Herndon Hourly Forecast
Next 48 Hours
Today
Mostly cloudy. Highs in the upper 40s. Northwest winds 5 to 10 mph.
Tonight
Mostly cloudy. Lows in the lower 30s. Northwest winds 5 to 10 mph.
| Fri, Nov 22nd | Temp | Humidity | Wind (mph) | Pressure | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 PM Partly Cloudy  UV Index: 1.5 |
45°F Feels 39°F |
69% | 10.3 NW | 30.09 inHg | 35.4°F | 0% |
1 PM Partly Cloudy UV Index: 1.1 |
46°F Feels 41°F |
67% | 10.5 NW | 30.09 inHg | 36.1°F | 0% |
2 PM Partly Cloudy UV Index: 1.5 |
47°F Feels 41°F |
65% | 11.9 NW | 30.09 inHg | 36.6°F | 0% |
3 PM Cloudy  UV Index: 0.6 |
46°F Feels 41°F |
67% | 12.5 NW | 30.09 inHg | 36.7°F | 0% |
4 PM Overcast  UV Index: 0.1 |
45°F Feels 39°F |
71% | 11 WNW | 30.08 inHg | 37°F | 0% |
5 PM Overcast  UV Index: 0 |
45°F Feels 39°F |
75% | 11 NW | 30.08 inHg | 37.3°F | 0% |
6 PM Overcast UV Index: 0 |
44°F Feels 38°F |
77% | 10.1 NW | 30.08 inHg | 37.5°F | 0% |
7 PM Overcast UV Index: 0 |
44°F Feels 38°F |
78% | 9.4 WNW | 30.09 inHg | 37.6°F | 0% |
8 PM Overcast UV Index: 0 |
44°F Feels 38°F |
77% | 9.8 NW | 30.09 inHg | 36.9°F | 0% |
9 PM Overcast UV Index: 0 |
44°F Feels 38°F |
76% | 9.8 NW | 30.1 inHg | 36.7°F | 0% |
10 PM Overcast UV Index: 0 |
44°F Feels 38°F |
76% | 10.1 NW | 30.11 inHg | 36.7°F | 0% |
11 PM Overcast UV Index: 0 |
44°F Feels 38°F |
75% | 7.4 NW | 30.11 inHg | 36.8°F | 0% |
Saturday
Mostly sunny. Highs in the lower 50s. West winds around 5 mph.
Saturday Night
Mostly clear. Lows in the mid 30s. South winds around 5 mph.
| Sat, Nov 23rd | Temp | Humidity | Wind (mph) | Pressure | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 AM Overcast UV Index: 0 |
44°F Feels 38°F |
76% | 6.3 WNW | 30.12 inHg | 36.4°F | 0% |
1 AM Overcast UV Index: 0 |
43°F Feels 38°F |
77% | 5.4 WNW | 30.12 inHg | 36.6°F | 0% |
2 AM Overcast UV Index: 0 |
43°F Feels 38°F |
78% | 6.3 WNW | 30.11 inHg | 36.5°F | 0% |
3 AM Overcast UV Index: 0 |
43°F Feels 38°F |
79% | 6.7 WNW | 30.11 inHg | 36.5°F | 0% |
4 AM Overcast UV Index: 0 |
42°F Feels 37°F |
80% | 5.1 W | 30.12 inHg | 36.4°F | 0% |
5 AM Overcast UV Index: 0 |
42°F Feels 37°F |
80% | 6 WNW | 30.13 inHg | 36.3°F | 0% |
6 AM Overcast UV Index: 0 |
42°F Feels 37°F |
79% | 5.4 WNW | 30.14 inHg | 35.8°F | 0% |
7 AM Overcast UV Index: 0 |
42°F Feels 38°F |
79% | 4.7 WNW | 30.16 inHg | 35.7°F | 0% |
8 AM Overcast UV Index: 0.3 |
42°F Feels 38°F |
80% | 5.4 WNW | 30.16 inHg | 36°F | 0% |
9 AM Overcast UV Index: 0.9 |
42°F Feels 38°F |
81% | 4.9 W | 30.16 inHg | 36.1°F | 0% |
10 AM Overcast UV Index: 1.7 |
43°F Feels 39°F |
79% | 5.1 WNW | 30.18 inHg | 36.2°F | 0% |
11 AM Cloudy UV Index: 2.4 |
44°F Feels 41°F |
73% | 5.4 WNW | 30.19 inHg | 35.9°F | 0% |
12 PM Cloudy UV Index: 2.6 |
45°F Feels 42°F |
70% | 5.6 WNW | 30.19 inHg | 35.8°F | 0% |
1 PM Cloudy UV Index: 2.2 |
47°F Feels 44°F |
67% | 5.6 WNW | 30.17 inHg | 35.9°F | 0% |
2 PM Partly Cloudy UV Index: 1.5 |
48°F Feels 46°F |
65% | 5.6 WNW | 30.15 inHg | 36.9°F | 0% |
3 PM Partly Cloudy UV Index: 0.7 |
49°F Feels 48°F |
65% | 5.6 W | 30.12 inHg | 38.5°F | 0% |
4 PM Partly Cloudy UV Index: 0.2 |
50°F Feels 49°F |
65% | 5.8 WSW | 30.11 inHg | 39.3°F | 0% |
5 PM Clear  UV Index: 0 |
49°F Feels 48°F |
65% | 5.8 WSW | 30.1 inHg | 40°F | 0% |
6 PM Clear UV Index: 0 |
48°F Feels 46°F |
70% | 4.9 W | 30.1 inHg | 39°F | 0% |
7 PM Clear UV Index: 0 |
47°F Feels 45°F |
72% | 4.5 SW | 30.11 inHg | 38.4°F | 0% |
8 PM Clear UV Index: 0 |
45°F Feels 43°F |
75% | 4.9 SW | 30.11 inHg | 37.9°F | 0% |
9 PM Clear UV Index: 0 |
44°F Feels 42°F |
78% | 4.9 SW | 30.11 inHg | 37.5°F | 0% |
10 PM Clear UV Index: 0 |
44°F Feels 41°F |
80% | 4.5 SW | 30.1 inHg | 37.2°F | 0% |
11 PM Clear UV Index: 0 |
42°F Feels 40°F |
79% | 4.9 SSW | 30.09 inHg | 36.8°F | 0% |
Sunday
Sunny. Highs in the lower 60s. South winds 5 to 10 mph.
Sunday Night
Partly cloudy in the evening, then becoming mostly cloudy. Not as cool. Near steady temperature in the lower 50s.
| Sun, Nov 24th | Temp | Humidity | Wind (mph) | Pressure | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 AM Partly Cloudy  UV Index: 0 |
41°F Feels 39°F |
84% | 4.5 SSW | 30.09 inHg | 36.6°F | 0% |
1 AM Partly Cloudy UV Index: 0 |
41°F Feels 38°F |
85% | 5.6 SSW | 30.09 inHg | 36.4°F | 0% |
2 AM Clear UV Index: 0 |
40°F Feels 37°F |
86% | 5.4 SSW | 30.09 inHg | 36.2°F | 0% |
3 AM Clear UV Index: 0 |
40°F Feels 36°F |
87% | 5.6 SSW | 30.09 inHg | 35.7°F | 0% |
4 AM Clear UV Index: 0 |
39°F Feels 36°F |
87% | 5.8 SSW | 30.09 inHg | 35.5°F | 0% |
5 AM Clear UV Index: 0 |
39°F Feels 35°F |
88% | 5.8 SSW | 30.1 inHg | 35.3°F | 0% |
6 AM Clear UV Index: 0 |
39°F Feels 35°F |
87% | 5.8 SSW | 30.1 inHg | 35.2°F | 0% |
7 AM Sunny UV Index: 0 |
39°F Feels 35°F |
87% | 6 SSW | 30.1 inHg | 35.2°F | 0% |
8 AM SunnyUV Index: 0.3 |
41°F Feels 37°F |
87% | 6.5 SSW | 30.1 inHg | 35.2°F | 0% |
9 AM Cloudy UV Index: 0.9 |
43°F Feels 39°F |
81% | 6.7 S | 30.1 inHg | 38°F | 0% |
10 AM Cloudy UV Index: 1.8 |
46°F Feels 41°F |
79% | 6.5 S | 30.1 inHg | 39.3°F | 0% |
11 AM Cloudy UV Index: 2.2 |
50°F Feels 47°F |
76% | 9.4 SSW | 30.09 inHg | 40.7°F | 0% |
Currently
 |
44°F |
30.09in
Barometer 63%
Humidity Northwest 9.2mph Wind |
| Overcast | ||
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