Grand Forks · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Grand Forks & 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
32°
Sat, Sep 5
Coldest night
12°
Thu, Sep 10
Days with precip
3 / 14
of 14 forecast days
Nicest day
Thu, Sep 10
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
32° 19°
80% precip chance
Sat 12 – Sun 13 Sep
28° 19°
18% precip chance
Sat 19 – Sun 20 Sep
30° 18°
typical range
Sat 26 – Sun 27 Sep
30° 19°
typical range
30 days — Grand Forks
14 forecast + 16 climatology
Fri · Today Fog
22°16°24%⌄
Wind10 mph NE
Gusts21 mph
UV index6 – High
Precip chance24%
Sunrise06:50
Sunset20:03
Sat · Tomorrow Sunny
32°19°0.2 mm⌄
Wind12 mph SE
Gusts26 mph
UV index6 – High
Precip chance17%
Sunrise06:51
Sunset20:01
Sunday 6/9 Sunny
31°20°22.4 mm⌄
Wind21 mph SE
Gusts35 mph
UV index6 – High
Precip chance80%
Sunrise06:53
Sunset19:59
Monday 7/9 Mostly cloudy
28°19°1.2 mm⌄
Wind20 mph SE
Gusts41 mph
UV index3 – Moderate
Precip chance69%
Sunrise06:54
Sunset19:57
Tuesday 8/9 Sunny
29°15°0.1 mm⌄
Wind22 mph W
Gusts42 mph
UV index5 – Moderate
Precip chance17%
Sunrise06:55
Sunset19:55
Wednesday 9/9 Mostly cloudy
18°12°12%⌄
Wind19 mph W
Gusts32 mph
UV index5 – Moderate
Precip chance12%
Sunrise06:57
Sunset19:53
Thursday 10/9 Mostly cloudy
22°12°16%⌄
Wind11 mph SE
Gusts27 mph
UV index6 – High
Precip chance16%
Sunrise06:58
Sunset19:51
Friday 11/9 Mostly cloudy
25°16°0.3 mm⌄
Wind17 mph S
Gusts29 mph
UV index6 – High
Precip chance39%
Sunrise07:00
Sunset19:49
Saturday 12/9 Mostly cloudy
26°21°18%⌄
Wind8 mph SE
Gusts20 mph
UV index6 – High
Precip chance18%
Sunrise07:01
Sunset19:47
Sunday 13/9 Sunny
28°19°6%⌄
Wind8 mph E
Gusts13 mph
UV index7 – High
Precip chance6%
Sunrise07:02
Sunset19:45
Monday 14/9 Mostly cloudy
28°21°0.3 mm⌄
Wind13 mph SE
Gusts30 mph
UV index6 – High
Precip chance32%
Sunrise07:04
Sunset19:43
Tuesday 15/9 Sunny
30°21°4%⌄
Wind15 mph W
Gusts21 mph
UV index7 – High
Precip chance4%
Sunrise07:05
Sunset19:41
Wednesday 16/9 Mostly cloudy
31°22°5%⌄
Wind10 mph E
Gusts19 mph
UV index8 – Very high
Precip chance5%
Sunrise07:06
Sunset19:39
Thursday 17/9 Showers
30°20°1.5 mm⌄
Wind14 mph W
Gusts23 mph
UV index7 – High
Precip chance57%
Sunrise07:08
Sunset19:37
Friday 18/9 Rain (climatological)
29°19°5.9 mm⌄
Day≈26–32°
Night≈16–22°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
28°18°20%⌄
Day≈25–31°
Night≈15–21°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
30°20°20%⌄
Day≈27–33°
Night≈17–23°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Rain (climatological)
27°18°3.6 mm⌄
Day≈24–30°
Night≈15–21°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
25°16°20%⌄
Day≈22–28°
Night≈13–19°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
25°17°20%⌄
Day≈22–28°
Night≈14–20°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Rain (climatological)
25°16°2.8 mm⌄
Day≈22–28°
Night≈13–19°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
27°18°20%⌄
Day≈24–30°
Night≈15–21°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Partly cloudy (climatological)
29°19°20%⌄
Day≈26–32°
Night≈16–22°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Rain (climatological)
30°20°6.3 mm⌄
Day≈27–33°
Night≈17–23°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Partly cloudy (climatological)
30°19°20%⌄
Day≈27–33°
Night≈16–22°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Partly cloudy (climatological)
26°17°20%⌄
Day≈23–29°
Night≈14–20°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 30/9 Rain (climatological)
23°16°5.9 mm⌄
Day≈20–26°
Night≈13–19°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 1/10 Partly cloudy (climatological)
16°8°20%⌄
Day≈13–19°
Night≈5–11°
Precip≈2.2 in / October
(climatological)Typical range for these dates · 1991–2020
Friday 2/10 Partly cloudy (climatological)
19°10°20%⌄
Day≈16–22°
Night≈7–13°
Precip≈2.2 in / October
(climatological)Typical range for these dates · 1991–2020
Saturday 3/10 Rain (climatological)
20°11°7.2 mm⌄
Day≈17–23°
Night≈8–14°
Precip≈2.2 in / October
(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 Grand Forks, 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.