Brentwood, PA Weather

Allegheny County3:29 AM EDT40.37°N, 79.97°WElevation 1,181 ft

Current conditions

Fog/Mist
45°
Fog/Mist
Feels like 42°
High 67°·Low 40° tonight
WindS 5 mph
Humidity93%
Dew point43°
Pressure30.38 inHg
Visibility6.0 mi
Cloud cover19%
Sunrise7:43 AM
Sunset6:26 PM

Observed at Pittsburgh - Allegheny County Airport · 34 min ago

Forecast

10-day

  • Sunday Night

    Mostly clear, with a low around 40.

  • Monday

    Sunny, with a high near 67.

  • Monday Night

    Partly cloudy, with a low around 44.

National Weather Service forecast updated 4 days ago.

Hourly

Hourly forecast
  1. Now Mostly Clear 42°
  2. 4 AM Mostly Clear 42°
  3. 5 AM Mostly Clear 41°
  4. 6 AM Sunny 40°
  5. 7 AM Sunny 40°
  6. 8 AM Mostly Sunny 41°
  7. 9 AM Sunny 44°
  8. 10 AM Sunny 49°
  9. 11 AM Sunny 54°
  10. 12 PM Sunny 59°
  11. 1 PM Sunny 62°
  12. 2 PM Sunny 65°
  13. 3 PM Sunny 66°
  14. 4 PM Mostly Sunny 67°
  15. 5 PM Mostly Sunny 66°
  16. 6 PM Partly Cloudy 62°
  17. 7 PM Partly Cloudy 58°
  18. 8 PM Partly Cloudy 54°
  19. 9 PM Partly Cloudy 52°
  20. 10 PM Partly Cloudy 50°
  21. 11 PM Partly Cloudy 49°
  22. Tue12 AM Partly Cloudy 48°
  23. 1 AM Partly Cloudy 48°
  24. 2 AM Partly Cloudy 47°

10-day forecast

Details
  1. WedOct 21 Sunny Sunny36°64°
  2. ThuOct 22 Patchy Frost then Sunny Patchy Frost then Sunny43°64°
  3. FriOct 23 Mostly Sunny Mostly Sunny36°62°
  4. SatOct 24 Sunny Sunny37°64°
  5. SunOct 25 Sunny Sunny40°65°
  6. TodayOct 26 Sunny Sunny44°67°
  7. TueOct 27 Mostly Sunny Mostly Sunny44°65°
  8. WedOct 28 Sunny Sunny46°68°
  9. ThuOct 29 Mostly sunny Mostly sunny49°70°
  10. FriOct 30 Rain Rain0.15 in49°58°

Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.

Radar

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Weather news near Brentwood

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Air quality

105
Unhealthy for Sensitive Groups
Fine particles (PM2.5)

People with heart or lung disease, older adults, children and teenagers should reduce prolonged or heavy exertion outdoors.

Forecast

  • MonModerate (70)
  • TueModerate

Mon Valley Area, PA reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 7:43 AM
Sunset 6:26 PM
Daylight 10 h 42 min (−2 min 26 s tomorrow)
Full Moon · 100% lit
Moonrise 6:18 PM Moonset 8:17 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low59° / 40°
Record high82° (1991)
Record low25° (1962)
Wettest0.90 in (1978)
Month to date3.36 in (normal 2.27 in)

Pittsburgh Area, records since 1875. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in PBZ, issued 1 hr ago

What Has Changed

Update to Key Messages and Aviation Discussion.

Key Messages

1) Dry, quiet, and above-average temperatures continue through Sunday

Discussion

KEY MESSAGE 1... Confidence remains high that measurable precipitation will remain limited through Sunday as a ridge of high pressure dominates the Ohio River Valley. Persistent southwest flow aloft will support temperatures around 10 degrees above average throughout the week. The potential for frost for freeze conditions remain very low across the remaining counties where the growing season is still ongoing. However, with the November 1st cutoff approaching, the likelihood of issuing additional frost/freeze product is considered very low (less than 10%).

A cold front is expected to move across the region late tonight into early Tuesday morning. Fog may develop along or in the vicinity of the frontal boundary, primarily south of Pittsburgh near I-70 corridor.

Long-range models suggest a potential disturbance developing over the southern Great Plains this weekend and track east or northeast. However, significant run-to-run variability in the projected track continues to contribute to considerable uncertainty in rainfall amounts across the region.

Aviation

Passing high-level clouds early this morning may limit fog development along the river valleys, with VFR conditions expected to prevail through late this evening under variable winds.

A cold front will move into the region from the north between 00Z and 04Z Tuesday, shifting winds out of the north. Fog development may occur near the frontal boundary before sunrise Tuesday.

Outlook... High pressure ensures prolong periods of VFR and dry weather through at least Thursday.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use. How to use Weather