Severe Thunderstorm Warning — McLean County, ND, Mercer County, ND, Sheridan County, ND 6:00 PM Heat Advisory — Williams, ND, Mountrail, ND, McKenzie, ND, Dunn, ND, Mercer, ND, Oliver, ND, Golden Valley, ND, Billings, ND, Stark, ND, Burleigh, ND, Hettinger, ND, Grant, ND, Emmons, ND, Western McLean, ND, Eastern McLean, ND, Western Morton, ND, Eastern Morton, ND, Western Sioux, ND, Eastern Sioux, ND, McHenry, ND, Pierce, ND, Sheridan, ND, Wells, ND, Foster, ND, Kidder, ND, Stutsman, ND, Adams, ND, Logan, ND, La Moure, ND, McIntosh, ND, Dickey, ND, Central and Southern Ward/Minot Area, ND 8:00 PM

Mercer County, North Dakota, United States

Last updated: 5:17 PM CDT  ·  Refresh
36°C
Feels like 35°
Mostly Cloudy
▲ 38°  /  ▼ 15°
Wind
15 mph SSW
Humidity
27%
Dew Point
13°
Pressure
27.69 inHg
Visibility
10 mi
UV Index
5.3
Cloud Cover
71%
Sunrise
6:22 AM
Sunset
9:24 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Mercer County is currently mostly cloudy at 36°C. Precipitation is likely — peak probability 55% around 6 PM. Atmospheric instability is elevated (CAPE up to 1973 J/kg) — isolated convective development possible. Sunrise: 6:22AM · Sunset: 9:24PM.

Alerts

Severe Thunderstorm Warning
McLean County, ND, Mercer County, ND, Sheridan County, ND
Expires 6:00 PM
Heat Advisory
Williams, ND, Mountrail, ND, McKenzie, ND, Dunn, ND, Mercer, ND, Oliver, ND, Golden Valley, ND, Billings, ND, Stark, ND, Burleigh, ND, Hettinger, ND, Grant, ND, Emmons, ND, Western McLean, ND, Eastern McLean, ND, Western Morton, ND, Eastern Morton, ND, Western Sioux, ND, Eastern Sioux, ND, McHenry, ND, Pierce, ND, Sheridan, ND, Wells, ND, Foster, ND, Kidder, ND, Stutsman, ND, Adams, ND, Logan, ND, La Moure, ND, McIntosh, ND, Dickey, ND, Central and Southern Ward/Minot Area, ND
Expires 8:00 PM
86 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
36°
41%
6 PM
33°
54%
7 PM
32°
45%
8 PM
31°
34%
9 PM
29°
36%
10 PM
25°
38%
11 PM
24°
37%
12 AM
23°
42%
1 AM
22°
47%
2 AM
20°
43%
3 AM
18°
31%
4 AM
18°
33%
5 AM
18°
25%
6 AM
17°
23%
7 AM
17°
34%
8 AM
18°
34%
9 AM
20°
34%
10 AM
23°
34%
11 AM
24°
34%
12 PM
26°
35%
1 PM
27°
40%
2 PM
28°
40%
3 PM
29°
44%
4 PM
29°
44%
7-Day Forecast
Today
38° 15°
Mostly Cloudy with a 41% chance of rain.
Thu
33° 17°
Mostly Cloudy with a 43% chance of rain.
Fri
33° 13°
Clear.
Sat
36° 16°
Clear with a 38% chance of rain.
Sun
40° 20°
Mostly Clear with a 43% chance of rain.
Mon
31° 15°
Clear with a 46% chance of rain.
Tue
26° 8°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 36° Mostly Cloudy 41% 15 mph SSW 27%
6 PM 33° Mostly Cloudy 54% 13 mph SW 39%
7 PM 32° Overcast 45% 10 mph SSW 45%
8 PM 31° Overcast 34% 7 mph S 44%
9 PM 29° Overcast 36% 8 mph SSE 45%
10 PM 25° Overcast 38% 9 mph SSE 48%
11 PM 24° Overcast 37% 7 mph S 54%
12 AM 23° Overcast 42% 6 mph SSE 60%
1 AM 22° Mostly Cloudy 47% 6 mph SSE 66%
2 AM 20° Mostly Cloudy 43% 4 mph SE 69%
3 AM 18° Mostly Cloudy 31% 3 mph SE 74%
4 AM 18° Mostly Cloudy 33% 5 mph SE 78%
5 AM 18° Mostly Cloudy 25% 5 mph S 78%
6 AM 17° Overcast 23% 4 mph SSW 78%
7 AM 17° Overcast 34% 3 mph S 77%
8 AM 18° Overcast 34% 3 mph SE 75%
9 AM 20° Overcast 34% 3 mph SE 72%
10 AM 23° Overcast 34% 5 mph NNE 70%
11 AM 24° Overcast 34% 4 mph NNE 66%
12 PM 26° Mostly Cloudy 35% 5 mph NE 62%
1 PM 27° Mostly Cloudy 40% 6 mph NNE 59%
2 PM 28° Mostly Cloudy 40% 6 mph NNE 55%
3 PM 29° Mostly Cloudy 44% 7 mph NNE 52%
4 PM 29° Mostly Cloudy 44% 8 mph NNE 49%
15-Day Forecast
Today
7/29
Mostly Cloudy
41%
15°
38°
Thu
7/30
Mostly Cloudy
43%
17°
33°
Fri
7/31
Clear
14%
13°
33°
Sat
8/1
Clear
38%
16°
36°
Sun
8/2
Mostly Clear
43%
20°
40°
Mon
8/3
Clear
46%
15°
31°
Tue
8/4
Clear
17%
8°
26°
Wed
8/5
Clear
18%
8°
27°
Thu
8/6
Partly Cloudy
34%
12°
30°
Fri
8/7
Partly Cloudy
39%
14°
32°
Sat
8/8
Drizzle
60%
9°
31°
Sun
8/9
Clear
60%
16°
29°
Mon
8/10
Drizzle
60%
16°
31°
Tue
8/11
Clear
25%
17°
32°
Wed
8/12
Drizzle
60%
18°
33°
86
Moderate
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
86 AQI 27.8 µg/m³
O3
Ground-level ozone
58 AQI 58 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 86 Moderate 58 86
Fri 89 Moderate 48 89
Sat 82 Moderate 44 82
About the Air Quality Index
0–50 Good
51–100 Moderate
101–150 Unhealthy for Sensitive Groups
151–200 Unhealthy
201–300 Very Unhealthy
301–500 Hazardous

The U.S. AQI runs 0–500. The overall value equals the highest individual pollutant sub-index, and the dominant pollutant is the one driving it. PM2.5 (fine particles) is reported in µg/m³ and ozone (O3) in ppb. Forecast source: NWS NAQFC.

1000850700500400300250200150100 -40-30-20-10010203040 0.41247101624 LCLLFCEL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Wed Jul 29, 21:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 80 90 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE973 J/kg
MLCAPE633 J/kg
MUCAPE973 J/kg
SBCIN-85 J/kg
MLCIN0 J/kg
Lifted Index-3.8
Kinematics
0–6 km Shear27 kt
0–1 km Shear8 kt
Eff. Shear24 kt
0–1 km SRH34
0–3 km SRH22
Eff. SRH22
Storm Motion229° @ 28 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.3
K-Index37.1
Thermo & Levels
PWAT1.34 in
0–3 km LR9.2 °C/km
700–500 LR7.5 °C/km
Total Totals53.4
LCL676 hPa
LFC651 hPa
EL228 hPa
Freezing Lvl13,091 ft