Idaho · NWS PIH office

Ammon, ID weather

It is 35°F and clear at Idaho Falls Regional Airport as of Oct 28, 2:53 AM MDT. Overnight: Mostly Clear, low near 32°F, 2% chance of precipitation. Forecast from the National Weather Service, issued Oct 28, 12:31 AM MDT.

Updated Oct 28, 3:30 AM MDT (snapshot)

Current conditions

Temperature

35°F

Clear · feels like 29°F

Wind

S 7 mph

Humidity 88% · dew point 32°F

Pressure · visibility

30.03 inHg

Visibility 10 mi

Observed at Idaho Falls Regional Airport (KIDA), Oct 28, 2:53 AM MDT. Station readings can lag or be missing.

Alerts for this area

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

Around the NWS PIH forecast area

No active alerts in zones served by the PIH office near Ammon.

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 Ammon (local time)
TimeTempForecastPrecip. chanceWind
Wed 5 AM34°FPartly Cloudy1%SSW 16 mph
Wed 6 AM33°FPartly Sunny0%SSW 15 mph
Wed 7 AM33°FPartly Sunny0%SSW 14 mph
Wed 8 AM32°FPartly Sunny0%SSW 12 mph
Wed 9 AM34°FPartly Sunny0%SSW 12 mph
Wed 10 AM36°FPartly Sunny0%SSW 13 mph
Wed 11 AM39°FMostly Sunny0%SW 13 mph
Wed 12 PM41°FMostly Sunny0%SW 13 mph
Wed 1 PM43°FSunny0%SW 12 mph
Wed 2 PM45°FSunny0%SW 12 mph
Wed 3 PM46°FSunny0%SW 10 mph
Wed 4 PM46°FSunny0%SW 9 mph
Wed 5 PM47°FSunny0%SW 7 mph
Wed 6 PM44°FMostly Clear0%S 3 mph
Wed 7 PM41°FMostly Clear0%S 3 mph
Wed 8 PM41°FMostly Clear0%S 3 mph
Wed 9 PM37°FMostly Clear0%SE 6 mph
Wed 10 PM36°FMostly Clear0%SE 6 mph
Wed 11 PM35°FMostly Clear0%SE 6 mph
Thu 12 AM35°FMostly Clear0%SE 5 mph
Thu 1 AM34°FMostly Clear0%SE 5 mph
Thu 2 AM34°FMostly Clear0%SE 5 mph
Thu 3 AM33°FPartly Cloudy0%SE 3 mph
Thu 4 AM31°FPartly Cloudy0%SE 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 Ammon can differ.

7-day forecast

Overnight

Low 32°F

Mostly clear. Low around 32, with temperatures rising to around 34 overnight. South southwest wind around 13 mph, with gusts as high as 26 mph.

Wednesday

High 48°F·Low 28°F

Sunny, with a high near 48. South southwest wind 6 to 13 mph, with gusts as high as 25 mph.

Wednesday Night: Mostly clear. Low around 28, with temperatures rising to around 30 overnight. South southeast wind around 6 mph.

Thursday

High 52°F·Low 39°F

Partly sunny, with a high near 52. North northeast wind around 5 mph.

Thursday Night: Mostly cloudy, with a low around 39. East wind around 6 mph.

Friday

High 57°F·Low 40°F

Mostly cloudy, with a high near 57.

Friday Night: A chance of rain. Mostly cloudy, with a low around 40. Chance of precipitation is 50%.

Saturday

High 52°F·Low 40°F

Rain likely before noon, then showers and thunderstorms. Mostly cloudy, with a high near 52. Chance of precipitation is 80%.

Saturday Night: Showers and thunderstorms likely before midnight, then rain. Mostly cloudy, with a low around 40. Chance of precipitation is 80%.

Sunday

High 48°F·Low 34°F

Rain. Mostly cloudy, with a high near 48. Chance of precipitation is 80%.

Sunday Night: Rain likely. Mostly cloudy, with a low around 34. Chance of precipitation is 60%.

Monday

High 45°F·Low 31°F

A slight chance of rain before 11am. Mostly sunny, with a high near 45. Chance of precipitation is 20%.

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

Tuesday

High 48°F

Mostly sunny, with a high near 48.

Nearby cities

Larger cities in the area

Other cities in Bonneville County

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

About this forecast

Forecast office
Ammon is served by the National Weather Service PIH forecast office, forecast zone IDZ053, county zone IDC019.
Location used
The Census Bureau's internal point for Ammon (43.4750, -111.9596), in Bonneville County. Population: 20,095 (2024 estimate), number 15 of the 15 Idaho cities on this site.
Radar
Nearest NWS radar: KSFX. View it on radar.weather.gov.

On Amazon

Weather-ready picks

As an Amazon Associate I earn from qualifying purchases.

Home & kitchen LEVOIT Air Purifier An air purifier for smoky or high-pollen days indoors. View on Amazon → Men’s fashion Hanes Fleece Hooded Sweatshirt A warm hoodie for chilly mornings. View on Amazon → Fitness & outdoors Stanley Quencher H2.0 Tumbler A big tumbler for long commutes and outdoor days. View on Amazon → Fitness & outdoors LifeStraw Personal Water Filter A personal water filter worth adding to an emergency kit. View on Amazon →

Sources

  • Forecast, hourly forecast, observations and alerts: National Weather Service API, api.weather.gov/points/43.475,-111.9596 (forecast issued Oct 28, 12:31 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.

More Idaho cities