Idaho · NWS BOI office

Twin Falls, ID weather

It is 36°F and clear at Joslin Field - Magic Valley Regional Airport as of Oct 28, 6:00 AM MDT. Overnight: Areas Of Frost, low near 33°F. Forecast from the National Weather Service, issued Oct 28, 12:30 AM MDT.

Updated Oct 28, 6:22 AM MDT (snapshot)

Current conditions

Temperature

36°F

Clear · feels like 29°F

Wind

SSW 9 mph

Humidity 75% · dew point 28°F

Pressure · visibility

30.06 inHg

Visibility 10 mi

Observed at Joslin Field - Magic Valley Regional Airport (KTWF), Oct 28, 6:00 AM MDT. Station readings can lag or be missing.

Alerts for this area

No active NWS alerts cover the Twin Falls forecast zone right now.

Around the NWS BOI forecast area

No active alerts in zones served by the BOI office near Twin Falls.

From the alert snapshot of Oct 28, 2026, 8:14 AM EDT. No alerts are active anywhere in Idaho.

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 Twin Falls (local time)
TimeTempForecastPrecip. chanceWind
Wed 6 AM33°FAreas Of Frost0%SSW 5 mph
Wed 7 AM33°FAreas Of Frost0%S 5 mph
Wed 8 AM33°FAreas Of Frost0%S 3 mph
Wed 9 AM33°FAreas Of Frost0%S 3 mph
Wed 10 AM38°FSunny0%SSW 2 mph
Wed 11 AM43°FSunny0%W 2 mph
Wed 12 PM47°FSunny0%NW 2 mph
Wed 1 PM50°FSunny0%NNW 2 mph
Wed 2 PM52°FSunny0%N 2 mph
Wed 3 PM54°FSunny0%N 3 mph
Wed 4 PM54°FSunny0%N 3 mph
Wed 5 PM53°FSunny0%NNE 5 mph
Wed 6 PM51°FMostly Clear0%NNE 3 mph
Wed 7 PM48°FMostly Clear0%NE 3 mph
Wed 8 PM44°FMostly Clear0%E 5 mph
Wed 9 PM42°FMostly Clear0%ESE 6 mph
Wed 10 PM40°FMostly Clear0%SE 5 mph
Wed 11 PM38°FMostly Clear0%SE 5 mph
Thu 12 AM36°FAreas Of Frost0%SE 5 mph
Thu 1 AM36°FAreas Of Frost0%SE 3 mph
Thu 2 AM34°FWidespread Frost0%SE 3 mph
Thu 3 AM33°FWidespread Frost0%ESE 3 mph
Thu 4 AM32°FWidespread Frost0%ESE 3 mph
Thu 5 AM31°FWidespread Frost0%ESE 3 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 Twin Falls can differ.

7-day forecast

Overnight

Low 33°F

Areas of frost. Mostly clear, with a low around 33. South southwest wind around 5 mph.

Wednesday

High 54°F·Low 30°F

Areas of frost before 10am. Sunny, with a high near 54. Northwest wind around 5 mph.

Wednesday Night: Widespread frost after midnight. Mostly clear, with a low around 30. East southeast wind around 6 mph.

Thursday

High 59°F·Low 40°F

Widespread frost before 11am. Partly sunny, with a high near 59. East wind around 7 mph.

Thursday Night: Cloudy, with a low around 40. East wind around 8 mph.

Friday

High 58°F·Low 38°F

A chance of rain showers. Mostly cloudy, with a high near 58. Chance of precipitation is 30%.

Friday Night: A slight chance of rain showers before 3am, then patchy fog and a slight chance of rain showers. Mostly cloudy, with a low around 38. Chance of precipitation is 20%.

Saturday

High 55°F·Low 39°F

A chance of rain showers and patchy fog. Mostly cloudy, with a high near 55. Chance of precipitation is 50%.

Saturday Night: Rain showers likely. Mostly cloudy, with a low around 39. Chance of precipitation is 70%.

Sunday

High 48°F·Low 32°F

A chance of rain showers. Partly sunny, with a high near 48. Chance of precipitation is 50%.

Sunday Night: A slight chance of rain showers before 11pm. Partly cloudy, with a low around 32. Chance of precipitation is 20%.

Monday

High 49°F·Low 31°F

Sunny, with a high near 49.

Monday Night: Partly cloudy, with a low around 31.

Tuesday

High 54°F

Mostly sunny, with a high near 54.

Nearby cities

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About this forecast

Forecast office
Twin Falls is served by the National Weather Service BOI forecast office, forecast zone IDZ016, county zone IDC083.
Location used
The Census Bureau's internal point for Twin Falls (42.5638, -114.4606), in Twin Falls County. Population: 55,589 (2024 estimate), number 8 of the 15 Idaho cities on this site.
Radar
Nearest NWS radar: KSFX. 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/42.5638,-114.4606 (forecast issued Oct 28, 12:30 AM MDT).
  • 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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