Lewistown, MT Weather Forecast
Local 7-day forecast
Patchy Smoke
Track current conditions, temperature changes, wind, and the full daily outlook for Lewistown, MT in one place.
Patchy smoke. Sunny, with a high near 95. West wind 6 to 15 mph, with gusts as high as 26 mph.
Local Weather Overview
This forecast page for Lewistown, 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 23, 2026 1:52 AM MDT.
The active forecast window currently covers Jul 24 to Jul 29, 2026 for Lewistown, MT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 24 to Jul 29, 2026
- Latest sync
- Jul 23, 2026 1:52 AM MDT
- Forecast office
- TFX
- Source
- NOAA / NWS
Daily Outlook
This Week in Lewistown
Saturday looks like the warmest upcoming period in Lewistown at 100 degrees F.
Sunday Night is the coolest period ahead with temperatures near 59 degrees F.
The strongest winds are forecast for Friday at about 6 to 15 mph W.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 23, 2026 1:52 AM MDT
- Coverage
- 6 days
- Time zone
- America/Denver
- Forecast office
- TFX
- Radar station
- KBLX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Patchy smoke before 7pm. Mostly clear, with a low around 61. South southwest wind 5 to 10 mph, with gusts as high as 23 mph.
A slight chance of showers and thunderstorms after noon. Sunny, with a high near 100. South southwest wind 3 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 60. South southwest wind 6 to 12 mph, with gusts as high as 21 mph.
Sunny, with a high near 95. West wind 2 to 6 mph.
Partly cloudy, with a low around 59.
Sunny, with a high near 93.
A slight chance of rain showers before midnight. Partly cloudy, with a low around 59.
Sunny, with a high near 92.
Mostly clear, with a low around 59.
Sunny, with a high near 91.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Jul 24
|
Patchy Smoke
|
95°F |
6 to 15 mph
W
|
|
Friday Night
Jul 24
|
Patchy Smoke then Mostly Clear
|
61°F |
5 to 10 mph
SSW
|
|
Saturday
Jul 25
|
Sunny then Slight Chance Showers And Thunderstorms
|
100°F |
3 to 13 mph
SSW
|
|
Saturday Night
Jul 25
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
60°F |
6 to 12 mph
SSW
|
|
Sunday
Jul 26
|
Sunny
|
95°F |
2 to 6 mph
W
|
|
Sunday Night
Jul 26
|
Partly Cloudy
|
59°F |
5 to 8 mph
WSW
|
|
Monday
Jul 27
|
Sunny
|
93°F |
1 to 7 mph
NNW
|
|
Monday Night
Jul 27
|
Slight Chance Rain Showers then Partly Cloudy
|
59°F |
6 to 10 mph
ESE
|
|
Tuesday
Jul 28
|
Sunny
|
92°F |
3 to 7 mph
WNW
|
|
Tuesday Night
Jul 28
|
Mostly Clear
|
59°F |
8 mph
ESE
|
|
Wednesday
Jul 29
|
Sunny
|
91°F |
3 to 8 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Lewistown.
Nearby forecast pages are not available for this location yet.
