Fountain Valley, CA Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Fountain Valley, CA in one place.
Sunny, with a high near 95. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Local Weather Overview
This forecast page for Fountain Valley, CA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Oct 15, 2026 10:23 PM PDT.
The active forecast window currently covers Oct 16 to Oct 22, 2026 for Fountain Valley, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 16 to Oct 22, 2026
- Latest sync
- Oct 15, 2026 10:23 PM PDT
- Forecast office
- SGX
- Source
- NOAA / NWS
Daily Outlook
This Week in Fountain Valley
Friday looks like the warmest upcoming period in Fountain Valley at 95 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 58 degrees F.
The strongest winds are forecast for Friday at about 10 to 15 mph NE.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 15, 2026 10:23 PM PDT
- Coverage
- 7 days
- Time zone
- America/Los_Angeles
- Forecast office
- SGX
- Radar station
- KSOX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 72. Northeast wind 5 to 15 mph, with gusts as high as 25 mph.
Sunny, with a high near 88. Northeast wind 5 to 10 mph.
Mostly clear, with a low around 68. North wind 0 to 5 mph.
Sunny, with a high near 84.
Mostly clear, with a low around 64.
Sunny, with a high near 79.
Mostly clear, with a low around 63.
A chance of rain showers after 5pm. Mostly sunny, with a high near 71.
Rain showers likely. Mostly cloudy, with a low around 59.
Rain showers likely. Mostly cloudy, with a high near 69.
A chance of rain showers. Mostly cloudy, with a low around 58.
A chance of rain showers. Mostly sunny, with a high near 68.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Oct 16
|
Sunny
|
95°F |
10 to 15 mph
NE
|
|
Friday Night
Oct 16
|
Mostly Clear
|
72°F |
5 to 15 mph
NE
|
|
Saturday
Oct 17
|
Sunny
|
88°F |
5 to 10 mph
NE
|
|
Saturday Night
Oct 17
|
Mostly Clear
|
68°F |
0 to 5 mph
N
|
|
Sunday
Oct 18
|
Sunny
|
84°F |
0 to 10 mph
W
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
64°F |
0 to 10 mph
SW
|
|
Monday
Oct 19
|
Sunny
|
79°F |
0 to 10 mph
S
|
|
Monday Night
Oct 19
|
Mostly Clear
|
63°F |
5 to 10 mph
SW
|
|
Tuesday
Oct 20
|
Mostly Sunny then Chance Rain Showers
|
71°F |
5 to 15 mph
SW
|
|
Tuesday Night
Oct 20
|
Rain Showers Likely
|
59°F |
5 to 15 mph
SW
|
|
Wednesday
Oct 21
|
Rain Showers Likely
|
69°F |
5 to 10 mph
S
|
|
Wednesday Night
Oct 21
|
Chance Rain Showers
|
58°F |
5 to 10 mph
SE
|
|
Thursday
Oct 22
|
Chance Rain Showers
|
68°F |
5 to 10 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Fountain Valley.
