Fontana, CA Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Fontana, CA in one place.
Sunny, with a high near 100. South wind 0 to 15 mph, with gusts as high as 25 mph.
Local Weather Overview
This forecast page for Fontana, 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: Jul 8, 2026 11:25 AM PDT.
The active forecast window currently covers Jul 9 to Jul 14, 2026 for Fontana, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 9 to Jul 14, 2026
- Latest sync
- Jul 8, 2026 11:25 AM PDT
- Forecast office
- SGX
- Source
- NOAA / NWS
Daily Outlook
This Week in Fontana
Thursday looks like the warmest upcoming period in Fontana at 100 degrees F.
Friday Night is the coolest period ahead with temperatures near 64 degrees F.
The strongest winds are forecast for Thursday at about 0 to 15 mph S.
The forecast from Jul 9 through Jul 14 stays mostly dry.
Forecast Details
- Last updated
- Jul 8, 2026 11:25 AM 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 66. Southwest wind 0 to 10 mph, with gusts as high as 20 mph.
Sunny, with a high near 98. South wind 0 to 10 mph, with gusts as high as 20 mph.
Mostly clear, with a low around 64.
Mostly sunny, with a high near 96.
Partly cloudy, with a low around 66.
Partly sunny, with a high near 93.
Partly cloudy, with a low around 66.
Sunny, with a high near 95.
Mostly clear, with a low around 68.
Sunny, with a high near 98.
Mostly clear, with a low around 70.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Jul 9
|
Sunny
|
100°F |
0 to 15 mph
S
|
|
Thursday Night
Jul 9
|
Mostly Clear
|
66°F |
0 to 10 mph
SW
|
|
Friday
Jul 10
|
Sunny
|
98°F |
0 to 10 mph
S
|
|
Friday Night
Jul 10
|
Mostly Clear
|
64°F |
0 to 10 mph
SW
|
|
Saturday
Jul 11
|
Mostly Sunny
|
96°F |
0 to 10 mph
SW
|
|
Saturday Night
Jul 11
|
Partly Cloudy
|
66°F |
0 to 10 mph
SW
|
|
Sunday
Jul 12
|
Partly Sunny
|
93°F |
0 to 10 mph
SW
|
|
Sunday Night
Jul 12
|
Partly Cloudy
|
66°F |
0 to 10 mph
W
|
|
Monday
Jul 13
|
Sunny
|
95°F |
0 to 10 mph
SW
|
|
Monday Night
Jul 13
|
Mostly Clear
|
68°F |
0 to 10 mph
W
|
|
Tuesday
Jul 14
|
Sunny
|
98°F |
0 to 10 mph
SW
|
|
Tuesday Night
Jul 14
|
Mostly Clear
|
70°F |
0 to 10 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Fontana.
