Saint Ignatius, MT Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Saint Ignatius, MT in one place.
Sunny, with a high near 92. Southwest wind 1 to 6 mph.
Local Weather Overview
This forecast page for Saint Ignatius, MT is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 16, 2026 10:17 PM MDT.
The active forecast window currently covers Jul 18 to Jul 23, 2026 for Saint Ignatius, MT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 18 to Jul 23, 2026
- Latest sync
- Jul 16, 2026 10:17 PM MDT
- Forecast office
- MSO
- Source
- NOAA / NWS
Daily Outlook
This Week in Saint Ignatius
Saturday looks like the warmest upcoming period in Saint Ignatius at 92 degrees F.
Sunday Night is the coolest period ahead with temperatures near 58 degrees F.
The strongest winds are forecast for Sunday Night at about 2 to 12 mph SSW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 16, 2026 10:17 PM MDT
- Coverage
- 6 days
- Time zone
- America/Denver
- Forecast office
- MSO
- Radar station
- KMSX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 59. Southwest wind 2 to 10 mph.
Sunny, with a high near 91.
Mostly clear, with a low around 58.
Mostly sunny, with a high near 90.
Mostly cloudy, with a low around 61.
A slight chance of rain after noon. Partly sunny, with a high near 89.
A slight chance of rain before midnight. Partly cloudy, with a low around 62.
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 90.
A chance of rain before midnight. Partly cloudy, with a low around 62.
A slight chance of rain after noon. Mostly sunny, with a high near 91.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Jul 18
|
Sunny
|
92°F |
1 to 6 mph
SW
|
|
Saturday Night
Jul 18
|
Mostly Clear
|
59°F |
2 to 10 mph
SW
|
|
Sunday
Jul 19
|
Sunny
|
91°F |
1 to 9 mph
WSW
|
|
Sunday Night
Jul 19
|
Mostly Clear
|
58°F |
2 to 12 mph
SSW
|
|
Monday
Jul 20
|
Mostly Sunny
|
90°F |
1 to 6 mph
N
|
|
Monday Night
Jul 20
|
Mostly Cloudy
|
61°F |
6 mph
ENE
|
|
Tuesday
Jul 21
|
Partly Sunny then Slight Chance Light Rain
|
89°F |
2 to 6 mph
NE
|
|
Tuesday Night
Jul 21
|
Slight Chance Light Rain then Partly Cloudy
|
62°F |
5 mph
E
|
|
Wednesday
Jul 22
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
90°F |
3 mph
WSW
|
|
Wednesday Night
Jul 22
|
Chance Light Rain then Partly Cloudy
|
62°F |
5 mph
SE
|
|
Thursday
Jul 23
|
Mostly Sunny then Slight Chance Light Rain
|
91°F |
5 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Saint Ignatius.