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Mount Pleasant, PA Weather
Current conditions
Observed at Arnold Palmer Regional Airport · 1 hr ago
Forecast
10-day-
Overnight
Mostly clear, with a low around 41. South wind around 2 mph.
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Monday
Sunny, with a high near 67. Southwest wind around 5 mph.
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Monday Night
Partly cloudy, with a low around 43. Southwest wind around 2 mph.
National Weather Service forecast updated 2 hrs ago.
Hourly
Hourly forecast- Now42°
- 5 AM41°
- 6 AM41°
- 7 AM41°
- 8 AM41°
- 9 AM44°
- 10 AM51°
- 11 AM56°
- 12 PM60°
- 1 PM63°
- 2 PM65°
- 3 PM66°
- 4 PM66°
- 5 PM66°
- 6 PM64°
- 7 PM60°
- 8 PM56°
- 9 PM52°
- 10 PM51°
- 11 PM50°
- Tue12 AM49°
- 1 AM48°
- 2 AM47°
- 3 AM47°
10-day forecast
Details- TonightOct 25Mostly Clear41°
- TodayOct 26Sunny43°67°
- TueOct 27Mostly Sunny46°68°
- WedOct 28Partly Sunny46°70°
- ThuOct 29Sunny49°71°
- FriOct 30Mostly Sunny48°70°
- SatOct 31Partly Sunny20%51°70°
- SunNov 1Chance Rain Showers36%68°
- MonNov 2Cloudy0.04 in52°69°
- TueNov 3Heavy rain0.46 in53°59°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
Radar
Full mapWeather news in Pennsylvania
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Air quality
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
Almanac
MonthlyDonegal 2 Nw, records since 1943. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
- Pittsburgh 50 km
- Mount Lebanon 49 km
- Bethel Park 47 km
- Monroeville 37 km
- Plum 43 km
- Allison Park 58 km
- Murrysville 34 km
- West Mifflin 36 km
- Johnstown 56 km
- Baldwin 43 km
- McKeesport 35 km
- Upper Saint Clair 51 km
Forecasters' discussion
From the National Weather Service office in PBZ, issued 2 hrs 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