Another Day with Significant Severe Weather and Heavy Rain for the Central U.S.

Severe storms, some significant, and heavy rains can be expected today across the same areas that were impacted yesterday. Tornadoes, large hail, damaging winds, and heavy rain will be possible from Oklahoma into Illinois today. Strong tornadoes and very large hail may develop from northeastern Oklahoma into central Missouri. Severe storm and heavy rain threats continue into the Holiday weekend. Read More >

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Current conditions at

EW7809 Rialto (E7809)

Lat: 34.12463°NLon: 117.40663°WElev: 1423ft.

52°F

11°C

Humidity	80%
Wind Speed	SW 2 G 3 MPH
Barometer	29.70 in
Dewpoint	46°F (8°C)
Visibility	NA
Last update	22 May 5:48 pm PDT

More Information:

Local Forecast Office More Local Wx 3 Day History Mobile Weather Hourly Weather Forecast

Extended Forecast for

Fontana CA

Tonight

Chance
Showers then
Mostly Cloudy
Low: 51 °F
Thursday

Chance
Showers
High: 63 °F
Thursday
Night

Slight Chance
Showers and
Patchy Fog
then Patchy
Fog
Low: 51 °F
Friday

Sunny
High: 75 °F
Friday
Night

Mostly Clear
Low: 53 °F
Saturday

Slight Chance
Showers
High: 70 °F
Saturday
Night

Chance
Showers
Low: 53 °F
Sunday

Chance
Showers
High: 65 °F
Sunday
Night

Chance
Showers
Low: 52 °F

Detailed Forecast

Tonight

A chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 51. West wind 10 to 15 mph becoming south 5 to 10 mph in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday

A chance of showers, mainly after 11am. Mostly cloudy, with a high near 63. Light and variable wind becoming west 5 to 10 mph in the morning. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Thursday Night

A slight chance of showers before 11pm. Patchy fog after 11pm. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 51. West wind 5 to 10 mph becoming light and variable after midnight. Chance of precipitation is 20%.

Friday

Sunny, with a high near 75. Light southwest wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

Friday Night

Mostly clear, with a low around 53. Southwest wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.

Saturday

A slight chance of showers after 11am. Increasing clouds, with a high near 70. Chance of precipitation is 20%.

Saturday Night

A chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.

Sunday

A chance of showers. Partly sunny, with a high near 65.

Sunday Night

A chance of showers. Mostly cloudy, with a low around 52.