Location & Surroundings
Semple Run is a stream in Maryland, United States, at 106 m elevation. The nearest larger town is Halfway, 5 km to the east. The national capital Washington is about 105 km to the southeast. The nearest airport is Flying d Airport, 10 km away.
Basic Data
- Type stream (STM)
- a body of running water moving to a lower level in a channel on land
Geography
-
Coordinates
39° 36' 38" N, 77° 49' 4" W
- Elevation 106 m (DEM: 111 m)
- Timezone America/New_York
- Time Shift GMT -5 (DST -4)
Statistics & Country
- Pop. Density 15 p/km²
- Built-up 2.7%
- Settlement Suburban / peri-urban
- Currency Dollar (USD)
- Phone Prefix +1
Sun & Local Time
- Local time 03:07
- Sunrise 06:54
- Sunset 16:57
- Day length 10 h 3 min
Other streams nearby
Nearby
Weather in Semple Run
Current conditions and a 3-day (72-hour) weather forecast for Semple Run, updated from the NOAA GFS model.
Now 5.8 C with overcast skies and a 6.2 m/s north-westerly wind. Next 24h: 4.2 to 7.6 C, max wind 6.2 m/s. Precip around 0.1 mm. Solar peaks near 146 W/m2.
Temperature
5.8 C
Wind
6.2 m/s NW (299 deg)
Humidity
69 %
Pressure
1,017.0 hPa
Clouds
96 %
Precip
0.08 mm
Solar
0.0 W/m2
UV-B
n/a
| Hour | Temp (C) | Wind (m/s) | Dir (deg) | RH (%) | Pressure (hPa) | Precip (step/total mm) | Clouds (%) | Solar (W/m2) | UV-B (W/m2) |
|---|---|---|---|---|---|---|---|---|---|
| NOW | 5.8 | 6.2 | 299 | 69 | 1,017.0 | - / 0.00 | 96 | 0.0 | n/a |
| 6h | 4.2 | 5.9 | 299 | 71 | 1,019.4 | 0.00 / 0.00 | 61 | 0.0 | n/a |
| 12h | 4.8 | 5.0 | 293 | 77 | 1,022.5 | 0.05 / 0.05 | 51 | 0.0 | n/a |
| 18h | 7.6 | 6.0 | 324 | 61 | 1,024.3 | 0.10 / 0.16 | 95 | 145.6 | n/a |
| Tomorrow | 5.9 | 3.2 | 313 | 67 | 1,027.3 | 0.00 / 0.08 | 74 | 87.4 | n/a |
| 30h | 2.7 | 1.7 | 336 | 79 | 1,029.6 | 0.00 / 0.00 | 54 | 0.0 | n/a |
| 36h | 5.8 | 4.0 | 340 | 61 | 1,031.8 | 0.00 / 0.00 | 96 | 0.0 | n/a |
| 42h | 10.5 | 4.9 | 332 | 48 | 1,031.3 | 0.00 / 0.00 | 11 | 237.6 | n/a |
| Tuesday | 4.2 | 2.7 | 316 | 78 | 1,033.4 | 0.00 / 0.00 | 5 | 170.7 | n/a |
| 54h | 1.7 | 0.9 | 286 | 86 | 1,034.0 | 0.00 / 0.00 | 0 | 0.0 | n/a |
| 60h | 0.4 | 1.0 | 297 | 90 | 1,035.8 | 0.00 / 0.00 | 0 | 0.0 | n/a |
| 66h | 12.7 | 2.7 | 318 | 43 | 1,033.5 | 0.00 / 0.00 | 2 | 358.1 | n/a |
| Wednesday | 6.2 | 1.0 | 343 | 66 | 1,033.9 | 0.00 / 0.00 | 0 | 172.3 | n/a |
Source: NOAA GFS 0.25° (run 2026-11-15 00:00 UTC).
FAQ
What is the current weather and next 24-hour outlook in Semple Run?
Now 5.8 C with overcast skies and a 6.2 m/s north-westerly wind. Next 24h: 4.2 to 7.6 C, max wind 6.2 m/s. Precip around 0.1 mm. Solar peaks near 146 W/m2.
Is precipitation expected in the next 24 hours?
Around 0.1 mm of precipitation is expected in the next 24 hours.
When are sunrise and sunset in Semple Run today?
Sunrise around 06:54 and sunset around 16:57 (local time). Day length about 10h 03m.
What is the local time in Semple Run?
Local time is 03:07. Time zone: America/New_York (UTC-05:00).
What type of place is Semple Run?
Semple Run is a stream.
What is the elevation of Semple Run?
Elevation about 106 m. DEM 111 m.
Where is Semple Run located?
It is at 39.61065, -77.81777 (latitude, longitude).
Which country is Semple Run in?
It is in United States.