10-day forecast for Boulder, ID: 9° to 52°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
52°
Best day: Friday, October 16
31° · 0.69 in
Worst day: Wednesday, October 21
Tap any day below to see morning, afternoon, evening and overnight.
Fri, 1652° / 20°0
Morning23°feels 23°
Afternoon50°feels 49°
Evening39°feels 39°
Overnight26°feels 26°
52 °
Boulder, Friday, 16 October
Overcast. High 52°, low 20°.
Pressure30.50 inHg
Wind3.6 mph S
Humidity40%
Visibility6.2 mi
Dew point5°
Sat, 1749° / 29°0
Morning30°feels 27°
Afternoon49°feels 45°
Evening33°feels 33°
Overnight29°feels 29°
49 °
Boulder, Saturday, 17 October
Overcast. High 49°, low 29°.
Pressure30.27 inHg
Wind6.2 mph SW
Humidity47%
Visibility6.2 mi
Dew point20°
Sun, 1847° / 31°0
Morning31°feels 31°
Afternoon46°feels 43°
Evening34°feels 34°
Overnight32°feels 32°
47 °
Boulder, Sunday, 18 October
Partly cloudy. High 47°, low 31°.
Pressure30.12 inHg
Wind5.4 mph S
Humidity53%
Visibility6.2 mi
Dew point25°
Mon, 1946° / 28°0
Morning34°feels 30°
Afternoon43°feels 39°
Evening39°feels 35°
Overnight28°feels 25°
46 °
Boulder, Monday, 19 October
Partly cloudy. High 46°, low 28°.
Pressure30.00 inHg
Wind9 mph S
Humidity54%
Visibility—
Dew point26°
Tue, 2044° / 30°0.55
Morning34°feels 33°
Afternoon43°feels 39°
Evening35°feels 32°
Overnight30°feels 25°
44 °
Boulder, Tuesday, 20 October
Snow. High 44°, low 30°.
Pressure29.91 inHg
Wind6.6 mph SE
Humidity56%
Visibility—
Dew point27°
Wed, 2131° / 28°0.69
Morning31°feels 28°
Afternoon30°feels 27°
Evening30°feels 30°
Overnight29°feels 29°
31 °
Boulder, Wednesday, 21 October
Snow. High 31°, low 28°.
Pressure29.83 inHg
Wind5.5 mph E
Humidity100%
Visibility—
Dew point30°
Thu, 2233° / 21°0.05
Morning24°feels 23°
Afternoon31°feels 27°
Evening28°feels 21°
Overnight22°feels 16°
33 °
Boulder, Thursday, 22 October
Light snow. High 33°, low 21°.
Pressure29.85 inHg
Wind5.7 mph NW
Humidity83%
Visibility—
Dew point25°
Fri, 2326° / 12°0.07
Morning19°feels 10°
Afternoon22°feels 10°
Evening18°feels 8°
Overnight13°feels 5°
26 °
Boulder, Friday, 23 October
Light snow. High 26°, low 12°.
Pressure30.12 inHg
Wind11.4 mph NW
Humidity69%
Visibility—
Dew point13°
Sat, 2430° / 9°0
Morning14°feels 9°
Afternoon25°feels 25°
Evening23°feels 23°
Overnight14°feels 12°
30 °
Boulder, Saturday, 24 October
Overcast. High 30°, low 9°.
Pressure30.53 inHg
Wind5.1 mph NW
Humidity42%
Visibility—
Dew point4°
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 Boulder, ID 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.