Havertown, PA Weather

Delaware County12:50 PM EDT39.98°N, 75.31°WElevation 276 ft

Current conditions

Partly Cloudy
59°
Partly Cloudy
Feels like 59°
High 62°·Low 38°
Wind3 mph
Humidity37%
Dew point33°
Pressure30.58 inHg
Visibility10.0 mi
Cloud cover9%
UV index3 Moderate
Sunrise7:22 AM
Sunset6:10 PM

Observed at Philadelphia, Philadelphia International Airport · 56 min ago

Forecast

10-day

  • Saturday

    Areas of frost before 9am. Sunny, with a high near 62. North wind 0 to 5 mph.

  • Saturday Night

    Patchy frost after 5am. Mostly clear, with a low around 38.

  • Sunday

    Patchy frost before 9am. Sunny, with a high near 65.

National Weather Service forecast updated 2 days ago.

Hourly

Hourly forecast
  1. Now Sunny 57°
  2. 1 PM Sunny 59°
  3. 2 PM Sunny 60°
  4. 3 PM Sunny 61°
  5. 4 PM Sunny 62°
  6. 5 PM Sunny 61°
  7. 6 PM Mostly Clear 58°
  8. 7 PM Mostly Clear 54°
  9. 8 PM Mostly Clear 50°
  10. 9 PM Mostly Clear 47°
  11. 10 PM Mostly Clear 46°
  12. 11 PM Mostly Clear 44°
  13. Sun12 AM Mostly Clear 43°
  14. 1 AM Mostly Clear 41°
  15. 2 AM Mostly Clear 41°
  16. 3 AM Mostly Clear 40°
  17. 4 AM Mostly Clear 40°
  18. 5 AM Patchy Frost 39°
  19. 6 AM Patchy Frost 38°
  20. 7 AM Patchy Frost 38°
  21. 8 AM Patchy Frost 39°
  22. 9 AM Sunny 44°
  23. 10 AM Sunny 50°
  24. 11 AM Sunny 56°

10-day forecast

Details
  1. ThuOct 22 Sunny Sunny44°66°
  2. FriOct 23 Sunny Sunny36°60°
  3. TodayOct 24 Areas Of Frost then Sunny Areas Of Frost then Sunny38°62°
  4. SunOct 25 Patchy Frost then Sunny Patchy Frost then Sunny41°65°
  5. MonOct 26 Sunny Sunny47°68°
  6. TueOct 27 Sunny Sunny47°67°
  7. WedOct 28 Partly Sunny Partly Sunny47°64°
  8. ThuOct 29 Sunny Sunny45°66°
  9. FriOct 30 Partly cloudy Partly cloudy50°71°
  10. SatOct 31 Partly cloudy Partly cloudy46°61°

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

Radar

Full map
Open the National Weather Service radar (the map here needs JavaScript).

Weather news near Havertown

More weather news

Air quality

59
Moderate
Fine particles (PM2.5)

Acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Forecast

  • SatGood (50)
  • SunModerate (65)
  • MonGood (50)

Philadelphia, 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 7:22 AM
Sunset 6:10 PM
Daylight 10 h 48 min (−2 min 27 s tomorrow)
Waxing Gibbous · 97% lit
Moonrise 5:01 PM Moonset 5:35 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low64° / 41°
Month to date2.25 in (normal 3.04 in)

Phoenixville 1 E, records since 1893. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in PHI, issued 14 hrs ago

What Has Changed

Aviation section updated for 00Z TAFs.

Marine section updated.

Key Messages

1. Elevated tide cycles persist due to Post- Tropical Cyclone Josephine well off the coast, resulting in widespread minor coastal flooding continuing for back bay areas in Ocean County, NJ and Sussex County, DE.

2. Frost and freeze impacts tonight and Saturday night where the growing season continues.

Discussion

KEY MESSAGE 1...Elevated tide cycles persist due to Post- Tropical Cyclone Josephine well off the coast, resulting in widespread minor coastal flooding continuing for back bay areas in Ocean County, NJ and Sussex County, DE.

Post-Tropical Cyclone Josephine has pulled away from the region as it's now over the Canadian Maritimes. However elevated water levels persist, mainly in the back bay areas of Ocean County, NJ and Sussex County, Delaware. The Coastal Flood Advisory for these counties is in effect until 7 AM Saturday.

KEY MESSAGE 2...Frost and freeze impacts tonight and Saturday night where the growing season continues.

A Freeze Warning was issued for areas north and west of the I-95 corridor from midnight until 9 AM Saturday where the growing season remains active. For the I-95 corridor and areas south and east, a Frost Advisory was issued from midnight until 9 AM Saturday for all other zones, excluding Sussex County in Delaware and the barrier islands in New Jersey.

As an upper-level trough pivots across the Northeast tonight, a strong mid-level ridge in the Plains to Midwest shifts eastward through the weekend. This will support strong surface high pressure shifting eastward into the Northeast and Mid-Atlantic through the weekend.

A chilly and dry airmass will accompany this strong surface high, and as the high itself settles more overhead, forecast soundings show surface winds decoupling. This will set the stage for efficient radiational cooling both tonight and Saturday night. The forecast lows are in the upper 20s to mid 30s for much of the area (with the only exception along the immediate coastal strip) with a favorable setup for frost and freeze. Some scattered to broken cirrus will be in place overnight. However, the thin cloud coverage will be the only limiting reagent to the efficient radiational cooling. This will probably slow cooling down by a few degrees at best, likely aiding to prevent a widespread freeze situation, but it is not expected to slam the brakes hard on the efficient radiational cooling setup overnight.

Aviation

The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas.

Tonight...VFR. Winds will go calm for a time, then increase slightly out of the north to northeast less than 5 kts after 06Z. High confidence.

Saturday...VFR. Winds 5 kts or less favoring a north to northeast direction early, then shifting more easterly and becoming variable after 18Z. Winds may become calm at times. High confidence.

Saturday night...VFR/SKC. Calm winds. High confidence.

Outlook...

Sunday through Wednesday...VFR. No significant weather expected.

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 4Search index and reflects what the press published. Terms of use.