31 km/h	88%	8%	1
Mon 10a	Sunny	58°14° (likely 58°14° to 61°16°)	58°14°	0%	13 mph21 km/h from SW, gusts 19 mph30 km/h	80%	11%	2
Mon 11a	Sunny	62°17° (likely 62°17° to 64°18°)	62°17°	0%	14 mph23 km/h from WSW, gusts 17 mph28 km/h	73%	36%	3
Mon 12p	Sunny	64°18° (likely 64°18° to 66°19°)	64°18°	0%	14 mph23 km/h from WSW, gusts 17 mph27 km/h	68%	22%	4
Mon 1p	Mostly sunny	66°19° (likely 66°19° to 68°20°)	66°19°	0%	14 mph23 km/h from WSW, gusts 17 mph27 km/h	64%	4%	5
Mon 2p	Sunny	67°19° (likely 67°19° to 69°21°)	67°19°	0%	12 mph19 km/h from W, gusts 17 mph27 km/h	61%	1%	5

Days ahead

Shaded: typical range for these dates (1947–2026)

Today, Oct 24. Sunny. High 72°22°, low 47°8°. Typical 74°23° / 51°11°. Dry. Mostly agree.
1. Afternoon
  noon–6 PM
  Sunny, 72°22°
  Dry
2. Evening
  6 PM–midnight
  Clear, 62°17°
  Dry
3. Overnight
  midnight–6 AM
  Clear, 50°10°
  Dry
Official NWS forecast
Today: Sunny, with a high near 72. North northeast wind around 3 mph.
Tonight: Mostly clear. Low around 47, with temperatures rising to around 50 overnight. Southwest wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
70°21°–73°23°
Low, likely
47°8°–53°12°
Typical high / low
74°23° / 51°11°
Wind
13 mph22 km/h, gusts 23 mph37 km/h
UV peak
5
Tomorrow, Oct 25. Partly sunny. High 72°22°, low 49°9°. Typical 74°23° / 51°10°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 49°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 71°22°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 52°11°
  Dry
Official NWS forecast
Day: Mostly sunny, with a high near 72. West wind 0 to 3 mph.
Night: Partly cloudy, with a low around 49. West southwest wind 2 to 13 mph, with gusts as high as 22 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
70°21°–76°24°
Low, likely
43°6°–49°9°
Typical high / low
74°23° / 51°10°
Wind
15 mph24 km/h, gusts 28 mph45 km/h
UV peak
4
Monday, Oct 26. Mostly sunny. High 69°21°, low 46°8°. Typical 73°23° / 50°10°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 51°11°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 69°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 59°15°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 49°9°
  Dry
Official NWS forecast
Day: Sunny, with a high near 69. West southwest wind around 14 mph, with gusts as high as 22 mph.
Night: Mostly clear, with a low around 46.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
68°20°–70°21°
Low, likely
46°8°–53°12°
Typical high / low
73°23° / 50°10°
Wind
14 mph23 km/h, gusts 25 mph40 km/h
UV peak
5
Tuesday, Oct 27. Mostly sunny. High 69°21°, low 47°8°. Typical 73°23° / 50°10°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 58°14°
  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 69.
Night: Partly cloudy, with a low around 47.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–69°21°
Low, likely
42°6°–50°10°
Typical high / low
73°23° / 50°10°
Wind
11 mph17 km/h, gusts 24 mph38 km/h
UV peak
5
Wednesday, Oct 28. Cloudy. High 66°19°, low 49°9°. Typical 72°22° / 50°10°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 58°15°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 53°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 66.
Night: Mostly cloudy, with a low around 49.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–67°19°
Low, likely
42°6°–50°10°
Typical high / low
72°22° / 50°10°
Wind
9 mph14 km/h, gusts 22 mph35 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 64°18°, low 46°8°. Typical 72°22° / 50°10°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 46°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 64.
Night: Partly cloudy, with a low around 46.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–69°21°
Low, likely
46°8°–55°13°
Typical high / low
72°22° / 50°10°
Wind
11 mph18 km/h, gusts 22 mph35 km/h
UV peak
3
Friday, Oct 30. Rain. High 63°17°, low 44°7°. Typical 72°22° / 49°10°. Rain 0.01 in0.3 mm, 20% chance. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 47°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 65°18°
  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.
Official NWS forecast
Day: A slight chance of rain after 5pm. Mostly sunny, with a high near 63.
Night: A slight chance of rain before 5am. Partly cloudy, with a low around 44.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
63°17°–67°19°
Low, likely
41°5°–49°9°
Typical high / low
72°22° / 49°10°
Wind
14 mph22 km/h, gusts 25 mph40 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 64°18°, low 44°7°. Typical 71°22° / 49°10°. Dry. 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, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 42°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
60°16°–68°20°
Low, likely
33°1°–48°9°
Typical high / low
71°22° / 49°10°
Wind
12 mph20 km/h, gusts 23 mph37 km/h
UV peak
4
Sunday, Nov 1. Cloudy. High 65°18°, low 41°5°. Typical 71°22° / 49°9°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 42°5°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Drizzle, 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
62°17°–70°21°
Low, likely
27°−3°–47°8°
Typical high / low
71°22° / 49°9°
Wind
8 mph14 km/h, gusts 21 mph33 km/h
UV peak
4
Monday, Nov 2. Cloudy. High 60°16°, low 45°7°. Typical 71°22° / 49°9°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 49°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 57°14°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 53°11°
  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
56°13°–63°17°
Low, likely
34°1°–51°11°
Typical high / low
71°22° / 49°9°
Wind
10 mph16 km/h

10 days15 days30 days

The outlook

Today
Dry, high 72°, low 47°.
Tomorrow
Dry, high 72°, low 49°.
Monday
Dry, high 69°, low 46°, cooling off.
Rest of week
Mostly dry, highs 60–69°.

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

1.5 mi

Below flood stage

Level: 6.7 ft
Flow: 6,670 cfs

Forecast peak 7.9 ft Wed 5 PM, action stage

Reading from Sat 2:45 PM · NWS gauge page

Three Mile Island

6.0 mi

Level: 6.2 ft

Reading from Sat 2:15 PM · NWS gauge page

False River near Oakley Ca

8.6 mi

Level: 19.0 ft

Reading from Sat 1:45 PM · NWS gauge page

San Joaquin River at Jersey Point

8.6 mi

Level: 5.7 ft

Reading from Sat 1:15 PM · NWS gauge page

For your home

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

Heating this week

About 43% less heating than a typical week.

This week 14Typical 25

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 1
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 36°F).

Open the windows?

Today, 4:00 PM–8:00 PM

Good stretch to open the windows.

Is this typical?

Travis Field AFB · forecast.blue computed averages, 1947–2026 · records 1947–2026

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

Lodi station, 1893–2015: records and averages

This station closed and is no longer reporting, but has a long history nearby. Its own average annual high was about 74°23°, over its full 1893–2015 record — not an NCEI normal, and not the same station as the computed averages above.

Rio Vista weather by month: normals, records, snow and freeze dates

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: 5:40–6:33 PM; Morning 7:08–8:01 AM
Blue hour: 6:33–6:43 PM; Morning 6:57–7:08 AM; first light 6:57 AM

Stars tonight? Fair

Mostly clear 6:43 PM–4 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

98% lit · growing

Today: sets 5:46 AM · rises 5:16 PM
Full moon: Oct 25
New moon: Nov 8

Looking east from Rio Vista. The highest point on the skyline is about 9,100 ft, 91 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.