10-day forecast for Sidney, MT: 29° to 59°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
59°
Best day: Thursday, November 5
53° · 0.46 in
Worst day: Monday, November 2
Tap any day below to see morning, afternoon, evening and overnight.
Wed, 2852° / 35°0
Morning37°feels 30°
Afternoon52°feels 49°
Evening38°feels 35°
Overnight38°feels 31°
52 °
Sidney, Wednesday, 28 October
Clear. High 52°, low 35°.
Pressure29.91 inHg
Wind15.2 mph W
Humidity53%
Visibility6.2 mi
Dew point33°
Thu, 2948° / 32°0
Morning32°feels 28°
Afternoon48°feels 44°
Evening37°feels 32°
Overnight33°feels 30°
48 °
Sidney, Thursday, 29 October
Mostly clear. High 48°, low 32°.
Pressure30.18 inHg
Wind8.7 mph NE
Humidity68%
Visibility6.2 mi
Dew point36°
Fri, 3045° / 29°0.06
Morning29°feels 22°
Afternoon46°feels 40°
Evening42°feels 36°
Overnight33°feels 26°
45 °
Sidney, Friday, 30 October
Light rain. High 45°, low 29°.
Pressure30.33 inHg
Wind9.9 mph E
Humidity67%
Visibility6.2 mi
Dew point29°
Sat, 3157° / 43°0
Morning48°feels 44°
Afternoon55°feels 54°
Evening54°feels 53°
Overnight43°feels 39°
57 °
Sidney, Saturday, 31 October
Overcast. High 57°, low 43°.
Pressure29.97 inHg
Wind10.6 mph SE
Humidity81%
Visibility—
Dew point48°
Sun, 0154° / 47°0
Morning49°feels 47°
Afternoon52°feels 51°
Evening52°feels 51°
Overnight50°feels 49°
54 °
Sidney, Sunday, 1 November
Overcast. High 54°, low 47°.
Pressure29.91 inHg
Wind9.1 mph NE
Humidity93%
Visibility—
Dew point49°
Mon, 0253° / 42°0.46
Morning52°feels 51°
Afternoon52°feels 49°
Evening42°feels 34°
Overnight44°feels 38°
53 °
Sidney, Monday, 2 November
Rain. High 53°, low 42°.
Pressure29.83 inHg
Wind20 mph NW
Humidity84%
Visibility—
Dew point49°
Tue, 0346° / 42°0.15
Morning43°feels 38°
Afternoon45°feels 41°
Evening46°feels 46°
Overnight45°feels 42°
46 °
Sidney, Tuesday, 3 November
Rain. High 46°, low 42°.
Pressure30.33 inHg
Wind10.4 mph NW
Humidity86%
Visibility—
Dew point40°
Wed, 0454° / 44°0
Morning46°feels 44°
Afternoon49°feels 48°
Evening49°feels 48°
Overnight46°feels 43°
54 °
Sidney, Wednesday, 4 November
Overcast. High 54°, low 44°.
Pressure30.18 inHg
Wind7.2 mph S
Humidity78%
Visibility—
Dew point42°
Thu, 0559° / 45°0
Morning48°feels 45°
Afternoon55°feels 54°
Evening52°feels 50°
Overnight47°feels 43°
59 °
Sidney, Thursday, 5 November
Partly cloudy. High 59°, low 45°.
Pressure30.00 inHg
Wind12.2 mph S
Humidity69%
Visibility—
Dew point44°
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 Sidney, 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.