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As of 03:06 MDT

Weather in Keystone, SD

36°Current weather

Keystone, Tuesday, 13 October, 03:06

Rain. Feels like 36°. High 43°, low 36°.

Pressure30.00 inHg
Wind2.3 mph SE
Humidity91%
Visibility1.9 mi
Dew point34°

10-day forecast for Keystone, SD: 26° to 74°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.

74°
Best day: Saturday, October 17
43° · 0.4 in
Worst day: Tuesday, October 13

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

Wed, 1446° / 38°0.41Rain
MorningOvercast40°feels 40°
AfternoonOvercast46°feels 42°
EveningLight rain42°feels 42°
OvernightOvercast41°feels 38°
46 °Rain

Keystone, Wednesday, 14 October

Rain. High 46°, low 38°.

Pressure30.18 inHg
Wind3.9 mph SE
Humidity67%
Visibility6.2 mi
Dew point37°
Thu, 1552° / 36°0.12Rain
MorningOvercast43°feels 36°
AfternoonClear52°feels 49°
EveningClear42°feels 35°
OvernightLight rain43°feels 38°
52 °Rain

Keystone, Thursday, 15 October

Rain. High 52°, low 36°.

Pressure30.42 inHg
Wind17.1 mph N
Humidity41%
Visibility6.2 mi
Dew point18°
Fri, 1661° / 26°0Clear
MorningClear30°feels 30°
AfternoonClear58°feels 55°
EveningClear50°feels 45°
OvernightClear31°feels 23°
61 °Clear

Keystone, Friday, 16 October

Clear. High 61°, low 26°.

Pressure30.56 inHg
Wind6.6 mph SE
Humidity39%
Visibility6.2 mi
Dew point19°
Sat, 1774° / 52°0Partly cloudy
MorningPartly cloudy59°feels 56°
AfternoonPartly cloudy69°feels 67°
EveningPartly cloudy57°feels 54°
OvernightClear54°feels 51°
74 °Partly cloudy

Keystone, Saturday, 17 October

Partly cloudy. High 74°, low 52°.

Pressure29.94 inHg
Wind15 mph W
Humidity22%
Visibility—
Dew point29°
Sun, 1861° / 46°0Overcast
MorningOvercast53°feels 49°
AfternoonOvercast59°feels 56°
EveningOvercast50°feels 47°
OvernightOvercast46°feels 43°
61 °Overcast

Keystone, Sunday, 18 October

Overcast. High 61°, low 46°.

Pressure30.00 inHg
Wind12.1 mph W
Humidity35%
Visibility—
Dew point31°
Mon, 1968° / 42°0Clear
MorningClear49°feels 45°
AfternoonClear63°feels 60°
EveningClear58°feels 56°
OvernightClear52°feels 49°
68 °Clear

Keystone, Monday, 19 October

Clear. High 68°, low 42°.

Pressure29.88 inHg
Wind15.9 mph S
Humidity30%
Visibility—
Dew point29°
Tue, 2071° / 50°0Mostly clear
MorningMostly clear56°feels 53°
AfternoonMostly clear69°feels 67°
EveningMostly clear58°feels 56°
OvernightMostly clear53°feels 51°
71 °Mostly clear

Keystone, Tuesday, 20 October

Mostly clear. High 71°, low 50°.

Pressure29.65 inHg
Wind9.6 mph SW
Humidity21%
Visibility—
Dew point27°
Wed, 2157° / 46°0.01Light rain
MorningLight rain50°feels 48°
AfternoonLight rain56°feels 53°
EveningLight rain47°feels 43°
OvernightLight rain46°feels 46°
57 °Light rain

Keystone, Wednesday, 21 October

Light rain. High 57°, low 46°.

Pressure29.68 inHg
Wind9.1 mph NW
Humidity52%
Visibility—
Dew point38°
Thu, 2243° / 38°0.21Rain
MorningRain40°feels 40°
AfternoonRain40°feels 40°
EveningRain40°feels 36°
OvernightRain39°feels 35°
43 °Rain

Keystone, Thursday, 22 October

Rain. High 43°, low 38°.

Pressure29.83 inHg
Wind8.3 mph NW
Humidity84%
Visibility—
Dew point36°

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.