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As of 06:55 MDT

Weather in Keystone, SD

48°Current weather

Keystone, Friday, 9 October, 06:55

Clear. Feels like 44°. High 80°, low 46°.

Pressure29.83 inHg
Wind11.5 mph SW
Humidity44%
Visibility6.2 mi
Dew point28°

10-day forecast for Keystone, SD: 29° to 80°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.

80°
Best day: Friday, October 9
49° · 1.68 in
Worst day: Thursday, October 15

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

Sat, 1078° / 54°0.02Light rain
MorningClear62°feels 59°
AfternoonMostly clear78°feels 77°
EveningMostly clear57°feels 55°
OvernightMostly clear61°feels 58°
78 °Light rain

Keystone, Saturday, 10 October

Light rain. High 78°, low 54°.

Pressure29.53 inHg
Wind13.4 mph W
Humidity19%
Visibility6.2 mi
Dew point33°
Sun, 1159° / 44°0.02Light rain
MorningOvercast49°feels 47°
AfternoonOvercast56°feels 55°
EveningLight rain46°feels 44°
OvernightOvercast55°feels 53°
59 °Light rain

Keystone, Sunday, 11 October

Light rain. High 59°, low 44°.

Pressure29.77 inHg
Wind6.6 mph NE
Humidity60%
Visibility6.2 mi
Dew point46°
Mon, 1264° / 42°0.03Light rain
MorningOvercast43°feels 41°
AfternoonPartly cloudy60°feels 58°
EveningOvercast47°feels 44°
OvernightLight rain44°feels 41°
64 °Light rain

Keystone, Monday, 12 October

Light rain. High 64°, low 42°.

Pressure29.77 inHg
Wind7.1 mph SE
Humidity82%
Visibility5.8 mi
Dew point46°
Tue, 1344° / 39°0.3Rain
MorningRain40°feels 38°
AfternoonRain42°feels 40°
EveningRain41°feels 39°
OvernightOvercast42°feels 40°
44 °Rain

Keystone, Tuesday, 13 October

Rain. High 44°, low 39°.

Pressure30.06 inHg
Wind6.5 mph N
Humidity97%
Visibility—
Dew point41°
Wed, 1448° / 39°0.18Light rain
MorningLight rain41°feels 41°
AfternoonLight rain47°feels 47°
EveningLight rain46°feels 46°
OvernightLight rain46°feels 46°
48 °Light rain

Keystone, Wednesday, 14 October

Light rain. High 48°, low 39°.

Pressure29.88 inHg
Wind5.4 mph E
Humidity74%
Visibility—
Dew point38°
Thu, 1549° / 32°1.68Heavy rain
MorningHeavy rain42°feels 32°
AfternoonHeavy rain41°feels 29°
EveningHeavy rain35°feels 22°
OvernightHeavy rain34°feels 22°
49 °Heavy rain

Keystone, Thursday, 15 October

Heavy rain. High 49°, low 32°.

Pressure29.94 inHg
Wind30.1 mph NW
Humidity67%
Visibility—
Dew point32°
Fri, 1644° / 29°0Clear
MorningClear32°feels 20°
AfternoonClear39°feels 30°
EveningClear35°feels 32°
OvernightClear31°feels 24°
44 °Clear

Keystone, Friday, 16 October

Clear. High 44°, low 29°.

Pressure30.36 inHg
Wind27.7 mph NW
Humidity26%
Visibility—
Dew point6°
Sat, 1765° / 32°0Overcast
MorningOvercast44°feels 39°
AfternoonOvercast63°feels 60°
EveningOvercast48°feels 46°
OvernightOvercast43°feels 38°
65 °Overcast

Keystone, Saturday, 17 October

Overcast. High 65°, low 32°.

Pressure30.06 inHg
Wind7.9 mph W
Humidity20%
Visibility—
Dew point20°
Sun, 1864° / 45°0Overcast
MorningOvercast51°feels 47°
AfternoonOvercast62°feels 59°
EveningOvercast50°feels 47°
OvernightOvercast47°feels 44°
64 °Overcast

Keystone, Sunday, 18 October

Overcast. High 64°, low 45°.

Pressure29.97 inHg
Wind7.3 mph E
Humidity24%
Visibility—
Dew point24°

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, SD 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.