10-day forecast for Summit Valley, MT: 25° to 53°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.
53°
Best day: Friday, October 30
49° · 1.33 in
Worst day: Friday, October 23
Tap any day below to see morning, afternoon, evening and overnight.
Sat, 2444° / 26°0
Morning26°feels 26°
Afternoon41°feels 41°
Evening35°feels 35°
Overnight37°feels 37°
44 °
Summit Valley, Saturday, 24 October
Clear. High 44°, low 26°.
Pressure30.42 inHg
Wind1.8 mph NE
Humidity94%
Visibility1.1 mi
Dew point26°
Sun, 2540° / 25°0
Morning25°feels 25°
Afternoon39°feels 39°
Evening30°feels 26°
Overnight30°feels 30°
40 °
Summit Valley, Sunday, 25 October
Partly cloudy. High 40°, low 25°.
Pressure30.36 inHg
Wind3 mph E
Humidity80%
Visibility6.2 mi
Dew point25°
Mon, 2644° / 27°0
Morning27°feels 27°
Afternoon42°feels 42°
Evening35°feels 35°
Overnight28°feels 28°
44 °
Summit Valley, Monday, 26 October
Overcast. High 44°, low 27°.
Pressure30.15 inHg
Wind0.8 mph NE
Humidity74%
Visibility6.2 mi
Dew point27°
Tue, 2747° / 32°0.3
Morning35°feels 30°
Afternoon46°feels 40°
Evening40°feels 37°
Overnight34°feels 31°
47 °
Summit Valley, Tuesday, 27 October
Rain. High 47°, low 32°.
Pressure30.09 inHg
Wind8.4 mph W
Humidity63%
Visibility0.9 mi
Dew point29°
Wed, 2848° / 32°0
Morning36°feels 36°
Afternoon42°feels 42°
Evening44°feels 44°
Overnight41°feels 41°
48 °
Summit Valley, Wednesday, 28 October
Overcast. High 48°, low 32°.
Pressure29.97 inHg
Wind3.4 mph N
Humidity63%
Visibility—
Dew point29°
Thu, 2949° / 36°0
Morning39°feels 38°
Afternoon43°feels 42°
Evening40°feels 40°
Overnight38°feels 34°
49 °
Summit Valley, Thursday, 29 October
Partly cloudy. High 49°, low 36°.
Pressure29.94 inHg
Wind5.7 mph SW
Humidity59%
Visibility—
Dew point29°
Fri, 3053° / 34°0
Morning38°feels 36°
Afternoon47°feels 46°
Evening44°feels 41°
Overnight40°feels 37°
53 °
Summit Valley, Friday, 30 October
Clear. High 53°, low 34°.
Pressure29.83 inHg
Wind5.6 mph S
Humidity54%
Visibility—
Dew point30°
Sat, 3152° / 35°0
Morning38°feels 38°
Afternoon45°feels 45°
Evening43°feels 43°
Overnight40°feels 40°
52 °
Summit Valley, Saturday, 31 October
Overcast. High 52°, low 35°.
Pressure29.91 inHg
Wind3.9 mph SW
Humidity55%
Visibility—
Dew point29°
Sun, 0149° / 36°0
Morning39°feels 39°
Afternoon45°feels 45°
Evening42°feels 42°
Overnight36°feels 33°
49 °
Summit Valley, Sunday, 1 November
Overcast. High 49°, low 36°.
Pressure29.97 inHg
Wind4.7 mph W
Humidity65%
Visibility—
Dew point33°
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 Summit Valley, 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.