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As of 16:05 MDT

Weather in Keystone, MT

81°Current weather

Keystone, Saturday, 8 August, 16:05

Partly cloudy. Feels like 79°. High 81°, low 46°.

Pressure29.80 inHg
Wind11.3 mph W
Humidity17%
Visibility6.2 mi
Dew point31°

10-day forecast for Keystone, MT: 44° to 88°, with precipitation expected on 0 days. The table below breaks each day into morning, afternoon, evening and overnight.

88°
Best day: Monday, August 17
74°
Worst day: Saturday, August 15

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

Sun, 0982° / 45°0Clear
MorningClear49°feels 49°
AfternoonClear76°feels 74°
EveningClear74°feels 72°
OvernightClear51°feels 47°
82 °Clear

Keystone, Sunday, 9 August

Clear. High 82°, low 45°.

Pressure29.85 inHg
Wind2.4 mph N
Humidity15%
Visibility6.2 mi
Dew point32°
Mon, 1082° / 44°0Clear
MorningClear58°feels 55°
AfternoonClear81°feels 79°
EveningClear73°feels 71°
OvernightOvercast49°feels 48°
82 °Clear

Keystone, Monday, 10 August

Clear. High 82°, low 44°.

Pressure29.85 inHg
Wind4.8 mph W
Humidity15%
Visibility6.2 mi
Dew point29°
Tue, 1185° / 48°0Clear
MorningClear56°feels 53°
AfternoonClear83°feels 81°
EveningClear75°feels 73°
OvernightClear52°feels 49°
85 °Clear

Keystone, Tuesday, 11 August

Clear. High 85°, low 48°.

Pressure29.94 inHg
Wind3 mph N
Humidity18%
Visibility6.2 mi
Dew point33°
Wed, 1285° / 50°0Partly cloudy
MorningOvercast57°feels 54°
AfternoonClear83°feels 81°
EveningPartly cloudy80°feels 78°
OvernightOvercast54°feels 51°
85 °Partly cloudy

Keystone, Wednesday, 12 August

Partly cloudy. High 85°, low 50°.

Pressure29.85 inHg
Wind3.9 mph N
Humidity20%
Visibility6.2 mi
Dew point36°
Thu, 1383° / 47°0Clear
MorningClear55°feels 55°
AfternoonClear76°feels 75°
EveningClear75°feels 73°
OvernightClear57°feels 54°
83 °Clear

Keystone, Thursday, 13 August

Clear. High 83°, low 47°.

Pressure29.83 inHg
Wind11.1 mph W
Humidity30%
Visibility—
Dew point38°
Fri, 1483° / 46°0Mostly clear
MorningMostly clear55°feels 54°
AfternoonMostly clear77°feels 75°
EveningMostly clear78°feels 76°
OvernightMostly clear59°feels 57°
83 °Mostly clear

Keystone, Friday, 14 August

Mostly clear. High 83°, low 46°.

Pressure29.91 inHg
Wind5.5 mph NW
Humidity15%
Visibility—
Dew point22°
Sat, 1574° / 52°0Overcast
MorningOvercast58°feels 55°
AfternoonOvercast72°feels 70°
EveningOvercast65°feels 63°
OvernightOvercast56°feels 54°
74 °Overcast

Keystone, Saturday, 15 August

Overcast. High 74°, low 52°.

Pressure29.94 inHg
Wind10.8 mph SW
Humidity21%
Visibility—
Dew point28°
Sun, 1682° / 47°0Clear
MorningClear56°feels 56°
AfternoonClear80°feels 79°
EveningClear78°feels 76°
OvernightClear58°feels 56°
82 °Clear

Keystone, Sunday, 16 August

Clear. High 82°, low 47°.

Pressure30.00 inHg
Wind11.8 mph W
Humidity24%
Visibility—
Dew point35°
Mon, 1788° / 51°0Mostly clear
MorningMostly clear60°feels 57°
AfternoonMostly clear82°feels 80°
EveningMostly clear83°feels 80°
OvernightMostly clear64°feels 62°
88 °Mostly clear

Keystone, Monday, 17 August

Mostly clear. High 88°, low 51°.

Pressure30.00 inHg
Wind8.7 mph W
Humidity20%
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 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.