Idaho · NWS BOI office

Nampa, ID weather

It is 37°F and clear at Nampa Municipal Airport as of Oct 28, 2:55 AM MDT. Overnight: Patchy Fog, low near 34°F. Forecast from the National Weather Service, issued Oct 28, 12:30 AM MDT.

Updated Oct 28, 3:15 AM MDT (snapshot)

Current conditions

Temperature

37°F

Clear · feels like 34°F

Wind

SE 5 mph

Humidity 81% · dew point 32°F

Pressure · visibility

30.04 inHg

Visibility 10 mi

Observed at Nampa Municipal Airport (KMAN), Oct 28, 2:55 AM MDT. Station readings can lag or be missing.

Alerts for this area

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

Around the NWS BOI forecast area

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

From the alert snapshot of Oct 28, 2026, 5:12 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 Nampa (local time)
TimeTempForecastPrecip. chanceWind
Wed 5 AM35°FPatchy Fog0%SE 3 mph
Wed 6 AM34°FPatchy Frost0%SE 3 mph
Wed 7 AM34°FPatchy Frost0%SE 3 mph
Wed 8 AM34°FPatchy Frost0%SE 3 mph
Wed 9 AM35°FMostly Sunny0%SE 5 mph
Wed 10 AM41°FMostly Sunny0%SE 5 mph
Wed 11 AM46°FMostly Sunny0%SE 5 mph
Wed 12 PM50°FMostly Sunny0%SE 6 mph
Wed 1 PM52°FMostly Sunny0%SE 6 mph
Wed 2 PM55°FSunny0%SSE 5 mph
Wed 3 PM56°FSunny0%SSE 3 mph
Wed 4 PM57°FSunny0%SE 2 mph
Wed 5 PM57°FSunny0%ESE 2 mph
Wed 6 PM55°FMostly Clear0%ENE 2 mph
Wed 7 PM53°FMostly Clear0%E 1 mph
Wed 8 PM49°FMostly Clear1%E 1 mph
Wed 9 PM44°FClear1%ESE 2 mph
Wed 10 PM41°FClear1%SE 2 mph
Wed 11 PM39°FMostly Clear1%SE 2 mph
Thu 12 AM38°FClear1%SE 2 mph
Thu 1 AM38°FClear1%SE 2 mph
Thu 2 AM37°FAreas Of Frost1%SE 2 mph
Thu 3 AM36°FAreas Of Frost1%SE 2 mph
Thu 4 AM35°FAreas Of Frost0%SSE 2 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 Nampa can differ.

7-day forecast

Overnight

Low 34°F

Patchy fog. Partly cloudy, with a low around 34. Southeast wind around 3 mph.

Wednesday

High 57°F·Low 32°F

Patchy frost before 9am. Mostly sunny, with a high near 57. Southeast wind 2 to 6 mph.

Wednesday Night: Widespread frost after 2am. Mostly clear, with a low around 32. East southeast wind around 2 mph.

Thursday

High 58°F·Low 37°F

Widespread frost before 11am. Mostly sunny, with a high near 58. South southeast wind around 5 mph.

Thursday Night: Mostly cloudy, with a low around 37. Southwest wind around 3 mph.

Friday

High 60°F·Low 36°F

Mostly cloudy, with a high near 60.

Friday Night: Partly cloudy, with a low around 36.

Saturday

High 57°F·Low 39°F

Patchy fog between 7am and 10am, then a slight chance of rain showers. Mostly cloudy, with a high near 57. Chance of precipitation is 20%.

Saturday Night: Rain showers likely before 3am, then rain showers likely and patchy fog. Mostly cloudy, with a low around 39. Chance of precipitation is 60%.

Sunday

High 54°F·Low 33°F

A chance of rain showers before 5pm. Partly sunny, with a high near 54. Chance of precipitation is 40%.

Sunday Night: Mostly clear, with a low around 33.

Monday

High 56°F·Low 34°F

Sunny, with a high near 56.

Monday Night: Partly cloudy, with a low around 34.

Tuesday

High 58°F

Partly sunny, with a high near 58.

Nearby cities

Larger cities in the area

Other cities in Canyon County

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

About this forecast

Forecast office
Nampa is served by the National Weather Service BOI forecast office, forecast zone IDZ012, county zone IDC027.
Location used
The Census Bureau's internal point for Nampa (43.5850, -116.5629), in Canyon County. Population: 117,350 (2024 estimate), number 3 of the 15 Idaho cities on this site.
Radar
Nearest NWS radar: KCBX. 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/43.585,-116.5629 (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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