10-day forecast for Keystone, CO: 1° to 62°, with precipitation expected on 5 days. The table below breaks each day into morning, afternoon, evening and overnight.
62°
Best day: Sunday, October 18
35° · 1.15 in
Worst day: Friday, October 23
Tap any day below to see morning, afternoon, evening and overnight.
Fri, 1647° / 22°0
Morning26°feels 26°
Afternoon46°feels 46°
Evening41°feels 41°
Overnight24°feels 24°
47 °
Keystone, Friday, 16 October
Clear. High 47°, low 22°.
Pressure30.53 inHg
Wind0.9 mph SW
Humidity37%
Visibility6.2 mi
Dew point-1°
Sat, 1761° / 36°0
Morning38°feels 38°
Afternoon61°feels 59°
Evening45°feels 45°
Overnight38°feels 38°
61 °
Keystone, Saturday, 17 October
Clear. High 61°, low 36°.
Pressure30.36 inHg
Wind3.3 mph W
Humidity40%
Visibility6.2 mi
Dew point10°
Sun, 1862° / 36°0
Morning38°feels 38°
Afternoon61°feels 59°
Evening46°feels 45°
Overnight37°feels 37°
62 °
Keystone, Sunday, 18 October
Light rain. High 62°, low 36°.
Pressure30.15 inHg
Wind2.4 mph SW
Humidity36%
Visibility6.2 mi
Dew point7°
Mon, 1955° / 40°0.04
Morning44°feels 44°
Afternoon54°feels 53°
Evening47°feels 47°
Overnight43°feels 43°
55 °
Keystone, Monday, 19 October
Light rain. High 55°, low 40°.
Pressure30.15 inHg
Wind6.4 mph SW
Humidity58%
Visibility—
Dew point39°
Tue, 2055° / 39°0.01
Morning42°feels 40°
Afternoon49°feels 49°
Evening48°feels 48°
Overnight41°feels 38°
55 °
Keystone, Tuesday, 20 October
Light rain. High 55°, low 39°.
Pressure30.15 inHg
Wind5.1 mph SW
Humidity72%
Visibility—
Dew point39°
Wed, 2156° / 36°0
Morning41°feels 40°
Afternoon52°feels 49°
Evening46°feels 42°
Overnight39°feels 35°
56 °
Keystone, Wednesday, 21 October
Clear. High 56°, low 36°.
Pressure29.91 inHg
Wind7.6 mph S
Humidity43%
Visibility—
Dew point29°
Thu, 2253° / 37°0.07
Morning41°feels 37°
Afternoon51°feels 48°
Evening44°feels 42°
Overnight38°feels 37°
53 °
Keystone, Thursday, 22 October
Snow. High 53°, low 37°.
Pressure29.74 inHg
Wind10.6 mph S
Humidity33%
Visibility—
Dew point22°
Fri, 2335° / 25°1.15
Morning30°feels 20°
Afternoon32°feels 22°
Evening28°feels 20°
Overnight26°feels 16°
35 °
Keystone, Friday, 23 October
Snow. High 35°, low 25°.
Pressure29.77 inHg
Wind13.8 mph NW
Humidity90%
Visibility—
Dew point29°
Sat, 2425° / 1°0.09
Morning10°feels 3°
Afternoon23°feels 14°
Evening12°feels 6°
Overnight2°feels 1°
25 °
Keystone, Saturday, 24 October
Light snow. High 25°, low 1°.
Pressure30.39 inHg
Wind8.9 mph NW
Humidity78%
Visibility—
Dew point16°
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, CO 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.