Cyr, MT Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Cyr, MT in one place.
Sunny, with a high near 68. East southeast wind 2 to 6 mph.
Local Weather Overview
This forecast page for Cyr, 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: Sep 16, 2026 3:56 PM MDT.
The active forecast window currently covers Sep 17 to Sep 22, 2026 for Cyr, MT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 17 to Sep 22, 2026
- Latest sync
- Sep 16, 2026 3:56 PM MDT
- Forecast office
- MSO
- Source
- NOAA / NWS
Daily Outlook
This Week in Cyr
Thursday looks like the warmest upcoming period in Cyr at 68 degrees F.
Sunday Night is the coolest period ahead with temperatures near 45 degrees F.
The strongest winds are forecast for Thursday Night at about 3 to 9 mph S.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 16, 2026 3:56 PM MDT
- Coverage
- 7 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
A chance of showers and thunderstorms before 9pm, then a chance of rain between 9pm and 1am. Mostly cloudy, with a low around 49. South wind 3 to 9 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain between noon and 3pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 63. West southwest wind 2 to 6 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 9pm, then a chance of rain. Mostly cloudy, with a low around 48. Chance of precipitation is 40%.
A chance of rain. Mostly sunny, with a high near 63.
Mostly clear, with a low around 46.
Sunny, with a high near 68.
Clear, with a low around 45.
Sunny, with a high near 67.
Mostly clear, with a low around 45.
Sunny, with a high near 65.
Mostly clear, with a low around 45.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Sep 17
|
Sunny
|
68°F |
2 to 6 mph
ESE
|
|
Thursday Night
Sep 17
|
Chance Showers And Thunderstorms then Chance Light Rain
|
49°F |
3 to 9 mph
S
|
|
Friday
Sep 18
|
Partly Sunny then Chance Showers And Thunderstorms
|
63°F |
2 to 6 mph
WSW
|
|
Friday Night
Sep 18
|
Chance Showers And Thunderstorms then Chance Light Rain
|
48°F |
3 mph
WSW
|
|
Saturday
Sep 19
|
Chance Light Rain
|
63°F |
3 mph
WNW
|
|
Saturday Night
Sep 19
|
Mostly Clear
|
46°F |
3 mph
SW
|
|
Sunday
Sep 20
|
Sunny
|
68°F |
2 mph
S
|
|
Sunday Night
Sep 20
|
Clear
|
45°F |
2 mph
SW
|
|
Monday
Sep 21
|
Sunny
|
67°F |
3 mph
SW
|
|
Monday Night
Sep 21
|
Mostly Clear
|
45°F |
5 mph
WSW
|
|
Tuesday
Sep 22
|
Sunny
|
65°F |
3 mph
SW
|
|
Tuesday Night
Sep 22
|
Mostly Clear
|
45°F |
3 mph
WSW
|
Nearby Forecasts
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