10-day forecast for Decker, MT: 34° to 77°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
77°
Best day: Monday, October 19
57° · 0.2 in
Worst day: Tuesday, October 20
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1246° / 34°0.03
Morning36°feels 28°
Afternoon44°feels 42°
Evening42°feels 38°
Overnight40°feels 33°
46 °
Decker, Monday, 12 October
Light rain. High 46°, low 34°.
Pressure30.03 inHg
Wind7.9 mph NW
Humidity71%
Visibility6.2 mi
Dew point34°
Tue, 1348° / 37°0.04
Morning39°feels 36°
Afternoon45°feels 44°
Evening45°feels 45°
Overnight38°feels 35°
48 °
Decker, Tuesday, 13 October
Light rain. High 48°, low 37°.
Pressure30.09 inHg
Wind1.2 mph SW
Humidity81%
Visibility6.2 mi
Dew point38°
Wed, 1462° / 36°0
Morning38°feels 38°
Afternoon59°feels 57°
Evening54°feels 52°
Overnight40°feels 40°
62 °
Decker, Wednesday, 14 October
Partly cloudy. High 62°, low 36°.
Pressure30.12 inHg
Wind3.2 mph E
Humidity66%
Visibility6.2 mi
Dew point40°
Thu, 1554° / 40°0
Morning45°feels 39°
Afternoon53°feels 50°
Evening43°feels 41°
Overnight48°feels 43°
54 °
Decker, Thursday, 15 October
Clear. High 54°, low 40°.
Pressure30.62 inHg
Wind12.1 mph NW
Humidity44%
Visibility6.2 mi
Dew point28°
Fri, 1671° / 36°0
Morning42°feels 42°
Afternoon59°feels 56°
Evening60°feels 57°
Overnight48°feels 46°
71 °
Decker, Friday, 16 October
Clear. High 71°, low 36°.
Pressure30.39 inHg
Wind5.4 mph S
Humidity37%
Visibility—
Dew point29°
Sat, 1774° / 40°0
Morning48°feels 47°
Afternoon65°feels 63°
Evening62°feels 59°
Overnight53°feels 50°
74 °
Decker, Saturday, 17 October
Clear. High 74°, low 40°.
Pressure29.88 inHg
Wind3.9 mph NE
Humidity25%
Visibility—
Dew point26°
Sun, 1873° / 50°0
Morning55°feels 54°
Afternoon68°feels 66°
Evening63°feels 60°
Overnight55°feels 52°
73 °
Decker, Sunday, 18 October
Overcast. High 73°, low 50°.
Pressure29.91 inHg
Wind5.2 mph E
Humidity19%
Visibility—
Dew point23°
Mon, 1977° / 47°0
Morning54°feels 53°
Afternoon71°feels 69°
Evening65°feels 63°
Overnight58°feels 55°
77 °
Decker, Monday, 19 October
Clear. High 77°, low 47°.
Pressure29.80 inHg
Wind10.5 mph SE
Humidity17%
Visibility—
Dew point22°
Tue, 2057° / 49°0.2
Morning54°feels 50°
Afternoon50°feels 43°
Evening51°feels 47°
Overnight51°feels 45°
57 °
Decker, Tuesday, 20 October
Rain. High 57°, low 49°.
Pressure29.62 inHg
Wind26.4 mph NW
Humidity68%
Visibility—
Dew point40°
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 Decker, 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.