Weather World
City of Ammon, IdahoAmmon, ID Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Ammon Weather Forecast
| TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT |
 |  |  |  |  | |  |  | | | | |
| Chance of T-Storm | Chance of T-Storm | Mostly Cloudy | Mostly Sunny | Mostly Clear | Sunny | Partly Cloudy | Partly Cloudy | Sunny | Mostly Clear | Mostly Clear | Partly Cloudy |
| Lo: 44°FLo: 7°C | Hi: 62°FHi: 17°C | Lo: 44°FLo: 7°C | Hi: 68°FHi: 20°C | Lo: 44°FLo: 7°C | Hi: 73°FHi: 23°C | Hi: 75°FHi: 24°C Lo: 47°FLo: 8°C | Hi: 75°FHi: 24°C Lo: 47°FLo: 8°C | Hi: 75°FHi: 24°C | Hi: 77°FHi: 25°C Lo: 48°FLo: 9°C | Hi: 77°FHi: 25°C Lo: 48°FLo: 9°C | Hi: 77°FHi: 25°C Lo: 49°FLo: 9°C |
| POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1232 PM MDT Fri Sep 18 2026 
Ammon Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Ammon Weather Map
Ammon Quick Facts
Ammon Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 1040 PM MDT Fri Sep 18 2026
Key Messages
- Light showers are possible across mainly higher terrain overnight and then light to moderate showers and thunderstorms for the Eastern Highlands Saturday afternoon
- Mostly dry conditions expected through next week, with a few showers and storms possible
- Expect warming temperatures through the week with temperatures in the mid to upper 70s/low 80s by the end of the week
Discussion
... Issued at 1116 AM MDT Fri Sep 18 2026
The strong upper low to our west continues to slowly shift east and...