Severe Thunderstorm Watch 9:00 PM Wind Advisory — Oregon Lower Treasure Valley, OR, Southern Twin Falls County, ID, Lower Treasure Valley, ID, Upper Treasure Valley, ID, Upper Weiser River, ID, Southwest Highlands, ID, IDZ029 11:00 PM

Meridian, Idaho

Last updated: 7:13 PM CDT  ·  Refresh
38°C
Feels like 35°
Mostly Cloudy
▲ 39°  /  ▼ 21°
Wind
5 mph NW
Humidity
10%
Dew Point
4°
Pressure
27.10 inHg
Visibility
10 mi
UV Index
4.2
Cloud Cover
66%
Sunrise
6:55 AM
Sunset
8:39 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Meridian is currently mostly cloudy at 38°C. Dry conditions are expected through the next 24 hours. Sunrise: 6:55AM · Sunset: 8:39PM.

Alerts

Severe Thunderstorm Watch
Expires 9:00 PM
Wind Advisory
Oregon Lower Treasure Valley, OR, Southern Twin Falls County, ID, Lower Treasure Valley, ID, Upper Treasure Valley, ID, Upper Weiser River, ID, Southwest Highlands, ID, IDZ029
Expires 11:00 PM
72 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
38°
10%
7 PM
38°
14%
8 PM
36°
9%
9 PM
33°
25%
10 PM
30°
4%
11 PM
29°
4%
12 AM
28°
4%
1 AM
27°
4%
2 AM
26°
4%
3 AM
26°
12%
4 AM
25°
12%
5 AM
24°
12%
6 AM
21°
13%
7 AM
22°
13%
8 AM
23°
13%
9 AM
24°
5%
10 AM
28°
5%
11 AM
29°
5%
12 PM
30°
5%
1 PM
33°
5%
2 PM
35°
5%
3 PM
36°
12%
4 PM
36°
12%
5 PM
37°
13%
7-Day Forecast
Tonight
39° 21°
Mostly Cloudy with a 25% chance of rain.
Sat
37° 21°
Partly Cloudy.
Sun
33° 14°
Clear.
Mon
36° 13°
Mostly Cloudy.
Tue
37° 17°
Mostly Cloudy.
Wed
37° 18°
Mostly Clear.
Thu
30° 14°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 38° Mostly Cloudy 10% 5 mph NW 10%
7 PM 38° Overcast 14% 6 mph WSW 14%
8 PM 36° Overcast 9% 8 mph SSW 18%
9 PM 33° Rain 25% 9 mph SSW 21%
10 PM 30° Mostly Cloudy 4% 7 mph S 22%
11 PM 29° Mostly Cloudy 4% 7 mph S 24%
12 AM 28° Mostly Cloudy 4% 7 mph SSE 26%
1 AM 27° Mostly Cloudy 4% 6 mph SSE 27%
2 AM 26° Mostly Cloudy 4% 6 mph SSE 28%
3 AM 26° Partly Cloudy 12% 6 mph SE 30%
4 AM 25° Partly Cloudy 12% 7 mph SE 31%
5 AM 24° Mostly Cloudy 12% 7 mph SE 33%
6 AM 21° Mostly Cloudy 13% 7 mph SE 35%
7 AM 22° Mostly Cloudy 13% 6 mph SE 36%
8 AM 23° Mostly Cloudy 13% 5 mph SE 34%
9 AM 24° Mostly Cloudy 5% 6 mph SSE 32%
10 AM 28° Mostly Cloudy 5% 7 mph S 29%
11 AM 29° Mostly Cloudy 5% 8 mph S 27%
12 PM 30° Mostly Cloudy 5% 9 mph S 25%
1 PM 33° Partly Cloudy 5% 8 mph SSW 22%
2 PM 35° Partly Cloudy 5% 6 mph SSW 19%
3 PM 36° Partly Cloudy 12% 6 mph SW 17%
4 PM 36° Partly Cloudy 12% 6 mph SW 17%
5 PM 37° Partly Cloudy 13% 7 mph SW 16%
15-Day Forecast
Today
8/21
Mostly Cloudy
25%
21°
39°
Sat
8/22
Partly Cloudy
13%
21°
37°
Sun
8/23
Clear
13%
14°
33°
Mon
8/24
Mostly Cloudy
7%
13°
36°
Tue
8/25
Mostly Cloudy
7%
17°
37°
Wed
8/26
Mostly Clear
3%
18°
37°
Thu
8/27
Clear
3%
14°
30°
Fri
8/28
Mostly Clear
3%
14°
34°
Sat
8/29
Clear
3%
13°
31°
Sun
8/30
Partly Cloudy
3%
12°
33°
Mon
8/31
Clear
11%
12°
28°
Tue
9/1
Clear
25%
13°
29°
Wed
9/2
Clear
25%
13°
29°
Thu
9/3
Clear
3%
13°
30°
Fri
9/4
Clear
25%
13°
31°
72
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
72 AQI 20.2 µg/m³
O3
Ground-level ozone
67 AQI 60 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 72 Moderate 67 72
Sun 43 Good 43 36
Mon 44 Good 44 36
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 Fri Aug 21, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE42 J/kg
MLCAPE13 J/kg
MUCAPE42 J/kg
SBCIN0 J/kg
MLCIN-1 J/kg
Lifted Index1.0
Kinematics
0–6 km Shear21 kt
0–1 km Shear3 kt
Eff. Shear6 kt
0–1 km SRH16
0–3 km SRH53
Eff. SRH86
Storm Motion240° @ 17 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index17.3
Thermo & Levels
PWAT0.85 in
0–3 km LR8.8 °C/km
700–500 LR8.9 °C/km
Total Totals45.3
LCL558 hPa
LFC918 hPa
EL385 hPa
Freezing Lvl13,983 ft