Gresham, Oregon

Last updated: 4:28 AM CDT  ·  Refresh
9°C
Feels like 8°
Overcast
▲ 19°  /  ▼ 10°
Wind
2 mph S
Humidity
85%
Dew Point
8°
Pressure
29.76 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
87%
Sunrise
7:00 AM
Sunset
6:59 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Gresham is currently overcast at 10°C. Dry conditions are expected through the next 24 hours. Sunrise: 7:00AM · Sunset: 6:59PM.

Alerts

No active alerts for this location.
30 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
9°
7%
3 AM
9°
3%
4 AM
9°
3%
5 AM
8°
3%
6 AM
8°
3%
7 AM
8°
3%
8 AM
9°
3%
9 AM
10°
3%
10 AM
12°
3%
11 AM
13°
3%
12 PM
14°
3%
1 PM
17°
3%
2 PM
18°
3%
3 PM
18°
3%
4 PM
18°
3%
5 PM
19°
3%
6 PM
18°
3%
7 PM
17°
3%
8 PM
17°
3%
9 PM
14°
3%
10 PM
14°
3%
11 PM
14°
3%
12 AM
13°
3%
1 AM
12°
3%
7-Day Forecast
Today
19° 10°
Partly Cloudy.
Sun
22° 9°
Partly Cloudy.
Mon
22° 7°
Clear.
Tue
21° 11°
Drizzle, 60% chance.
Wed
21° 11°
Clear.
Thu
20° 8°
Clear.
Fri
17° 6°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 9° Overcast 7% 2 mph S 85%
3 AM 9° Overcast 3% 3 mph SSE 87%
4 AM 9° Mostly Cloudy 3% 3 mph SSE 88%
5 AM 8° Mostly Cloudy 3% 3 mph SSE 87%
6 AM 8° Partly Cloudy 3% 3 mph SSE 85%
7 AM 8° Mostly Clear 3% 3 mph SSE 83%
8 AM 9° Clear 3% 2 mph ESE 80%
9 AM 10° Clear 3% 2 mph NE 75%
10 AM 12° Clear 3% 3 mph NNE 69%
11 AM 13° Mostly Clear 3% 5 mph N 62%
12 PM 14° Partly Cloudy 3% 6 mph N 54%
1 PM 17° Partly Cloudy 3% 6 mph N 47%
2 PM 18° Mostly Cloudy 3% 7 mph N 43%
3 PM 18° Overcast 3% 6 mph N 42%
4 PM 18° Overcast 3% 7 mph N 42%
5 PM 19° Overcast 3% 7 mph N 46%
6 PM 18° Overcast 3% 6 mph N 52%
7 PM 17° Overcast 3% 6 mph N 56%
8 PM 17° Overcast 3% 6 mph N 54%
9 PM 14° Overcast 3% 6 mph NNE 53%
10 PM 14° Overcast 3% 6 mph NNE 52%
11 PM 14° Overcast 3% 6 mph NNE 52%
12 AM 13° Overcast 3% 6 mph NE 51%
1 AM 12° Mostly Cloudy 3% 6 mph NE 51%
15-Day Forecast
Today
9/26
Partly Cloudy
7%
10°
19°
Sun
9/27
Partly Cloudy
3%
9°
22°
Mon
9/28
Clear
3%
7°
22°
Tue
9/29
Drizzle
60%
11°
21°
Wed
9/30
Clear
16%
11°
21°
Thu
10/1
Clear
8%
8°
20°
Fri
10/2
Clear
8%
6°
17°
Sat
10/3
Clear
3%
6°
21°
Sun
10/4
Clear
3%
12°
26°
Mon
10/5
Clear
31%
11°
25°
Tue
10/6
Drizzle
60%
12°
26°
Wed
10/7
Drizzle
60%
12°
26°
Thu
10/8
Drizzle
60%
12°
24°
Fri
10/9
Drizzle
60%
12°
23°
Sat
10/10
Drizzle
60%
12°
23°
30
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
22 AQI 4.0 µg/m³
O3
Ground-level ozone
Dominant
30 AQI 33 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 30 Good 30 22
Sun 26 Good 26 18
Mon 33 Good 30 33
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 LCL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Sat Sep 26, 08:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE5 J/kg
MUCAPE0 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index12.2
Kinematics
0–6 km Shear30 kt
0–1 km Shear11 kt
Eff. Shear—
0–1 km SRH-10
0–3 km SRH10
Eff. SRH—
Storm Motion325° @ 25 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index-21.5
Thermo & Levels
PWAT0.49 in
0–3 km LR4.6 °C/km
700–500 LR5.0 °C/km
Total Totals31.6
LCL978 hPa
LFC—
EL—
Freezing Lvl7,034 ft