Weather WorldFrontier School, MT Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Frontier School Weather Forecast
| REST OF TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY |
 |  |  |  |  |  | |  |  | | | |
| Cloudy | Chance of Showers | Hazy | Mostly Cloudy | Mostly Sunny | Mostly Clear | Mostly Clear | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Clear | Mostly Sunny |
| Hi: 69°FHi: 21°C | Lo: 50°FLo: 10°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 71°FHi: 22°C | Hi: 79°FHi: 26°C Lo: 51°FLo: 11°C | Hi: 79°FHi: 26°C Lo: 51°FLo: 11°C | Hi: 81°FHi: 27°C Lo: 51°FLo: 11°C | Hi: 81°FHi: 27°C Lo: 51°FLo: 11°C | Hi: 85°FHi: 29°C Lo: 55°FLo: 13°C | Hi: 85°FHi: 29°C Lo: 55°FLo: 13°C | Hi: 85°FHi: 29°C |
| POP: 50% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 121 PM MDT Sat Sep 19 2026 
Frontier School Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Frontier School Weather Map
Frontier School Quick Facts
Frontier School Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 1239 PM MDT Sat Sep 19 2026
Key Messages
- A Flood Watch is in effect through tomorrow evening for Petroleum, Garfield, Prairie, Dawson and Wibaux Counties. There is a decent chance of moderate rain south of MT 200 from Winnett to Glendive as well as south of I-94 through Wibaux. Embedded thunderstorms are possible and can cause local heavier rainfall. Light rain is possible north of the Missouri River tonight into tomorrow morning.
- A moderately strong ridge is expected to move in on Monday, which will bring above average tem...