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As of 06:39 MDT

Weather in Keystone, MT

27°Current weather

Keystone, Sunday, 18 October, 06:39

Overcast. Feels like 27°. High 57°, low 27°.

Pressure30.15 inHg
Wind0.5 mph SW
Humidity90%
Visibility6.2 mi
Dew point25°

10-day forecast for Keystone, MT: 23° to 62°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.

62°
Best day: Wednesday, October 21
54° · 0.16 in
Worst day: Thursday, October 22

Tap any day below to see morning, afternoon, evening and overnight.

Mon, 1961° / 23°0Overcast
MorningOvercast24°feels 24°
AfternoonOvercast55°feels 51°
EveningOvercast47°feels 47°
OvernightOvercast27°feels 27°
61 °Overcast

Keystone, Monday, 19 October

Overcast. High 61°, low 23°.

Pressure29.91 inHg
Wind1.5 mph NE
Humidity52%
Visibility6.2 mi
Dew point38°
Tue, 2059° / 33°0Overcast
MorningOvercast33°feels 33°
AfternoonOvercast58°feels 55°
EveningOvercast46°feels 46°
OvernightPartly cloudy36°feels 36°
59 °Overcast

Keystone, Tuesday, 20 October

Overcast. High 59°, low 33°.

Pressure30.03 inHg
Wind1.2 mph NW
Humidity54%
Visibility6.2 mi
Dew point38°
Wed, 2162° / 34°0Overcast
MorningClear32°feels 32°
AfternoonPartly cloudy59°feels 57°
EveningPartly cloudy49°feels 49°
OvernightMostly clear37°feels 37°
62 °Overcast

Keystone, Wednesday, 21 October

Overcast. High 62°, low 34°.

Pressure30.00 inHg
Wind0.7 mph NE
Humidity51%
Visibility6.2 mi
Dew point38°
Thu, 2254° / 37°0.16Light rain
MorningLight rain41°feels 41°
AfternoonLight rain51°feels 49°
EveningLight rain48°feels 46°
OvernightOvercast39°feels 39°
54 °Light rain

Keystone, Thursday, 22 October

Light rain. High 54°, low 37°.

Pressure29.83 inHg
Wind5.1 mph W
Humidity69%
Visibility—
Dew point40°
Fri, 2343° / 31°0Partly cloudy
MorningPartly cloudy35°feels 34°
AfternoonPartly cloudy40°feels 35°
EveningPartly cloudy39°feels 36°
OvernightPartly cloudy31°feels 28°
43 °Partly cloudy

Keystone, Friday, 23 October

Partly cloudy. High 43°, low 31°.

Pressure30.06 inHg
Wind9.5 mph W
Humidity62%
Visibility—
Dew point27°
Sat, 2451° / 27°0Mostly clear
MorningMostly clear32°feels 32°
AfternoonMostly clear44°feels 44°
EveningMostly clear44°feels 43°
OvernightMostly clear35°feels 33°
51 °Mostly clear

Keystone, Saturday, 24 October

Mostly clear. High 51°, low 27°.

Pressure30.42 inHg
Wind3.6 mph SW
Humidity53%
Visibility—
Dew point26°
Sun, 2558° / 33°0Partly cloudy
MorningPartly cloudy39°feels 36°
AfternoonPartly cloudy53°feels 50°
EveningPartly cloudy47°feels 46°
OvernightPartly cloudy38°feels 35°
58 °Partly cloudy

Keystone, Sunday, 25 October

Partly cloudy. High 58°, low 33°.

Pressure30.12 inHg
Wind9.4 mph W
Humidity23%
Visibility—
Dew point14°
Mon, 2657° / 35°0Partly cloudy
MorningPartly cloudy40°feels 38°
AfternoonPartly cloudy51°feels 48°
EveningPartly cloudy47°feels 46°
OvernightPartly cloudy38°feels 36°
57 °Partly cloudy

Keystone, Monday, 26 October

Partly cloudy. High 57°, low 35°.

Pressure29.97 inHg
Wind4.1 mph N
Humidity30%
Visibility—
Dew point19°
Tue, 2750° / 30°0.1Snow
MorningSnow35°feels 34°
AfternoonSnow43°feels 42°
EveningSnow42°feels 39°
OvernightSnow33°feels 30°
50 °Snow

Keystone, Tuesday, 27 October

Snow. High 50°, low 30°.

Pressure30.00 inHg
Wind5 mph W
Humidity54%
Visibility—
Dew point26°

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 Keystone, 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.