10-day forecast for Sumatra, MT: 33° to 73°, with precipitation expected on 0 days. The table below breaks each day into morning, afternoon, evening and overnight.
73°
Best day: Saturday, October 17
51°
Worst day: Thursday, October 15
Tap any day below to see morning, afternoon, evening and overnight.
Thu, 1551° / 35°0
Morning43°feels 34°
Afternoon51°feels 48°
Evening40°feels 35°
Overnight43°feels 38°
51 °
Sumatra, Thursday, 15 October
Clear. High 51°, low 35°.
Pressure30.65 inHg
Wind21.2 mph NW
Humidity52%
Visibility6.2 mi
Dew point24°
Fri, 1660° / 33°0
Morning33°feels 24°
Afternoon58°feels 55°
Evening51°feels 48°
Overnight33°feels 30°
60 °
Sumatra, Friday, 16 October
Clear. High 60°, low 33°.
Pressure30.50 inHg
Wind13 mph S
Humidity44%
Visibility6.2 mi
Dew point23°
Sat, 1773° / 50°0
Morning51°feels 48°
Afternoon72°feels 70°
Evening59°feels 57°
Overnight50°feels 47°
73 °
Sumatra, Saturday, 17 October
Partly cloudy. High 73°, low 50°.
Pressure29.97 inHg
Wind15 mph SW
Humidity25%
Visibility6.2 mi
Dew point31°
Sun, 1860° / 45°0
Morning48°feels 45°
Afternoon56°feels 53°
Evening54°feels 51°
Overnight51°feels 48°
60 °
Sumatra, Sunday, 18 October
Overcast. High 60°, low 45°.
Pressure30.18 inHg
Wind11.1 mph SE
Humidity37%
Visibility—
Dew point29°
Mon, 1963° / 43°0
Morning47°feels 44°
Afternoon57°feels 55°
Evening57°feels 55°
Overnight53°feels 50°
63 °
Sumatra, Monday, 19 October
Partly cloudy. High 63°, low 43°.
Pressure29.88 inHg
Wind9 mph W
Humidity46%
Visibility—
Dew point35°
Tue, 2061° / 50°0
Morning55°feels 52°
Afternoon59°feels 56°
Evening54°feels 51°
Overnight50°feels 48°
61 °
Sumatra, Tuesday, 20 October
Overcast. High 61°, low 50°.
Pressure29.97 inHg
Wind12.9 mph N
Humidity34%
Visibility—
Dew point31°
Wed, 2161° / 43°0
Morning46°feels 42°
Afternoon54°feels 51°
Evening56°feels 53°
Overnight50°feels 46°
61 °
Sumatra, Wednesday, 21 October
Partly cloudy. High 61°, low 43°.
Pressure30.15 inHg
Wind14.5 mph SE
Humidity36%
Visibility—
Dew point26°
Thu, 2269° / 46°0
Morning51°feels 48°
Afternoon63°feels 60°
Evening62°feels 59°
Overnight55°feels 52°
69 °
Sumatra, Thursday, 22 October
Clear. High 69°, low 46°.
Pressure29.83 inHg
Wind10.6 mph S
Humidity33%
Visibility—
Dew point31°
Fri, 2358° / 49°0
Morning55°feels 53°
Afternoon57°feels 55°
Evening53°feels 49°
Overnight50°feels 46°
58 °
Sumatra, Friday, 23 October
Overcast. High 58°, low 49°.
Pressure30.00 inHg
Wind25.2 mph N
Humidity32%
Visibility—
Dew point28°
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 Sumatra, 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.