Boulder, MT Weather Forecast
Local 7-day forecast
Mostly Clear
Track current conditions, temperature changes, wind, and the full daily outlook for Boulder, MT in one place.
Mostly clear. Low around 62, with temperatures rising to around 65 overnight. West northwest wind around 2 mph.
Local Weather Overview
This forecast page for Boulder, 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 14, 2026 5:36 AM MDT.
The active forecast window currently covers Jul 14 to Jul 20, 2026 for Boulder, MT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 14 to Jul 20, 2026
- Latest sync
- Jul 14, 2026 5:36 AM MDT
- Forecast office
- TFX
- Source
- NOAA / NWS
Daily Outlook
This Week in Boulder
Friday looks like the warmest upcoming period in Boulder at 87 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 59 degrees F.
The strongest winds are forecast for Tuesday Night at about 1 to 14 mph NNW.
Precipitation is mentioned in 13 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 14, 2026 5:36 AM MDT
- Coverage
- 7 days
- Time zone
- America/Denver
- Forecast office
- TFX
- Radar station
- KTFX
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 after 3pm. Some of the storms could be severe. Mostly sunny. High near 85, with temperatures falling to around 82 in the afternoon. North northeast wind 1 to 9 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 9pm, then a chance of showers and thunderstorms between 9pm and 10pm, then a slight chance of showers and thunderstorms between 10pm and 11pm, then a chance of showers and thunderstorms between 11pm and midnight, then a slight chance of showers and thunderstorms. Some of the storms could be severe. Mostly cloudy. Low around 59, with temperatures rising to around 62 overnight. North northwest wind 1 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
A chance of rain showers between 8am and noon, then a chance of showers and thunderstorms between noon and 3pm, then showers and thunderstorms likely between 3pm and 5pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 80. Northeast wind 1 to 5 mph. Chance of precipitation is 70%.
Showers and thunderstorms likely before midnight. Partly cloudy, with a low around 59. North wind 0 to 5 mph. Chance of precipitation is 60%.
A chance of showers and thunderstorms between noon and 3pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 84. East northeast wind 0 to 6 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 60. North northeast wind 0 to 6 mph.
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 87. Southeast wind 0 to 7 mph.
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 59.
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 87.
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 59.
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 86.
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 59.
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 83.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Jul 14
|
Mostly Clear
|
62°F |
2 mph
WNW
|
|
Tuesday
Jul 14
|
Mostly Sunny then Chance Showers And Thunderstorms
|
85°F |
1 to 9 mph
NNE
|
|
Tuesday Night
Jul 14
|
Chance Showers And Thunderstorms
|
59°F |
1 to 14 mph
NNW
|
|
Wednesday
Jul 15
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
80°F |
1 to 5 mph
NE
|
|
Wednesday Night
Jul 15
|
Showers And Thunderstorms Likely then Partly Cloudy
|
59°F |
0 to 5 mph
N
|
|
Thursday
Jul 16
|
Mostly Sunny then Chance Showers And Thunderstorms
|
84°F |
0 to 6 mph
ENE
|
|
Thursday Night
Jul 16
|
Chance Showers And Thunderstorms then Partly Cloudy
|
60°F |
0 to 6 mph
NNE
|
|
Friday
Jul 17
|
Mostly Sunny then Chance Showers And Thunderstorms
|
87°F |
0 to 7 mph
SE
|
|
Friday Night
Jul 17
|
Chance Showers And Thunderstorms then Partly Cloudy
|
59°F |
2 to 7 mph
WNW
|
|
Saturday
Jul 18
|
Mostly Sunny then Chance Showers And Thunderstorms
|
87°F |
2 to 7 mph
WSW
|
|
Saturday Night
Jul 18
|
Chance Showers And Thunderstorms then Mostly Cloudy
|
59°F |
2 to 7 mph
WNW
|
|
Sunday
Jul 19
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
86°F |
1 to 6 mph
W
|
|
Sunday Night
Jul 19
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
59°F |
1 to 7 mph
WNW
|
|
Monday
Jul 20
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
83°F |
1 to 7 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Boulder.