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As of 21:30 MDT

Weather in Keystone, MT

35°Current weather

Keystone, Wednesday, 14 October, 21:30

Clear. Feels like 35°. High 50°, low 27°.

Pressure30.36 inHg
Wind1.6 mph SW
Humidity85%
Visibility6.2 mi
Dew point31°

10-day forecast for Keystone, MT: 25° to 65°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.

65°
Best day: Friday, October 16
35° · 0.13 in
Worst day: Friday, October 23

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

Thu, 1551° / 28°0Clear
MorningPartly cloudy28°feels 28°
AfternoonClear51°feels 48°
EveningClear40°feels 40°
OvernightClear32°feels 32°
51 °Clear

Keystone, Thursday, 15 October

Clear. High 51°, low 28°.

Pressure30.59 inHg
Wind2.3 mph NE
Humidity56%
Visibility6.2 mi
Dew point35°
Fri, 1665° / 31°0Overcast
MorningOvercast32°feels 32°
AfternoonOvercast62°feels 59°
EveningOvercast47°feels 47°
OvernightOvercast32°feels 32°
65 °Overcast

Keystone, Friday, 16 October

Overcast. High 65°, low 31°.

Pressure30.42 inHg
Wind1 mph E
Humidity41%
Visibility6.2 mi
Dew point31°
Sat, 1762° / 33°0Partly cloudy
MorningOvercast33°feels 33°
AfternoonOvercast61°feels 58°
EveningOvercast46°feels 46°
OvernightOvercast33°feels 33°
62 °Partly cloudy

Keystone, Saturday, 17 October

Partly cloudy. High 62°, low 33°.

Pressure30.03 inHg
Wind7 mph SW
Humidity31%
Visibility6.2 mi
Dew point32°
Sun, 1857° / 32°0Clear
MorningPartly cloudy33°feels 33°
AfternoonClear55°feels 52°
EveningPartly cloudy45°feels 45°
OvernightClear32°feels 32°
57 °Clear

Keystone, Sunday, 18 October

Clear. High 57°, low 32°.

Pressure30.12 inHg
Wind1 mph NE
Humidity57%
Visibility6.2 mi
Dew point38°
Mon, 1963° / 31°0Overcast
MorningOvercast38°feels 37°
AfternoonOvercast54°feels 52°
EveningOvercast55°feels 53°
OvernightOvercast42°feels 42°
63 °Overcast

Keystone, Monday, 19 October

Overcast. High 63°, low 31°.

Pressure29.88 inHg
Wind3.5 mph NE
Humidity49%
Visibility—
Dew point32°
Tue, 2054° / 36°0Overcast
MorningOvercast41°feels 40°
AfternoonOvercast50°feels 48°
EveningOvercast45°feels 45°
OvernightOvercast36°feels 36°
54 °Overcast

Keystone, Tuesday, 20 October

Overcast. High 54°, low 36°.

Pressure29.94 inHg
Wind1.9 mph N
Humidity52%
Visibility—
Dew point32°
Wed, 2155° / 29°0Mostly clear
MorningMostly clear35°feels 35°
AfternoonMostly clear49°feels 48°
EveningMostly clear46°feels 43°
OvernightMostly clear34°feels 30°
55 °Mostly clear

Keystone, Wednesday, 21 October

Mostly clear. High 55°, low 29°.

Pressure29.83 inHg
Wind5.9 mph W
Humidity42%
Visibility—
Dew point24°
Thu, 2240° / 27°0.03Snow
MorningSnow37°feels 33°
AfternoonSnow38°feels 33°
EveningSnow34°feels 30°
OvernightSnow29°feels 25°
40 °Snow

Keystone, Thursday, 22 October

Snow. High 40°, low 27°.

Pressure29.94 inHg
Wind9.5 mph W
Humidity65%
Visibility—
Dew point27°
Fri, 2335° / 25°0.13Snow
MorningSnow30°feels 26°
AfternoonSnow34°feels 31°
EveningSnow30°feels 30°
OvernightSnow28°feels 28°
35 °Snow

Keystone, Friday, 23 October

Snow. High 35°, low 25°.

Pressure30.27 inHg
Wind4 mph W
Humidity59%
Visibility—
Dew point21°

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.