Heat Advisory — Western Roosevelt, MT, McCone, MT, Richland, MT, Dawson, MT, Prairie, MT, Wibaux, MT, Eastern Roosevelt, MT 8:00 PM

Prairie County, Montana, United States

Last updated: 5:17 PM CDT  ·  Refresh
35°C
Feels like 34°
Partly Cloudy
▲ 38°  /  ▼ 18°
Wind
9 mph SSE
Humidity
26%
Dew Point
15°
Pressure
27.33 inHg
Visibility
10 mi
UV Index
7.0
Cloud Cover
43%
Sunrise
5:37 AM
Sunset
8:36 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Prairie County is currently partly cloudy at 35°C. Precipitation is likely — peak probability 60% around 8 AM. Atmospheric instability is elevated (CAPE up to 1334 J/kg) — isolated convective development possible. Sunrise: 5:37AM · Sunset: 8:36PM.

Alerts

Heat Advisory
Western Roosevelt, MT, McCone, MT, Richland, MT, Dawson, MT, Prairie, MT, Wibaux, MT, Eastern Roosevelt, MT
Expires 8:00 PM
54 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
35°
6%
5 PM
36°
21%
6 PM
36°
21%
7 PM
34°
23%
8 PM
32°
23%
9 PM
27°
21%
10 PM
26°
21%
11 PM
26°
11%
12 AM
25°
9%
1 AM
23°
19%
2 AM
22°
34%
3 AM
22°
38%
4 AM
21°
31%
5 AM
18°
31%
6 AM
18°
45%
7 AM
19°
51%
8 AM
21°
59%
9 AM
21°
59%
10 AM
22°
59%
11 AM
23°
57%
12 PM
23°
50%
1 PM
28°
50%
2 PM
28°
50%
3 PM
28°
49%
7-Day Forecast
Today
38° 18°
Partly Cloudy with a 23% chance of rain.
Thu
34° 18°
Mostly Cloudy with a 59% chance of rain.
Fri
36° 13°
Mostly Clear.
Sat
39° 16°
Clear.
Sun
38° 20°
Clear.
Mon
31° 13°
Clear.
Tue
28° 7°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 35° Partly Cloudy 6% 9 mph SSE 26%
5 PM 36° Partly Cloudy 21% 6 mph S 26%
6 PM 36° Mostly Cloudy 21% 6 mph S 27%
7 PM 34° Partly Cloudy 23% 6 mph SSE 31%
8 PM 32° Mostly Cloudy 23% 6 mph SE 37%
9 PM 27° Overcast 21% 7 mph ESE 42%
10 PM 26° Overcast 21% 6 mph ESE 45%
11 PM 26° Overcast 11% 5 mph ESE 47%
12 AM 25° Overcast 9% 5 mph ESE 49%
1 AM 23° Overcast 19% 5 mph E 54%
2 AM 22° Overcast 34% 5 mph SSE 60%
3 AM 22° Overcast 38% 5 mph SSE 62%
4 AM 21° Overcast 31% 6 mph SSE 63%
5 AM 18° Mostly Cloudy 31% 5 mph SE 66%
6 AM 18° Mostly Cloudy 45% 6 mph ENE 68%
7 AM 19° Mostly Cloudy 51% 6 mph NNE 66%
8 AM 21° Mostly Cloudy 59% 9 mph NNE 61%
9 AM 21° Partly Cloudy 59% 9 mph NNE 57%
10 AM 22° Mostly Cloudy 59% 10 mph NNE 54%
11 AM 23° Rain 57% 13 mph N 52%
12 PM 23° Rain 50% 14 mph N 51%
1 PM 28° Rain 50% 12 mph N 53%
2 PM 28° Rain 50% 11 mph NNE 54%
3 PM 28° Rain 49% 11 mph NNE 54%
15-Day Forecast
Today
7/29
Partly Cloudy
23%
18°
38°
Thu
7/30
Mostly Cloudy
59%
18°
34°
Fri
7/31
Mostly Clear
7%
13°
36°
Sat
8/1
Clear
3%
16°
39°
Sun
8/2
Clear
3%
20°
38°
Mon
8/3
Clear
8%
13°
31°
Tue
8/4
Clear
8%
7°
28°
Wed
8/5
Clear
18%
8°
31°
Thu
8/6
Partly Cloudy
25%
13°
34°
Fri
8/7
Clear
34%
14°
36°
Sat
8/8
Clear
25%
11°
33°
Sun
8/9
Clear
25%
18°
33°
Mon
8/10
Drizzle
60%
19°
34°
Tue
8/11
Clear
25%
19°
35°
Wed
8/12
Drizzle
60%
20°
37°
54
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
54 AQI 10.5 µg/m³
O3
Ground-level ozone
45 AQI 50 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 54 Moderate 45 54
Fri 53 Moderate 48 53
Sat 52 Moderate 44 52
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
SBCAPE1421 J/kg
MLCAPE1397 J/kg
MUCAPE1400 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-5.9
Kinematics
0–6 km Shear33 kt
0–1 km Shear7 kt
Eff. Shear30 kt
0–1 km SRH22
0–3 km SRH-37
Eff. SRH-37
Storm Motion208° @ 23 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index38.0
Thermo & Levels
PWAT1.44 in
0–3 km LR8.4 °C/km
700–500 LR8.5 °C/km
Total Totals57.5
LCL690 hPa
LFC926 hPa
EL218 hPa
Freezing Lvl13,379 ft