Miles City, Montana Weather
Monsoon storms drench the south. Day 15 of summer. Read this microseason across nine climate regions →
Miles City weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast17%—93°59°—
- SundayJul 5Overcast——98°66°+5°
- MondayJul 6Overcast35%—89°69°-9°
- TuesdayJul 7Light Showers77%—74°63°-15°
- WednesdayJul 8Heavy Drizzle44%—91°64°+17°
- ThursdayJul 9Overcast23%—84°67°-7°
- FridayJul 10Clear10%—83°62°-1°
AQI 50 (Good), driven by Ozone. AQI up 16 in the last 6 hours — air quality is degrading. Ozone at AQI 47. Overcast through the UV peak window (cloud cover ~67%) — afternoon ozone should stay flat.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 47. Overcast through the UV peak window (cloud cover ~67%) — afternoon ozone should stay flat.
- Present
- AQI 47
- UV peak
- 0.4 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 6
PM × Wind × Precip
PM2.5 at 4.6 µg/m³ (AQI 26), ratio 0.64 with 7 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.64
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- transport
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:27 PM
- Moonset
- 11:16 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
Miles City at a glance
- Today vs. normal: 27°F above the seasonal normal for this latitude
- Last frost: May 24 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 59301
16-Day Forecast — Miles City
- Sat93°59°17%
- Sun98°66°5%
- Mon89°69°35%
- Tue74°63°77%
- Wed91°64°44%
- Thu84°67°23%
- Fri83°62°10%
- Sat101°66°4%
- Sun106°78°5%
- Mon103°75°6%
- Tue107°79°14%
- Wed105°80°16%
- Thu101°78°16%
- Fri99°67°9%
- Sat96°70°12%
- Sun92°69°15%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 5, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — Miles City
SPC has placed Miles City in the Marginal Risk category for severe thunderstorms tomorrow.
- TODAYNONENo severe risk
- TOMORROWMRGLMarginal Risk
- DAY 3TSTMGeneral Thunderstorms
Isolated severe storms possible. Limited threat for hail or damaging wind.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
ZIP codes in Miles City
- 59301