North Spearfish · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
North Spearfish & neighbors — hit play
Every city on the map carries real forecast data from the same models as its city page, refreshed several times a day. The icon is the day's overall look; the number is the afternoon high.
Next 14 days at a glance
from the model forecast
Hottest day
35°
Sat, Aug 29
Coldest night
14°
Wed, Aug 26
Days with precip
3 / 14
of 14 forecast days
Nicest day
Tue, Aug 25
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 22 – Sun 23 Aug
34° 17°
36% precip chance
Sat 29 – Sun 30 Aug
35° 20°
3% precip chance
Sat 5 – Sun 6 Sep
29° 14°
typical range
Sat 12 – Sun 13 Sep
29° 15°
typical range
30 days — North Spearfish
14 forecast + 16 climatology
Thu · Today Sunny
34°21°0%⌄
Wind9 mph NE
Gusts19 mph
UV index8 – High
Precip chance0%
Sunrise06:04
Sunset19:53
Fri · Tomorrow Sunny
35°20°3%⌄
Wind17 mph E
Gusts25 mph
UV index8 – Very high
Precip chance3%
Sunrise06:05
Sunset19:51
Saturday 22/8 Sunny
32°17°0.2 mm⌄
Wind19 mph SE
Gusts29 mph
UV index8 – Very high
Precip chance17%
Sunrise06:06
Sunset19:50
Sunday 23/8 Sunny
34°18°0.9 mm⌄
Wind13 mph N
Gusts23 mph
UV index9 – Very high
Precip chance36%
Sunrise06:07
Sunset19:48
Monday 24/8 Sunny
29°18°2.0 mm⌄
Wind10 mph E
Gusts20 mph
UV index7 – High
Precip chance57%
Sunrise06:09
Sunset19:46
Tuesday 25/8 Sunny
31°18°2%⌄
Wind12 mph E
Gusts25 mph
UV index8 – Very high
Precip chance2%
Sunrise06:10
Sunset19:45
Wednesday 26/8 Mostly cloudy
33°14°0.1 mm⌄
Wind17 mph E
Gusts26 mph
UV index7 – High
Precip chance17%
Sunrise06:11
Sunset19:43
Thursday 27/8 Partly cloudy
33°21°0.3 mm⌄
Wind10 mph N
Gusts19 mph
UV index8 – Very high
Precip chance17%
Sunrise06:12
Sunset19:41
Friday 28/8 Sunny
32°19°0.8 mm⌄
Wind14 mph NW
Gusts19 mph
UV index8 – Very high
Precip chance36%
Sunrise06:13
Sunset19:39
Saturday 29/8 Sunny
35°20°3%⌄
Wind19 mph NW
Gusts28 mph
UV index9 – Very high
Precip chance3%
Sunrise06:14
Sunset19:38
Sunday 30/8 Mostly cloudy
35°20°3%⌄
Wind16 mph N
Gusts21 mph
UV index8 – Very high
Precip chance3%
Sunrise06:16
Sunset19:36
Monday 31/8 Showers
27°15°0.3 mm⌄
Wind15 mph SE
Gusts20 mph
UV index6 – High
Precip chance36%
Sunrise06:17
Sunset19:34
Tuesday 1/9 Showers
26°14°5.7 mm⌄
Wind15 mph E
Gusts26 mph
UV index6 – High
Precip chance70%
Sunrise06:18
Sunset19:32
Wednesday 2/9 Showers
19°15°1.4 mm⌄
Wind20 mph SE
Gusts33 mph
UV index5 – Moderate
Precip chance70%
Sunrise06:19
Sunset19:30
Thursday 3/9 Rain (climatological)
27°14°2.3 mm⌄
Day≈24–30°
Night≈11–17°
Precip≈1.0 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 4/9 Partly cloudy (climatological)
29°15°20%⌄
Day≈26–32°
Night≈12–18°
Precip≈1.0 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 5/9 Partly cloudy (climatological)
29°15°20%⌄
Day≈26–32°
Night≈12–18°
Precip≈1.0 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 6/9 Light rain (climatological)
26°14°1.3 mm⌄
Day≈23–29°
Night≈11–17°
Precip≈1.0 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 7/9 Partly cloudy (climatological)
24°12°20%⌄
Day≈21–27°
Night≈9–15°
Precip≈1.0 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Partly cloudy (climatological)
23°12°20%⌄
Day≈20–26°
Night≈9–15°
Precip≈1.0 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Light rain (climatological)
24°12°1.8 mm⌄
Day≈21–27°
Night≈9–15°
Precip≈1.0 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
27°14°20%⌄
Day≈24–30°
Night≈11–17°
Precip≈1.0 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
29°15°20%⌄
Day≈26–32°
Night≈12–18°
Precip≈1.0 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Rain (climatological)
28°15°2.8 mm⌄
Day≈25–31°
Night≈12–18°
Precip≈1.0 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
29°15°20%⌄
Day≈26–32°
Night≈12–18°
Precip≈1.0 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
25°13°20%⌄
Day≈22–28°
Night≈10–16°
Precip≈1.0 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Rain (climatological)
23°11°2.1 mm⌄
Day≈20–26°
Night≈8–14°
Precip≈1.0 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
24°12°20%⌄
Day≈21–27°
Night≈9–15°
Precip≈1.0 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
27°14°20%⌄
Day≈24–30°
Night≈11–17°
Precip≈1.0 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Rain (climatological)
27°14°2.8 mm⌄
Day≈24–30°
Night≈11–17°
Precip≈1.0 in / September
(climatological)Typical range for these dates · 1991–2020
How does a 30-day outlook work?
The first 14 days are a live model forecast. The back half of the month shows the typical range for those dates — useful for planning, not a literal prediction.
First 14 days: a real forecast, blended from NBM, ECMWF and GFS runs. Trust it most inside three days; by the second week treat it as a lean, not a promise.
Rest of the month: past day 14 we stop pretending to forecast and switch to the climate corridor — the range those dates have produced over three decades computed directly for North Spearfish, with mild week-to-week wiggle.
Good question for this page: "Is late August usually humid in Chicago?" Bad question: "Do I need an umbrella on the 29th?" — three weeks out no one knows, and that's the honest answer.