Miles City

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Yellowstone River Valley Badlands - Sandstone Cliffs and Hoodoos Near Miles City, Montana

Today’s Forecast:

97°F
Current Temperature
Clear
Station: KMLS
Observed at: 12:20 pm
Wind: 0 mph | Humidity: 17%
⚠️
Extreme Heat Warning
Extreme Heat Warning issued July 25 at 10:52AM MDT until July 26 at 9:00PM MDT by NWS Billings MT (Expires: July 26, 2026 10:00 pm)
Show Alert Details & Instructions
Description: * WHAT...Dangerously hot conditions with high temperatures of 100 to 108, hottest over eastern Montana. Today is expected to be the hottest day. * WHERE...Portions of central, south central, and southeast Montana and north central Wyoming. * WHEN...Until 9 PM MDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Dangerously hot daytime temperatures combined with warm overnight low temperatures will produce cumulative heat stress. This heat stress will quickly become dangerous to anyone without adequate cooling and hydration. Instructions: Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.
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Red Flag Warning
Red Flag Warning issued July 25 at 2:22AM MDT until July 26 at 12:00AM MDT by NWS Billings MT (Expires: July 26, 2026 1:00 am)
Show Alert Details & Instructions
Description: * IMPACTS: Low humidities, hot temperatures, and high-based thunderstorms with gusty and erratic outflow winds will create erratic fire behavior and potential for new fire starts. * AFFECTED AREA: In North Central WY Fire Zones...274...284. In South Central MT Fire Zones...123...124...125...126...127 128...129. In Southeast MT Fire Zones...130...131...132. In Southeast MT and Northwest SD Fire Zone...133. * COUNTIES AFFECTED: In Central MT...Golden Valley...Musselshell...Wheatland. In North Central WY...Big Horn...Johnson...Sheridan...Washakie. In Northwest SD...Harding. In South Central MT...Big Horn...Carbon...Park...Stillwater Sweet Grass...Yellowstone. In Southeast MT...Carter...Custer...Fallon...Powder River Rosebud...Treasure. In Southwest MT...Gallatin. * WIND: Southwest 10 to 15 mph with gusts to 25 mph. * THUNDERSTORMS: Isolated to scattered afternoon and evening thunderstorms will produce gusty and erratic winds, and spotty rainfall. * HUMIDITY: Minimums of 11 to 19 percent. * TEMPERATURES: Highs of 97 to 107 below 5000 feet, hottest in the east.. Instructions: A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.
Today:Patchy smoke between 9am and 4pm, then patchy smoke and a slight chance of showers and thunderstorms. Mostly sunny, with a high near 106. South southeast wind 3 to 7 mph. Chance of precipitation is 20%.
Tonight:A slight chance of showers and thunderstorms before midnight. Mostly cloudy. Low around 73, with temperatures rising to around 75 overnight. West wind 5 to 10 mph. Chance of precipitation is 20%.
Sunday:Sunny, with a high near 101. North northwest wind 7 to 12 mph.

Today’s Report:

🚲 Biking

  5 /100

Not Recommended for biking. High near 106°F. Low rain risk (21%). Light wind (10 mph). Extreme heat (high near 106°F). Smoke or haze in forecast. Slight chance of thunderstorms. Temperatures outside comfort limits (106°F).

  • Temp: Unfavorable weather factor
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Heat: Unfavorable weather factor
  • Smoke: Marginal weather factor
  • Thunderstorm: Marginal weather factor
  • Alert: Unfavorable weather factor
⚠️ Active weather alerts affect this activity!
Tomorrow's Outlook:
Not Recommended 6/100

Golf

  5 /100

Not Recommended for golf. High near 106°F. Risk of rain later today (21%). Light wind (10 mph). Extreme heat (high near 106°F). Smoke or haze in forecast. Slight chance of thunderstorms. Temperatures outside comfort limits (106°F).

  • Temp: Unfavorable weather factor
  • Rain: Marginal weather factor
  • Wind: Favorable conditions
  • Heat: Unfavorable weather factor
  • Smoke: Marginal weather factor
  • Thunderstorm: Marginal weather factor
Tomorrow's Outlook:
Not Recommended 12/100

🎪 Outdoor Events / Activities

  5 /100

Not Recommended for outdoor events / activities. High near 106°F. Risk of rain later today (21%). Light wind (10 mph). Extreme heat (high near 106°F). Smoke or haze in forecast. Slight chance of thunderstorms. Temperatures outside comfort limits (106°F).

  • Temp: Unfavorable weather factor
  • Rain: Marginal weather factor
  • Wind: Favorable conditions
  • Heat: Unfavorable weather factor
  • Smoke: Marginal weather factor
  • Thunderstorm: Marginal weather factor
Tomorrow's Outlook:
Not Recommended 12/100

About Miles City

Miles City is a Montana destination for river parks, cycling, golf, and outdoor events in an eastern Montana hub.

Make the Most of a Miles City Day

Use the forecast to match the day’s route, launch, road access, and turnaround time to wind, precipitation, temperature, smoke, water conditions, and elevation. Keep a shorter or lower-elevation backup ready.

Weather Tips for Miles City

  • Check current access, alerts, fire restrictions, and local forecasts before setting out.
  • Turn around before exposed ridges, overlooks, or open ground become unsafe in thunder, high wind, smoke, or poor visibility.
  • Montana weather can shift quickly; carry layers, sun protection, water, and a reliable navigation plan.
  • Allow extra daylight for remote roads, seasonal traffic, wildlife, and changing trail or shoreline conditions.

Nearby Towns and Areas

This page can also be useful when planning outdoor time near:

  • Tongue River
  • Yellowstone River
  • Fort Keogh
  • Spotted Eagle Recreation Area
  • Terry

Plan Around the Conditions

Choose the safest and most enjoyable version of a Miles City day by matching the activity to current wind, precipitation, smoke, temperature, road access, trail surfaces, water conditions, and daylight.

7-Day Forecast for Miles City

97°F
Current Temperature
Clear
Station: KMLS
Observed at: 12:20 pm
Wind: 0 mph | Humidity: 17%
Sat 🌫
106° 73°
15%
Sun
101° 71°
0%
Mon
102° 70°
3%
Tue
104° 72°
4%
Wed
104° 70°
9%
Thu
103° 71°
6%
Fri
103° 71°
11%

7-Day High Temperature Trend

106° Sat 101° Sun 102° Mon 104° Tue 104° Wed 103° Thu 103° Fri

7-Day Low Temperature Trend

73° Sat 71° Sun 70° Mon 72° Tue 70° Wed 71° Thu 71° Fri

📊 7-Day Outdoor Outlook

Good Fair Poor 5 Sat 12 Sun 12 Mon 6 Tue 6 Wed 12 Thu 12 Fri
Forecast data from the National Weather Service  |  Last Updated: July 25, 2026 1:04 pm CDT

Miles City Weather by Season

Winter

Winter around Miles City can bring snow, ice, strong wind, short daylight, and abrupt cold. Check road, trail, campground, and facility access before leaving, and expect conditions to change sharply with elevation.

Spring

Spring is variable, with freeze-thaw cycles, mud, lingering mountain snow, rising water, and occasional late storms. Lower routes often open well before high-country roads and trails.

Summer

Summer generally offers the broadest access, but heat, afternoon thunderstorms, wildfire smoke, fire restrictions, gusty wind, and limited shade can alter plans. Start exposed outings early and carry more water than expected.

Fall

Fall brings cooler days, clearer periods, changing color, shorter daylight, and the possibility of early snow. Seasonal services can close before winter weather becomes continuous, so confirm local operations.

Key Climate Data Points

  • Annual average temperature: around 43–47°F, using the relevant local and elevation context.
  • Annual snowfall: commonly 25–45 inches, though wind redistribution and year-to-year swings are substantial.
  • Warmest months: July and August are normally warmest.
  • Coolest months: December and January are typically coolest.
  • Wettest season: late spring and early summer often bring the most precipitation, with local mountain variation.
  • Driest season: midsummer is often driest, although thunderstorms remain possible.
  • Best outdoor window: June through September for the broadest access, with shoulder seasons useful at lower elevations.