Bismarck, ND 14-Day Forecast
North Dakota, United States 🇺🇸
64°
Sunny right now
Today: high 64°, low 50°
Updated 1 hour ago
Bismarck weather for the next 14 days
Wednesday, September 16
Sunny High 76° Low 49°Precipitation
17%
· 0.0 in
Max wind
16 mph
Humidity
56%
UV index
4 - Moderate
Sunrise / sunset
07:22 AM / 07:53 PM
Thursday, September 17
Overcast High 69° Low 46°Precipitation
36%
· 0.02 in
Max wind
13 mph
Humidity
69%
UV index
4 - Moderate
Sunrise / sunset
07:23 AM / 07:51 PM
Friday, September 18
Partly Cloudy High 69° Low 52°Precipitation
55%
· 0.04 in
Max wind
12 mph
Humidity
78%
UV index
4 - Moderate
Sunrise / sunset
07:24 AM / 07:49 PM
Saturday, September 19
Overcast High 65° Low 53°Precipitation
24%
· 0.0 in
Max wind
10 mph
Humidity
73%
UV index
4 - Moderate
Sunrise / sunset
07:26 AM / 07:47 PM
Sunday, September 20
Patchy rain nearby High 58° Low 53°Precipitation
71%
· 0.05 in
Max wind
8 mph
Humidity
82%
UV index
3 - Moderate
Sunrise / sunset
07:27 AM / 07:45 PM
Monday, September 21
Light rain shower High 52° Low 49°Precipitation
91%
· 0.33 in
Max wind
8 mph
Humidity
92%
UV index
3 - Moderate
Sunrise / sunset
07:28 AM / 07:43 PM
Tuesday, September 22
Overcast High 66° Low 50°Precipitation
15%
· 0.0 in
Max wind
9 mph
Humidity
75%
UV index
5 - Moderate
Sunrise / sunset
07:30 AM / 07:41 PM
Wednesday, September 23
Overcast High 60° Low 54°Precipitation
21%
· 0.0 in
Max wind
15 mph
Humidity
72%
UV index
4 - Moderate
Sunrise / sunset
07:31 AM / 07:39 PM
Thursday, September 24
Sunny High 73° Low 52°Precipitation
4%
· 0.0 in
Max wind
12 mph
Humidity
44%
UV index
6 - High
Sunrise / sunset
07:32 AM / 07:37 PM
Friday, September 25
Overcast High 63° Low 48°Precipitation
13%
· 0.0 in
Max wind
16 mph
Humidity
52%
UV index
3 - Moderate
Sunrise / sunset
07:34 AM / 07:35 PM
Saturday, September 26
Sunny High 57° Low 46°Precipitation
4%
· 0.0 in
Max wind
8 mph
Humidity
46%
UV index
4 - Moderate
Sunrise / sunset
07:35 AM / 07:33 PM
Sunday, September 27
Sunny High 63° Low 47°Precipitation
1%
· 0.0 in
Max wind
7 mph
Humidity
38%
UV index
5 - Moderate
Sunrise / sunset
07:36 AM / 07:31 PM
Monday, September 28
Overcast High 67° Low 48°Precipitation
9%
· 0.0 in
Max wind
11 mph
Humidity
54%
UV index
4 - Moderate
Sunrise / sunset
07:38 AM / 07:29 PM
Bismarck 14-day outlook: the story
The warmest day of Bismarck's 14-day outlook is Wednesday, September 16 with a high near 76°F (24°C); the coolest night comes Thursday, September 17, dipping to 46°F (8°C). Temperatures hold fairly steady from week to week. Highs over the next two weeks average 65°F (18°C), about 8°F (4°C) below the typical September high of 73°F (23°C).
Precipitation is most likely on Friday 18, Sunday 20, Monday 21; the wettest day looks like Monday, September 21 with about 0.33 in (8.5 mm) expected. For the weekend, expect Saturday 65°F (18°C) and overcast / Sunday 58°F (14°C) and patchy rain nearby.
For typical conditions month by month, see the Bismarck climate & average temperatures guide.
Bismarck forecast questions
Will it rain in Bismarck this week?
The forecast currently shows meaningful precipitation chances on 3 of the next 14 days, peaking around Monday, September 21.
What will be the warmest day in Bismarck over the next 14 days?
Wednesday, September 16, with a forecast high near 76°F (24°C).
How accurate is a 14-day forecast for Bismarck?
Days 1-3 are highly reliable, days 4-7 capture the overall pattern well, and days 8-14 indicate trends rather than exact figures - check back as the date approaches; this page refreshes throughout the day.
Average temperatures in Bismarck by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 24° | 8° | 4 | 0.5 in | 5.9 h/day | 78% |
| February | 27° | 8° | 4 | 0.6 in | 7.8 h/day | 69% |
| March | 40° | 20° | 6 | 0.9 in | 8.9 h/day | 68% |
| April | 51° | 31° | 8 | 1.9 in | 9.3 h/day | 62% |
| May | 67° | 45° | 10 | 2.6 in | 11.4 h/day | 61% |
| June | 78° | 57° | 8 | 2.7 in | 13.1 h/day | 60% |
| July | 83° | 63° | 8 | 2.1 in | 13.5 h/day | 62% |
| August | 81° | 60° | 6 | 2.4 in | 11.8 h/day | 63% |
| September | 73° | 53° | 7 | 2.0 in | 9.9 h/day | 63% |
| October | 56° | 38° | 5 | 1.5 in | 8.0 h/day | 64% |
| November | 40° | 24° | 4 | 0.8 in | 6.5 h/day | 70% |
| December | 27° | 12° | 6 | 1.0 in | 5.6 h/day | 75% |
14-day forecasts nearby