10-day forecast for Grass Range, MT: 33° to 77°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.
77°
Best day: Saturday, October 17
45°
Worst day: Saturday, October 24
Tap any day below to see morning, afternoon, evening and overnight.
Fri, 1669° / 34°0
Morning35°feels 30°
Afternoon67°feels 65°
Evening53°feels 50°
Overnight35°feels 30°
69 °
Grass Range, Friday, 16 October
Clear. High 69°, low 34°.
Pressure30.33 inHg
Wind1.5 mph SE
Humidity31%
Visibility6.2 mi
Dew point32°
Sat, 1777° / 51°0
Morning53°feels 50°
Afternoon77°feels 75°
Evening56°feels 53°
Overnight51°feels 48°
77 °
Grass Range, Saturday, 17 October
Partly cloudy. High 77°, low 51°.
Pressure29.91 inHg
Wind10.4 mph W
Humidity20%
Visibility6.2 mi
Dew point32°
Sun, 1859° / 42°0
Morning41°feels 41°
Afternoon58°feels 55°
Evening49°feels 47°
Overnight49°feels 47°
59 °
Grass Range, Sunday, 18 October
Clear. High 59°, low 42°.
Pressure30.15 inHg
Wind8.8 mph SE
Humidity40%
Visibility6.2 mi
Dew point30°
Mon, 1971° / 41°0
Morning48°feels 46°
Afternoon64°feels 62°
Evening59°feels 57°
Overnight43°feels 41°
71 °
Grass Range, Monday, 19 October
Clear. High 71°, low 41°.
Pressure29.88 inHg
Wind8.3 mph SE
Humidity43%
Visibility—
Dew point38°
Tue, 2064° / 43°0
Morning48°feels 47°
Afternoon59°feels 57°
Evening56°feels 54°
Overnight50°feels 48°
64 °
Grass Range, Tuesday, 20 October
Clear. High 64°, low 43°.
Pressure29.91 inHg
Wind8.4 mph NW
Humidity47%
Visibility—
Dew point37°
Wed, 2163° / 47°0
Morning50°feels 47°
Afternoon57°feels 55°
Evening56°feels 53°
Overnight51°feels 49°
63 °
Grass Range, Wednesday, 21 October
Overcast. High 63°, low 47°.
Pressure29.83 inHg
Wind9.3 mph SE
Humidity42%
Visibility—
Dew point33°
Thu, 2260° / 48°0.11
Morning53°feels 51°
Afternoon59°feels 57°
Evening51°feels 49°
Overnight48°feels 45°
60 °
Grass Range, Thursday, 22 October
Light rain. High 60°, low 48°.
Pressure29.65 inHg
Wind10.9 mph W
Humidity45%
Visibility—
Dew point38°
Fri, 2346° / 35°0
Morning42°feels 34°
Afternoon40°feels 30°
Evening37°feels 24°
Overnight37°feels 25°
46 °
Grass Range, Friday, 23 October
Overcast. High 46°, low 35°.
Pressure30.03 inHg
Wind29.5 mph NW
Humidity79%
Visibility—
Dew point35°
Sat, 2445° / 33°0
Morning36°feels 24°
Afternoon42°feels 32°
Evening40°feels 33°
Overnight35°feels 28°
45 °
Grass Range, Saturday, 24 October
Partly cloudy. High 45°, low 33°.
Pressure30.47 inHg
Wind28.8 mph NW
Humidity41%
Visibility—
Dew point19°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Grass Range, MT around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.