Herndon Hourly Forecast
Next 12 Hours
Tonight
Cloudy. Rain showers, snow showers with a slight chance of freezing rain this evening, then a chance of rain showers after midnight. Snow accumulation up to 1 inch. Near steady temperature in the mid 30s. West winds 15 to 20 mph with gusts up to 40 mph. Chance of precipitation 90 percent.
Saturday
Cloudy. A slight chance of rain showers in the morning. Highs in the lower 40s. West winds 10 to 15 mph. Gusts up to 35 mph in the morning. Chance of rain 20 percent.
| Fri, Nov 22nd | Temp | Humidity | Wind (mph) | Pressure | Dew Point | Precip. |
|---|---|---|---|---|---|---|
7 PM Overcast  UV Index: 0 |
34°F Feels 24°F |
96% | 16.1 W | 29.82 inHg | 32.7°F | 0% |
8 PM Heavy Snow UV Index: 0 |
34°F Feels 24°F |
97% | 15.9 WNW | 29.83 inHg | 32.9°F | 100% Rain est. 0.14in |
9 PM Overcast UV Index: 0 |
34°F Feels 24°F |
97% | 16.1 WNW | 29.83 inHg | 33.3°F | 0% |
10 PM Overcast UV Index: 0 |
35°F Feels 25°F |
97% | 16.6 WNW | 29.85 inHg | 34°F | 0% |
11 PM Heavy SnowUV Index: 0 |
35°F Feels 25°F |
96% | 17.2 WNW | 29.86 inHg | 34.3°F | 100% Rain est. 0.13in |
Saturday Night
Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 30s. Southwest winds 5 to 10 mph.
Sunday
Sunny. Not as cool with highs in the mid 50s. Southwest winds around 5 mph.
| Sat, Nov 23rd | Temp | Humidity | Wind (mph) | Pressure | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 AM Overcast UV Index: 0 |
36°F Feels 26°F |
96% | 16.8 WNW | 29.85 inHg | 34.4°F | 0% |
1 AM Overcast UV Index: 0 |
36°F Feels 26°F |
96% | 15.9 WNW | 29.85 inHg | 34.9°F | 0% |
2 AM Moderate Snow UV Index: 0 |
36°F Feels 27°F |
97% | 15.9 WNW | 29.85 inHg | 35.6°F | 100% Rain est. 0.08in |
3 AM Overcast UV Index: 0 |
36°F Feels 27°F |
97% | 15.2 WNW | 29.86 inHg | 35.8°F | 0% |
4 AM Overcast UV Index: 0 |
37°F Feels 28°F |
97% | 14.5 WNW | 29.87 inHg | 36°F | 0% |
5 AM Light Sleet UV Index: 0 |
37°F Feels 28°F |
97% | 14.1 WNW | 29.9 inHg | 36.1°F | 100% Rain est. 0.05in |
6 AM Overcast UV Index: 0 |
37°F Feels 29°F |
97% | 13.6 WNW | 29.92 inHg | 36.3°F | 0% |
Currently
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