National Weather Service Forecast for: Miles City MT
Issued by: National Weather Service Billings, MT
Updated: 12:32 am MDT Aug 20, 2026
 
Overnight

Overnight: Patchy smoke. Mostly clear, with a steady temperature around 62. Calm wind.
Patchy Smoke

 Thursday

Thursday: Patchy smoke before noon. Sunny and hot, with a high near 92. Calm wind becoming north northeast around 5 mph in the afternoon.
Patchy Smoke
then Sunny
 Thursday
Night
Thursday Night: Mostly clear, with a low around 61. Northeast wind 5 to 8 mph.
Mostly Clear

 Friday

Friday: Mostly sunny and hot, with a high near 91. Northeast wind 5 to 10 mph.
Hot

 Friday
Night
Friday Night: Partly cloudy, with a low around 62. Northeast wind 8 to 11 mph.
Partly Cloudy

 Saturday

Saturday: Mostly sunny and hot, with a high near 92. East southeast wind 8 to 15 mph.
Hot

 Saturday
Night
Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Southeast wind 11 to 16 mph. Chance of precipitation is 30%.
Chance
Showers
 Sunday

Sunday: Mostly sunny and hot, with a high near 96. Southeast wind 6 to 8 mph becoming west northwest in the afternoon.
Hot

 Sunday
Night
Sunday Night: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 64. West southwest wind 5 to 8 mph.
Slight Chance
T-storms then
Partly Cloudy
Lo 62 °F Hi 92 °F Lo 61 °F Hi 91 °F Lo 62 °F Hi 92 °F Lo 67 °F Hi 96 °F Lo 64 °F

 

Overnight
 
 Patchy smoke. Mostly clear, with a steady temperature around 62. Calm wind.
Thursday
 
 Patchy smoke before noon. Sunny and hot, with a high near 92. Calm wind becoming north northeast around 5 mph in the afternoon.
Thursday Night
 
 Mostly clear, with a low around 61. Northeast wind 5 to 8 mph.
Friday
 
 Mostly sunny and hot, with a high near 91. Northeast wind 5 to 10 mph.
Friday Night
 
 Partly cloudy, with a low around 62. Northeast wind 8 to 11 mph.
Saturday
 
 Mostly sunny and hot, with a high near 92. East southeast wind 8 to 15 mph.
Saturday Night
 
 A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Southeast wind 11 to 16 mph. Chance of precipitation is 30%.
Sunday
 
 Mostly sunny and hot, with a high near 96. Southeast wind 6 to 8 mph becoming west northwest in the afternoon.
Sunday Night
 
 A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 64. West southwest wind 5 to 8 mph.
Monday
 
 Sunny, with a high near 89. Northwest wind 6 to 10 mph.
Monday Night
 
 Mostly clear, with a low around 59. North wind 3 to 8 mph.
Tuesday
 
 Mostly sunny, with a high near 88. North northeast wind 3 to 6 mph.
Tuesday Night
 
 Partly cloudy, with a low around 60. Northeast wind 6 to 8 mph.
Wednesday
 
 Mostly sunny and hot, with a high near 90. East southeast wind 5 to 7 mph.

 

Forecast from NOAA-NWS for Miles City MT.