California · NWS HNX office

Porterville, CA weather

It is 52°F and fog/mist at Porterville, Porterville Municipal Airport as of Oct 28, 2:05 AM PDT. Overnight: Partly Cloudy, low near 50°F. Forecast from the National Weather Service, issued Oct 28, 1:56 AM PDT.

Updated Oct 28, 2:19 AM PDT (snapshot)

Current conditions

Temperature

52°F

Fog/Mist

Wind

WSW 5 mph

Humidity 87% · dew point 48°F

Pressure · visibility

30.00 inHg

Visibility 6 mi

Observed at Porterville, Porterville Municipal Airport (KPTV), Oct 28, 2:05 AM PDT. Station readings can lag or be missing.

Alerts for this area

No active NWS alerts cover the Porterville forecast zone right now.

Around the NWS HNX forecast area

No active alerts in zones served by the HNX office near Porterville.

From the alert snapshot of Oct 28, 2026, 5:12 AM EDT. California has 8 active alerts: see them all.

For official warnings, check weather.gov and your local authorities. OpenForecast repeats National Weather Service alerts and may be delayed or incomplete. Follow instructions from emergency officials.

Next 24 hours

Hourly forecast for Porterville (local time)
TimeTempForecastPrecip. chanceWind
Wed 4 AM52°FMostly Clear0% 0 mph
Wed 5 AM51°FMostly Clear0% 0 mph
Wed 6 AM52°FMostly Sunny0% 0 mph
Wed 7 AM50°FMostly Sunny0% 0 mph
Wed 8 AM50°FMostly Sunny0% 0 mph
Wed 9 AM52°FSunny0% 0 mph
Wed 10 AM57°FSunny0% 0 mph
Wed 11 AM60°FSunny0%SSW 5 mph
Wed 12 PM63°FSunny0%SW 5 mph
Wed 1 PM66°FSunny0%WSW 5 mph
Wed 2 PM67°FSunny0%W 5 mph
Wed 3 PM68°FSunny0%WNW 5 mph
Wed 4 PM69°FSunny0%NW 5 mph
Wed 5 PM67°FMostly Sunny0% 0 mph
Wed 6 PM66°FPartly Cloudy0% 0 mph
Wed 7 PM63°FPartly Cloudy0% 0 mph
Wed 8 PM59°FPartly Cloudy0% 0 mph
Wed 9 PM57°FPartly Cloudy0% 0 mph
Wed 10 PM57°FPartly Cloudy0% 0 mph
Wed 11 PM57°FMostly Cloudy0% 0 mph
Thu 12 AM57°FMostly Cloudy0% 0 mph
Thu 1 AM56°FMostly Cloudy0% 0 mph
Thu 2 AM56°FMostly Cloudy0% 0 mph
Thu 3 AM54°FMostly Cloudy0% 0 mph

Hourly values come from the NWS gridded forecast for the 2.5 km grid square that covers the city's center point. Conditions elsewhere in Porterville can differ.

7-day forecast

Overnight

Low 50°F

Partly cloudy, with a low around 50. South southwest wind around 0 mph.

Wednesday

High 70°F·Low 52°F

Sunny. High near 70, with temperatures falling to around 68 in the afternoon. Southwest wind 0 to 5 mph.

Wednesday Night: Mostly cloudy. Low around 52, with temperatures rising to around 54 overnight. East wind around 0 mph.

Thursday

High 70°F·Low 54°F

Partly sunny, with a high near 70. West wind 0 to 5 mph.

Thursday Night: Mostly cloudy, with a low around 54. East southeast wind 0 to 5 mph.

Friday

High 71°F·Low 53°F

Mostly sunny, with a high near 71. Southwest wind around 5 mph.

Friday Night: Partly cloudy, with a low around 53. East wind 0 to 5 mph.

Saturday

High 66°F·Low 52°F

A chance of rain after 5pm. Partly sunny, with a high near 66. Southwest wind 0 to 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

Saturday Night: A chance of rain. Mostly cloudy, with a low around 52. North wind 0 to 5 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.

Sunday

High 64°F·Low 48°F

A chance of rain before 10am. Mostly sunny, with a high near 64. West southwest wind 0 to 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

Sunday Night: Mostly clear, with a low around 48. East wind 0 to 5 mph.

Monday

High 68°F·Low 51°F

Sunny, with a high near 68. West northwest wind 0 to 5 mph.

Monday Night: Partly cloudy, with a low around 51. East northeast wind 0 to 5 mph.

Tuesday

High 71°F

A slight chance of rain after 4pm. Mostly sunny, with a high near 71. West southwest wind around 0 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

Nearby cities

Larger cities in the area

Other cities in Tulare County

See every city we cover in California, or check all active alerts.

About this forecast

Forecast office
Porterville is served by the National Weather Service HNX forecast office, forecast zone CAZ312, county zone CAC107.
Location used
The Census Bureau's internal point for Porterville (36.0635, -119.0336), in Tulare County. Population: 63,517 (2024 estimate), number 141 of the 296 California cities on this site.
Radar
Nearest NWS radar: KHNX. View it on radar.weather.gov.

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Sources

  • Forecast, hourly forecast, observations and alerts: National Weather Service API, api.weather.gov/points/36.0635,-119.0336 (forecast issued Oct 28, 1:56 AM PDT).
  • Official forecast page: forecast.weather.gov.
  • City location and population: U.S. Census Bureau, Vintage 2024 population estimates and 2024 Gazetteer files.
  • Snapshot taken Oct 28, 2026. The NWS and Census Bureau do not endorse OpenForecast.

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