Early Heat Wave in the West; Fire Concerns in the Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Elevated to critical fire weather conditions are expected today across the High Plains and southern Plains. Lake effect snow downwind of the Great Lakes will taper off today. Read More >

Current conditions at

SCE Highway 190 (SE479)

Lat: 36.12382°NLon: 118.82379°WElev: 964.0ft.

61°F

16°C

Humidity	71%
Wind Speed	E 2 MPH
Barometer	NA
Dewpoint	52°F (11°C)
Visibility	NA
Last update	17 Mar 08:50 AM PDT

More Information:

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

Extended Forecast for

17 Miles ESE Porterville CA

Today
High: 83 °F
Sunny
Tonight
Low: 67 °F
Clear
Wednesday
High: 83 °F
Sunny
Wednesday Night
Low: 66 °F
Clear
Thursday
High: 84 °F
Sunny
Thursday Night
Low: 67 °F
Clear
Friday
High: 87 °F
Sunny
Friday Night
Low: 65 °F
Mostly Clear
Saturday
High: 88 °F
Sunny

Detailed Forecast

Today

Sunny, with a high near 83. Calm wind becoming west northwest around 5 mph in the afternoon.

Tonight

Clear, with a low around 67. Calm wind becoming east northeast around 5 mph.

Wednesday

Sunny, with a high near 83. Calm wind becoming west around 5 mph in the afternoon.

Wednesday Night

Clear, with a low around 66. West northwest wind around 5 mph becoming calm in the evening.

Thursday

Sunny, with a high near 84. Calm wind becoming west around 5 mph in the afternoon.

Thursday Night

Clear, with a low around 67. West northwest wind around 5 mph becoming east in the evening.

Friday

Sunny, with a high near 87. Calm wind becoming west around 5 mph in the afternoon.

Friday Night

Mostly clear, with a low around 65. West northwest wind around 5 mph becoming east in the evening.

Saturday

Sunny, with a high near 88. Calm wind becoming west around 5 mph in the afternoon.

Saturday Night

Partly cloudy, with a low around 60. West wind around 5 mph becoming calm in the evening.

Sunday

Mostly sunny, with a high near 77. Calm wind becoming west around 5 mph in the afternoon.

Sunday Night

Mostly clear, with a low around 58. West wind around 5 mph becoming calm in the evening.

Monday

Mostly sunny, with a high near 76. Calm wind becoming west around 5 mph in the afternoon.

Additional Forecasts and Information

Zone Area Forecast for South End of the Lower Sierra, CA

Basemap Options

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ABOUT THIS FORECAST

Point Forecast:

17 Miles ESE Porterville CA
35.95°N 118.73°W (Elev. 2690 ft)

Last Update:

8:56 am PDT Mar 17, 2026

Forecast Valid:

9am PDT Mar 17, 2026-6pm PDT Mar 23, 2026

Forecast Discussion

Additional Resources

Radar & Satellite Image

Hourly Weather Forecast

National Digital Forecast Database

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation

San Joaquin Valley/Hanford, CA