Avon, MT Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Avon, MT in one place.
Mostly sunny, with a high near 61. East northeast wind 5 to 9 mph.
Local Weather Overview
This forecast page for Avon, 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 14, 2026 9:14 PM MDT.
The active forecast window currently covers Sep 16 to Sep 21, 2026 for Avon, MT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 16 to Sep 21, 2026
- Latest sync
- Sep 14, 2026 9:14 PM MDT
- Forecast office
- MSO
- Source
- NOAA / NWS
Daily Outlook
This Week in Avon
Thursday looks like the warmest upcoming period in Avon at 73 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 39 degrees F.
The strongest winds are forecast for Wednesday at about 5 to 9 mph ENE.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 14, 2026 9:14 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 39. East wind 5 to 8 mph.
Sunny, with a high near 73.
Showers and thunderstorms likely before midnight, then a chance of rain. Mostly cloudy, with a low around 44. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of rain before noon, then showers and thunderstorms likely. Mostly cloudy, with a high near 66. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of showers and thunderstorms before midnight, then a slight chance of rain. Mostly cloudy, with a low around 42.
A chance of rain. Partly sunny, with a high near 65.
Mostly clear, with a low around 41.
Sunny, with a high near 67.
Mostly clear, with a low around 41.
Sunny, with a high near 70.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 16
|
Mostly Sunny
|
61°F |
5 to 9 mph
ENE
|
|
Wednesday Night
Sep 16
|
Mostly Clear
|
39°F |
5 to 8 mph
E
|
|
Thursday
Sep 17
|
Sunny
|
73°F |
3 mph
S
|
|
Thursday Night
Sep 17
|
Showers And Thunderstorms Likely then Chance Light Rain
|
44°F |
1 to 5 mph
ESE
|
|
Friday
Sep 18
|
Chance Light Rain then Showers And Thunderstorms Likely
|
66°F |
1 to 5 mph
W
|
|
Friday Night
Sep 18
|
Chance Showers And Thunderstorms then Slight Chance Light Rain
|
42°F |
1 to 5 mph
W
|
|
Saturday
Sep 19
|
Chance Light Rain
|
65°F |
1 to 7 mph
W
|
|
Saturday Night
Sep 19
|
Mostly Clear
|
41°F |
2 to 7 mph
WSW
|
|
Sunday
Sep 20
|
Sunny
|
67°F |
3 mph
WSW
|
|
Sunday Night
Sep 20
|
Mostly Clear
|
41°F |
1 to 5 mph
SE
|
|
Monday
Sep 21
|
Sunny
|
70°F |
3 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Avon.