Roy (Luxembourg) — Weather
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15°C60°F· Clear · 0% cloud cover
Feels like 14°C56°F · Low 15°C60°F · High 21°C70°F
Wind
8 km/h2 m/s5 mph from N
Humidity
70%
Pressure
1026 hPa30.30 inHgstable
UV Index
3.4Moderate
Fair weather
Roy, 15°C59°F — clear skies right now.
🌧️ Local instability on Sunday, with rain. Total ~3.7 mm. Below the monthly normal (80 mm/month).
🌡️ Today's 21°C70°F is 4.6°C43°F warmer than the July norm (16°C61°F).
Hourly forecast
Detailed forecast for the next 60 hours
TemperaturePrecipitationWind
CAPE (J/kg)Instability Threshold
Now
15°C60°F
85
70
11:00
17°C62°F
117
62
12:00
18°C64°F
138
57
13:00
19°C65°F
128
55
14:00
19°C67°F
128
53
15:00
20°C68°F
148
47
16:00
21°C69°F
149
47
17:00
21°C70°F
149
44
18:00
21°C69°F
138
44
19:00
20°C68°F
138
43
20:00
19°C67°F
85
50
21:00
18°C64°F
64
52
22:00
16°C61°F
32
62
23:00
15°C60°F
42
65
00:00
14°C57°F
63
71
01:00
13°C56°F
53
77
02:00
12°C54°F
43
85
03:00
12°C53°F
32
89
04:00
11°C52°F
32
92
05:00
11°C51°F
21
94
06:00
11°C52°F
11
97
07:00
12°C53°F
21
98
08:00
13°C55°F
32
93
09:00
14°C57°F
64
88
10:00
15°C60°F
42
77
11:00
16°C60°F
106
75
12:00
17°C63°F
106
68
13:00
17°C63°F
127
67
14:00
18°C65°F
117
62
15:00
17°C63°F
117
63
16:00
18°C65°F
1710
59
17:00
19°C66°F
138
59
18:00
18°C65°F
1710
62
19:00
18°C65°F
159
64
20:00
17°C63°F
149
66
21:00
16°C61°F
106
66
22:00
15°C58°F
53
75
23:00
13°C56°F
43
84
00:00
12°C54°F
42
87
03:00
12°C54°F
42
90
06:00
10°C51°F
21
96
09:00
14°C57°F
85
81
12:00
18°C64°F
127
59
15:00
21°C69°F
149
46
18:00
21°C70°F
149
43
21:00
18°C64°F
106
55
mminkm/hm/smphHumidity %
Daily Forecast
TodayN 14 km/h4 m/s9 mph(gusts 31920)54%UV 512hTodayPartly cloudy54%N 14 km/h4 m/s9 mph (gusts 31920)UV 512h
Today
N 14 km/h4 m/s9 mph(gusts 31920)54%UV 512h
Today
Partly cloudy
54%
N 14 km/h4 m/s9 mph (gusts 31920)
UV 5
12h
Today — Hourly Forecast
Now
15°C60°F
825
11:00
17°C62°F
1137
12:00
18°C64°F
1348
13:00
19°C65°F
1238
14:00
19°C67°F
1238
15:00
20°C68°F
1448
16:00
21°C69°F
1449
17:00
21°C70°F
1449
18:00
21°C69°F
1348
19:00
20°C68°F
1348
20:00
19°C67°F
825
21:00
18°C64°F
624
22:00
16°C61°F
312
23:00
15°C60°F
412
05:5215.7h21:37
TomorrowNW 17 km/h5 m/s10 mph(gusts 34921)76%UV 34hTomorrowFog76%NW 17 km/h5 m/s10 mph (gusts 34921)UV 34h
Tomorrow
NW 17 km/h5 m/s10 mph(gusts 34921)76%UV 34h
Tomorrow
Fog
76%
NW 17 km/h5 m/s10 mph (gusts 34921)
UV 3
4h
Tomorrow — Hourly Forecast
00:00
14°C57°F
623
01:00
13°C56°F
513
02:00
12°C54°F
413
03:00
12°C53°F
312
04:00
11°C52°F
312
05:00
11°C51°F
211
06:00
11°C52°F
101
07:00
12°C53°F
201
08:00
13°C55°F
312
09:00
14°C57°F
624
10:00
15°C60°F
412
11:00
16°C60°F
1036
12:00
17°C63°F
1036
13:00
17°C63°F
1237
14:00
18°C65°F
1137
15:00
17°C63°F
1137
16:00
18°C65°F
17510
17:00
19°C66°F
1348
18:00
18°C65°F
17510
19:00
18°C65°F
1549
20:00
17°C63°F
1449
21:00
16°C61°F
1036
22:00
15°C58°F
513
23:00
13°C56°F
413
05:5315.7h21:35
ThursdayNW 14 km/h4 m/s9 mph(gusts 371023)69%UV 26hThursdayOvercast69%NW 14 km/h4 m/s9 mph (gusts 371023)UV 26h
Thursday
NW 14 km/h4 m/s9 mph(gusts 371023)69%UV 26h
Thursday
Overcast
69%
NW 14 km/h4 m/s9 mph (gusts 371023)
UV 2
6h
Thursday — Forecast Overview
00:00
12°C54°F
412
03:00
12°C54°F
412
06:00
10°C51°F
201
09:00
14°C57°F
825
12:00
18°C64°F
1237
15:00
21°C69°F
1449
18:00
21°C70°F
1449
21:00
18°C64°F
1036
05:5515.7h21:34
FridayNE 9 km/h3 m/s6 mph(gusts 24715)60%UV 213hFridayClear60%NE 9 km/h3 m/s6 mph (gusts 24715)UV 213h
Friday
NE 9 km/h3 m/s6 mph(gusts 24715)60%UV 213h
Friday
Clear
60%
NE 9 km/h3 m/s6 mph (gusts 24715)
UV 2
13h
Friday — Forecast Overview
00:00
13°C56°F
312
03:00
11°C52°F
312
06:00
9°C49°F
312
09:00
15°C59°F
623
12:00
21°C70°F
724
15:00
25°C77°F
724
18:00
25°C78°F
925
21:00
19°C67°F
623
05:5615.6h21:33
SaturdaySW 17 km/h5 m/s11 mph(gusts 31919)46%UV 213hSaturdayClear46%SW 17 km/h5 m/s11 mph (gusts 31919)UV 213h
Saturday
SW 17 km/h5 m/s11 mph(gusts 31919)46%UV 213h
Saturday
Clear
46%
SW 17 km/h5 m/s11 mph (gusts 31919)
UV 2
13h
Saturday — Forecast Overview
00:00
15°C59°F
413
03:00
13°C56°F
624
06:00
13°C55°F
513
09:00
21°C70°F
100
12:00
27°C80°F
724
15:00
29°C85°F
1137
18:00
30°C85°F
17511
21:00
22°C71°F
1549
05:5715.6h21:32
Sunday3.7 mm0.14 inSW 18 km/h5 m/s11 mph(gusts 491431)77%UV 25hSundayLight rain77%SW 18 km/h5 m/s11 mph (gusts 491431)3.7 mm0.14 inUV 25h
Sunday
3.7 mm0.14 inSW 18 km/h5 m/s11 mph(gusts 491431)77%UV 25h
Sunday
Light rain
77%
SW 18 km/h5 m/s11 mph (gusts 491431)
3.7 mm0.14 in
UV 2
5h
Night14°C57°F
14°C57°FMorning15°C59°F
15°C59°FAfternoon18°C64°F
18°C64°FEvening16°C61°F
16°C61°F05:5915.5h21:30
MondayW 16 km/h5 m/s10 mph(gusts 421226)72%UV 26hMondayOvercast72%W 16 km/h5 m/s10 mph (gusts 421226)UV 26h
Monday
W 16 km/h5 m/s10 mph(gusts 421226)72%UV 26h
Monday
Overcast
72%
W 16 km/h5 m/s10 mph (gusts 421226)
UV 2
6h
Night15°C60°F
15°C60°FMorning17°C63°F
17°C63°FAfternoon17°C63°F
17°C63°FEvening19°C67°F
19°C67°F06:0015.5h21:29
TuesdaySE 13 km/h4 m/s8 mph(gusts 27717)59%UV 215hTuesdayClear59%SE 13 km/h4 m/s8 mph (gusts 27717)UV 215h
Tuesday
SE 13 km/h4 m/s8 mph(gusts 27717)59%UV 215h
Tuesday
Clear
59%
SE 13 km/h4 m/s8 mph (gusts 27717)
UV 2
15h
Night13°C56°F
13°C56°FMorning21°C70°F
21°C70°FAfternoon21°C70°F
21°C70°FEvening23°C73°F
23°C73°F06:0115.4h21:28
Extended Forecast (GFS)WednesdayE 11 km/h3 m/s7 mph(gusts 20613)48%15hWednesdayClear48%E 11 km/h3 m/s7 mph (gusts 20613)15h
Wednesday
E 11 km/h3 m/s7 mph(gusts 20613)48%15h
Wednesday
Clear
48%
E 11 km/h3 m/s7 mph (gusts 20613)
15h
Night15°C58°F
15°C58°FMorning25°C76°F
25°C76°FAfternoon25°C76°F
25°C76°FEvening27°C80°F
27°C80°F06:0315.4h21:26
ThursdaySE 11 km/h3 m/s7 mph(gusts 26716)43%15hThursdayClear43%SE 11 km/h3 m/s7 mph (gusts 26716)15h
Thursday
SE 11 km/h3 m/s7 mph(gusts 26716)43%15h
Thursday
Clear
43%
SE 11 km/h3 m/s7 mph (gusts 26716)
15h
Night17°C63°F
17°C63°FMorning28°C83°F
28°C83°FAfternoon28°C83°F
28°C83°FEvening29°C84°F
29°C84°F06:0415.3h21:25
FridayE 11 km/h3 m/s7 mph(gusts 18511)33%15hFridayClear33%E 11 km/h3 m/s7 mph (gusts 18511)15h
Friday
E 11 km/h3 m/s7 mph(gusts 18511)33%15h
Friday
Clear
33%
E 11 km/h3 m/s7 mph (gusts 18511)
15h
Night19°C67°F
19°C67°FMorning30°C86°F
30°C86°FAfternoon30°C86°F
30°C86°FEvening30°C86°F
30°C86°F06:0515.3h21:23
SaturdayE 8 km/h2 m/s5 mph31%15hSaturdayClear31%E 8 km/h2 m/s5 mph15h
Saturday
E 8 km/h2 m/s5 mph31%15h
Saturday
Clear
31%
E 8 km/h2 m/s5 mph
15h
Night20°C68°F
20°C68°FMorning32°C89°F
32°C89°FAfternoon32°C89°F
32°C89°FEvening30°C86°F
30°C86°F06:0715.2h21:22
SundayS 16 km/h5 m/s10 mph29%15hSundayClear29%S 16 km/h5 m/s10 mph15h
Sunday
S 16 km/h5 m/s10 mph29%15h
Sunday
Clear
29%
S 16 km/h5 m/s10 mph
15h
Night22°C72°F
22°C72°FMorning33°C91°F
33°C91°FAfternoon33°C91°F
33°C91°FEvening31°C88°F
31°C88°F06:0815.2h21:20
MondayNW 17 km/h5 m/s10 mph39%15hMondayClear39%NW 17 km/h5 m/s10 mph15h
Monday
NW 17 km/h5 m/s10 mph39%15h
Monday
Clear
39%
NW 17 km/h5 m/s10 mph
15h
Night19°C66°F
19°C66°FMorning30°C86°F
30°C86°FAfternoon30°C86°F
30°C86°FEvening31°C87°F
31°C87°F06:1015.1h21:18
TuesdayN 13 km/h4 m/s8 mph(gusts 22614)42%15hTuesdayClear42%N 13 km/h4 m/s8 mph (gusts 22614)15h
Tuesday
N 13 km/h4 m/s8 mph(gusts 22614)42%15h
Tuesday
Clear
42%
N 13 km/h4 m/s8 mph (gusts 22614)
15h
Night18°C64°F
18°C64°FMorning28°C83°F
28°C83°FAfternoon28°C83°F
28°C83°FEvening31°C87°F
31°C87°F06:1115.1h21:17
WednesdayN 15 km/h4 m/s9 mph(gusts 22614)51%15hWednesdayClear51%N 15 km/h4 m/s9 mph (gusts 22614)15h
Wednesday
N 15 km/h4 m/s9 mph(gusts 22614)51%15h
Wednesday
Clear
51%
N 15 km/h4 m/s9 mph (gusts 22614)
15h
Night17°C62°F
17°C62°FMorning25°C77°F
25°C77°FAfternoon25°C77°F
25°C77°FEvening27°C80°F
27°C80°F06:1315h21:15
Sunrise
05:52
Civil Dawn 05:22
Sunset
21:37
Civil Dusk 22:07
Today vs. seasonal normal
-0.8°C-1.4°F
Roy is located in Wallonia, Belgium. Elevation: 373m. Annual average temperature: 9.1°C. Annual precipitation: 893mm.
Frequently Asked Questions
What is the weather like in Roy today?
Today in Roy, Belgium, the temperature is 15°C with Clear. The high is 21°C and the low is 15°C.
What is the 16-day forecast for Roy?
The 16-day forecast for Roy shows the warmest day is Sunday at 37°C, while the coolest night is Friday at 9°C. 1 day(s) have precipitation expected.
What time is sunrise and sunset in Roy?
In Roy, sunrise is at 05:52 and sunset is at 21:37. Day length is approximately 15h 44m.
How accurate is the weather forecast for Roy?
Our forecasts for Roy use the DWD ICON model, one of the world's most advanced weather prediction systems. Accuracy is typically 85-90% for 1-3 day forecasts. Roy has an annual average temperature of 9.1°C and receives 893mm of precipitation per year.
Last updated: 07/21/2026, 10:00 AM
July climate in Roy
Normals for July: average 17°C (12–22°C), around 80 mm of rain across the month. About 8°C warmer than the annual average of 9.1°C.
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