10-day forecast for Marion, MT: 47° to 89°, with precipitation expected on 0 days. The table below breaks each day into morning, afternoon, evening and overnight.
89°
Best day: Monday, August 17
79°
Worst day: Thursday, August 13
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0984° / 47°0
Morning50°feels 47°
Afternoon82°feels 79°
Evening75°feels 74°
Overnight51°feels 47°
84 °
Marion, Sunday, 9 August
Clear. High 84°, low 47°.
Pressure29.88 inHg
Wind2.9 mph SE
Humidity18%
Visibility6.2 mi
Dew point35°
Mon, 1085° / 47°0
Morning51°feels 47°
Afternoon85°feels 82°
Evening77°feels 75°
Overnight52°feels 49°
85 °
Marion, Monday, 10 August
Clear. High 85°, low 47°.
Pressure29.85 inHg
Wind7.2 mph W
Humidity16%
Visibility6.2 mi
Dew point31°
Tue, 1188° / 53°0
Morning61°feels 59°
Afternoon88°feels 84°
Evening78°feels 77°
Overnight58°feels 55°
88 °
Marion, Tuesday, 11 August
Clear. High 88°, low 53°.
Pressure29.94 inHg
Wind2.5 mph S
Humidity20%
Visibility6.2 mi
Dew point37°
Wed, 1286° / 56°0
Morning61°feels 59°
Afternoon85°feels 82°
Evening76°feels 75°
Overnight60°feels 58°
86 °
Marion, Wednesday, 12 August
Overcast. High 86°, low 56°.
Pressure29.83 inHg
Wind1.5 mph S
Humidity21%
Visibility6.2 mi
Dew point38°
Thu, 1379° / 52°0.03
Morning58°feels 58°
Afternoon75°feels 75°
Evening76°feels 76°
Overnight60°feels 59°
79 °
Marion, Thursday, 13 August
Light rain. High 79°, low 52°.
Pressure29.85 inHg
Wind4.9 mph N
Humidity44%
Visibility—
Dew point48°
Fri, 1483° / 50°0.01
Morning57°feels 57°
Afternoon77°feels 76°
Evening77°feels 76°
Overnight60°feels 59°
83 °
Marion, Friday, 14 August
Light rain. High 83°, low 50°.
Pressure30.00 inHg
Wind5.1 mph NE
Humidity38%
Visibility—
Dew point45°
Sat, 1587° / 49°0
Morning57°feels 57°
Afternoon79°feels 78°
Evening81°feels 79°
Overnight63°feels 61°
87 °
Marion, Saturday, 15 August
Clear. High 87°, low 49°.
Pressure30.06 inHg
Wind5.2 mph W
Humidity32%
Visibility—
Dew point42°
Sun, 1689° / 57°0
Morning65°feels 62°
Afternoon85°feels 82°
Evening84°feels 81°
Overnight69°feels 67°
89 °
Marion, Sunday, 16 August
Partly cloudy. High 89°, low 57°.
Pressure29.97 inHg
Wind14.6 mph W
Humidity16%
Visibility—
Dew point31°
Mon, 1789° / 60°0
Morning68°feels 65°
Afternoon87°feels 84°
Evening84°feels 81°
Overnight68°feels 66°
89 °
Marion, Monday, 17 August
Clear. High 89°, low 60°.
Pressure29.91 inHg
Wind14.2 mph W
Humidity16%
Visibility—
Dew point32°
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 Marion, 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.