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°
Wed, Sep 2
Coldest night
6°
Tue, Sep 8
Days with precip
2 / 14
of 14 forecast days
Nicest day
Tue, Sep 8
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
33° 16°
68% precip chance
Sat 5 – Sun 6 Sep
31° 16°
17% precip chance
Sat 12 – Sun 13 Sep
26° 11°
typical range
Sat 19 – Sun 20 Sep
29° 11°
typical range
30 days — North Spearfish
14 forecast + 16 climatology
Wed · Today Sunny
30°15°1%⌄
Wind10 mph E
Gusts21 mph
UV index8 – High
Precip chance1%
Sunrise06:11
Sunset19:43
Thu · Tomorrow Mostly cloudy
34°18°4%⌄
Wind15 mph SE
Gusts27 mph
UV index7 – High
Precip chance4%
Sunrise06:12
Sunset19:41
Friday 28/8 Mostly cloudy
33°20°10%⌄
Wind12 mph SE
Gusts21 mph
UV index8 – Very high
Precip chance10%
Sunrise06:13
Sunset19:39
Saturday 29/8 Mostly cloudy
33°18°15.6 mm⌄
Wind28 mph W
Gusts30 mph
UV index7 – High
Precip chance68%
Sunrise06:14
Sunset19:38
Sunday 30/8 Mostly cloudy
33°16°1.8 mm⌄
Wind36 mph SW
Gusts37 mph
UV index7 – High
Precip chance57%
Sunrise06:16
Sunset19:36
Monday 31/8 Mostly cloudy
29°13°10%⌄
Wind13 mph SE
Gusts21 mph
UV index6 – High
Precip chance10%
Sunrise06:17
Sunset19:34
Tuesday 1/9 Mostly cloudy
34°20°0.3 mm⌄
Wind18 mph SW
Gusts19 mph
UV index8 – Very high
Precip chance36%
Sunrise06:18
Sunset19:32
Wednesday 2/9 Sunny
35°19°1%⌄
Wind12 mph SW
Gusts19 mph
UV index8 – Very high
Precip chance1%
Sunrise06:19
Sunset19:30
Thursday 3/9 Mostly cloudy
32°21°5%⌄
Wind17 mph SW
Gusts31 mph
UV index8 – Very high
Precip chance5%
Sunrise06:20
Sunset19:29
Friday 4/9 Mostly cloudy
34°20°5%⌄
Wind10 mph SE
Gusts14 mph
UV index8 – Very high
Precip chance5%
Sunrise06:21
Sunset19:27
Saturday 5/9 Mostly cloudy
31°21°7%⌄
Wind15 mph NW
Gusts25 mph
UV index7 – High
Precip chance7%
Sunrise06:23
Sunset19:25
Sunday 6/9 Mostly cloudy
23°16°17%⌄
Wind8 mph E
Gusts19 mph
UV index6 – High
Precip chance17%
Sunrise06:24
Sunset19:23
Monday 7/9 Sunny
30°13°1%⌄
Wind15 mph E
Gusts25 mph
UV index7 – High
Precip chance1%
Sunrise06:25
Sunset19:21
Tuesday 8/9 Sunny
19°6°7%⌄
Wind12 mph NW
Gusts23 mph
UV index5 – Moderate
Precip chance7%
Sunrise06:26
Sunset19:20
Wednesday 9/9 Rain (climatological)
27°13°3.6 mm⌄
Day≈24–30°
Night≈10–16°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
29°14°20%⌄
Day≈26–32°
Night≈11–17°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
28°14°20%⌄
Day≈25–31°
Night≈11–17°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Light rain (climatological)
26°13°2.0 mm⌄
Day≈23–29°
Night≈10–16°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
24°11°20%⌄
Day≈21–27°
Night≈8–14°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
23°11°20%⌄
Day≈20–26°
Night≈8–14°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Rain (climatological)
23°11°2.7 mm⌄
Day≈20–26°
Night≈8–14°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
27°13°20%⌄
Day≈24–30°
Night≈10–16°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
29°14°20%⌄
Day≈26–32°
Night≈11–17°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Rain (climatological)
28°14°4.4 mm⌄
Day≈25–31°
Night≈11–17°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
29°14°20%⌄
Day≈26–32°
Night≈11–17°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
24°11°20%⌄
Day≈21–27°
Night≈8–14°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Rain (climatological)
23°10°3.3 mm⌄
Day≈20–26°
Night≈7–13°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
24°11°20%⌄
Day≈21–27°
Night≈8–14°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
27°13°20%⌄
Day≈24–30°
Night≈10–16°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Rain (climatological)
27°13°4.3 mm⌄
Day≈24–30°
Night≈10–16°
Precip≈1.5 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.