Siwiki (Łomża County) — Weather
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17°C63°F· Drizzle · 80% cloud cover
Feels like 18°C64°F · Low 14°C58°F · High 17°C63°F
Wind
6 km/h2 m/s3 mph from NW
Humidity
84%
Pressure
1012 hPa29.89 inHgstable
UV Index
0.0Low
Unsettled — heat
Siwiki, 17°C63°F — rain right now.
⚡ Isolated thunderstorm on Monday, with rain. Total ~11.2 mm. Below the monthly normal (69 mm/month).
Hourly forecast
Detailed forecast for the next 60 hours
TemperaturePrecipitationWind
CAPE (J/kg)Instability Threshold
Now
17°C63°F
63
84
21:00
16°C60°F
53
92
22:00
15°C59°F
42
95
23:00
14°C58°F
42
95
00:00
14°C57°F
42
96
01:00
13°C56°F
42
96
02:00
13°C55°F
42
96
03:00
12°C54°F
32
97
04:00
12°C53°F
32
97
05:00
11°C52°F
32
98
06:00
12°C54°F
42
99
07:00
14°C57°F
32
95
08:00
16°C61°F
53
89
09:00
18°C65°F
74
80
10:00
20°C67°F
85
71
11:00
21°C69°F
106
64
12:00
22°C71°F
117
58
13:00
22°C72°F
106
53
14:00
23°C73°F
117
49
15:00
24°C74°F
106
46
16:00
24°C75°F
117
43
17:00
23°C74°F
117
44
18:00
23°C74°F
106
45
19:00
23°C73°F
74
47
20:00
21°C69°F
53
55
21:00
18°C64°F
53
68
22:00
17°C62°F
53
73
23:00
16°C61°F
53
77
00:00
15°C59°F
53
81
03:00
14°C57°F
64
85
06:00
15°C59°F
85
78
09:00
20°C68°F
117
65
12:00
25°C77°F
149
48
15:00
28°C82°F
128
37
18:00
27°C81°F
32
42
21:00
23°C73°F
64
60
00:00
20°C68°F
43
74
03:00
18°C64°F
21
84
06:00
17°C63°F
0.40.01
64
92
mminkm/hm/smphHumidity %
Daily Forecast
TodayNW 6 km/h2 m/s3 mph(gusts 18511)92%1hTodayDrizzle92%NW 6 km/h2 m/s3 mph (gusts 18511)1h
Today
NW 6 km/h2 m/s3 mph(gusts 18511)92%1h
Today
Drizzle
92%
NW 6 km/h2 m/s3 mph (gusts 18511)
1h
Today — Hourly Forecast
Now
17°C63°F
623
21:00
16°C60°F
513
22:00
15°C59°F
412
23:00
14°C58°F
412
04:3616.1h20:41
TomorrowSW 11 km/h3 m/s7 mph(gusts 28817)72%UV 12hTomorrowFog72%SW 11 km/h3 m/s7 mph (gusts 28817)UV 12h
Tomorrow
SW 11 km/h3 m/s7 mph(gusts 28817)72%UV 12h
Tomorrow
Fog
72%
SW 11 km/h3 m/s7 mph (gusts 28817)
UV 1
2h
Tomorrow — Hourly Forecast
00:00
14°C57°F
412
01:00
13°C56°F
412
02:00
13°C55°F
412
03:00
12°C54°F
312
04:00
12°C53°F
312
05:00
11°C52°F
312
06:00
12°C54°F
412
07:00
14°C57°F
312
08:00
16°C61°F
513
09:00
18°C65°F
724
10:00
20°C67°F
825
11:00
21°C69°F
1036
12:00
22°C71°F
1137
13:00
22°C72°F
1036
14:00
23°C73°F
1137
15:00
24°C74°F
1036
16:00
24°C75°F
1137
17:00
23°C74°F
1137
18:00
23°C74°F
1036
19:00
23°C73°F
724
20:00
21°C69°F
523
21:00
18°C64°F
513
22:00
17°C62°F
513
23:00
16°C61°F
513
04:3816h20:40
SundayS 14 km/h4 m/s9 mph(gusts 34921)62%UV 15hSundayDrizzle62%S 14 km/h4 m/s9 mph (gusts 34921)UV 15h
Sunday
S 14 km/h4 m/s9 mph(gusts 34921)62%UV 15h
Sunday
Drizzle
62%
S 14 km/h4 m/s9 mph (gusts 34921)
UV 1
5h
Sunday — Forecast Overview
00:00
15°C59°F
513
03:00
14°C57°F
624
06:00
15°C59°F
825
09:00
20°C68°F
1137
12:00
25°C77°F
1449
15:00
28°C82°F
1238
18:00
27°C81°F
312
21:00
23°C73°F
624
04:3916h20:38
Monday11.2 mm0.44 in· heavyW 16 km/h4 m/s10 mph(gusts 391124)84%UV 12hMondayLight rain84%W 16 km/h4 m/s10 mph (gusts 391124)11.2 mm0.44 inUV 12h
Monday
11.2 mm0.44 in· heavyW 16 km/h4 m/s10 mph(gusts 391124)84%UV 12h
Monday
Light rain
84%
W 16 km/h4 m/s10 mph (gusts 391124)
11.2 mm0.44 in
UV 1
2h
Monday — Forecast Overview
00:00
20°C68°F
413
03:00
18°C64°F
211
06:00
17°C63°F
624
09:00
17°C62°F
925
12:00
19°C67°F
1036
15:00
19°C67°F
1036
18:00
17°C62°F
1449
21:00
14°C57°F
1348
04:4115.9h20:37
TuesdayW 27 km/h7 m/s17 mph(gusts 461329)70%UV 113hTuesdayDrizzle70%W 27 km/h7 m/s17 mph (gusts 461329)UV 113h
Tuesday
W 27 km/h7 m/s17 mph(gusts 461329)70%UV 113h
Tuesday
Drizzle
70%
W 27 km/h7 m/s17 mph (gusts 461329)
UV 1
13h
Tuesday — Forecast Overview
00:00
12°C53°F
1348
03:00
10°C50°F
16410
06:00
11°C51°F
18511
09:00
16°C61°F
26716
12:00
19°C67°F
26716
15:00
19°C66°F
24715
18:00
19°C67°F
17511
21:00
16°C62°F
925
04:4315.9h20:35
WednesdayNW 11 km/h3 m/s7 mph(gusts 26716)77%UV 112hWednesdayPartly cloudy77%NW 11 km/h3 m/s7 mph (gusts 26716)UV 112h
Wednesday
NW 11 km/h3 m/s7 mph(gusts 26716)77%UV 112h
Wednesday
Partly cloudy
77%
NW 11 km/h3 m/s7 mph (gusts 26716)
UV 1
12h
Night13°C55°F
13°C55°FMorning19°C67°F
19°C67°FAfternoon19°C67°F
19°C67°FEvening20°C68°F
20°C68°F04:4415.8h20:33
ThursdayN 7 km/h2 m/s4 mph(gusts 17510)65%UV 114hThursdayClear65%N 7 km/h2 m/s4 mph (gusts 17510)UV 114h
Thursday
N 7 km/h2 m/s4 mph(gusts 17510)65%UV 114h
Thursday
Clear
65%
N 7 km/h2 m/s4 mph (gusts 17510)
UV 1
14h
Night12°C54°F
12°C54°FMorning22°C71°F
22°C71°FAfternoon22°C71°F
22°C71°FEvening21°C70°F
21°C70°F04:4615.8h20:32
FridayE 4 km/h1 m/s3 mph(gusts 1036)56%UV 214hFridayPartly cloudy56%E 4 km/h1 m/s3 mph (gusts 1036)UV 214h
Friday
E 4 km/h1 m/s3 mph(gusts 1036)56%UV 214h
Friday
Partly cloudy
56%
E 4 km/h1 m/s3 mph (gusts 1036)
UV 2
14h
Night14°C58°F
14°C58°FMorning24°C76°F
24°C76°FAfternoon24°C76°F
24°C76°FEvening24°C74°F
24°C74°F04:4715.7h20:30
Extended Forecast (GFS)SaturdayS 17 km/h5 m/s10 mph(gusts 461329)44%16hSaturdayClear44%S 17 km/h5 m/s10 mph (gusts 461329)16h
Saturday
S 17 km/h5 m/s10 mph(gusts 461329)44%16h
Saturday
Clear
44%
S 17 km/h5 m/s10 mph (gusts 461329)
16h
Night16°C61°F
16°C61°FMorning33°C91°F
33°C91°FAfternoon33°C91°F
33°C91°FEvening28°C83°F
28°C83°F04:4915.7h20:28
SundayS 22 km/h6 m/s14 mph(gusts 401125)36%16hSundayClear36%S 22 km/h6 m/s14 mph (gusts 401125)16h
Sunday
S 22 km/h6 m/s14 mph(gusts 401125)36%16h
Sunday
Clear
36%
S 22 km/h6 m/s14 mph (gusts 401125)
16h
Night23°C74°F
23°C74°FMorning33°C92°F
33°C92°FAfternoon33°C92°F
33°C92°FEvening29°C85°F
29°C85°F04:5115.6h20:26
MondayS 18 km/h5 m/s11 mph(gusts 461328)32%16hMondayClear32%S 18 km/h5 m/s11 mph (gusts 461328)16h
Monday
S 18 km/h5 m/s11 mph(gusts 461328)32%16h
Monday
Clear
32%
S 18 km/h5 m/s11 mph (gusts 461328)
16h
Night26°C79°F
26°C79°FMorning35°C94°F
35°C94°FAfternoon35°C94°F
35°C94°FEvening30°C85°F
30°C85°F04:5215.5h20:25
TuesdayNW 17 km/h5 m/s11 mph(gusts 461328)44%15hTuesdayClear44%NW 17 km/h5 m/s11 mph (gusts 461328)15h
Tuesday
NW 17 km/h5 m/s11 mph(gusts 461328)44%15h
Tuesday
Clear
44%
NW 17 km/h5 m/s11 mph (gusts 461328)
15h
Night26°C78°F
26°C78°FMorning33°C91°F
33°C91°FAfternoon33°C91°F
33°C91°FEvening27°C80°F
27°C80°F04:5415.5h20:23
WednesdayE 16 km/h5 m/s10 mph(gusts 34921)52%15hWednesdayClear52%E 16 km/h5 m/s10 mph (gusts 34921)15h
Wednesday
E 16 km/h5 m/s10 mph(gusts 34921)52%15h
Wednesday
Clear
52%
E 16 km/h5 m/s10 mph (gusts 34921)
15h
Night21°C69°F
21°C69°FMorning30°C86°F
30°C86°FAfternoon30°C86°F
30°C86°FEvening29°C84°F
29°C84°F04:5615.4h20:21
Thursday1.3 mm0.05 inN 27 km/h7 m/s17 mph(gusts 491430)60%15hThursdayDrizzle60%N 27 km/h7 m/s17 mph (gusts 491430)1.3 mm0.05 in15h
Thursday
1.3 mm0.05 inN 27 km/h7 m/s17 mph(gusts 491430)60%15h
Thursday
Drizzle
60%
N 27 km/h7 m/s17 mph (gusts 491430)
1.3 mm0.05 in
15h
Night25°C76°F
25°C76°FMorning31°C88°F
31°C88°FAfternoon31°C88°F
31°C88°FEvening23°C74°F
23°C74°F04:5715.4h20:19
Friday5.2 mm0.20 in· heavyW 17 km/h5 m/s11 mph(gusts 361022)79%8hFridayLight rain79%W 17 km/h5 m/s11 mph (gusts 361022)5.2 mm0.20 in8h
Friday
5.2 mm0.20 in· heavyW 17 km/h5 m/s11 mph(gusts 361022)79%8h
Friday
Light rain
79%
W 17 km/h5 m/s11 mph (gusts 361022)
5.2 mm0.20 in
8h
Night16°C61°F
16°C61°FMorning17°C62°F
17°C62°FAfternoon17°C62°F
17°C62°FEvening15°C58°F
15°C58°F04:5915.3h20:17
Saturday0.9 mm0.03 inNW 21 km/h6 m/s13 mph(gusts 391124)67%14hSaturdayLight rain67%NW 21 km/h6 m/s13 mph (gusts 391124)0.9 mm0.03 in14h
Saturday
0.9 mm0.03 inNW 21 km/h6 m/s13 mph(gusts 391124)67%14h
Saturday
Light rain
67%
NW 21 km/h6 m/s13 mph (gusts 391124)
0.9 mm0.03 in
14h
Night14°C56°F
14°C56°FMorning21°C69°F
21°C69°FAfternoon21°C69°F
21°C69°FEvening14°C57°F
14°C57°F05:0115.2h20:15
Sunrise
04:37
Civil Dawn 04:07
Sunset
20:41
Civil Dusk 21:11
Today vs. seasonal normal
-6.9°C-12.3°F
Siwiki is located in Podlaskie Voivodeship, Poland. Elevation: 107m. Annual average temperature: 7.6°C. Annual precipitation: 493mm.
Frequently Asked Questions
What is the weather like in Siwiki today?
Today in Siwiki, Poland, the temperature is 17°C with Drizzle. The high is 17°C and the low is 14°C.
What is the 16-day forecast for Siwiki?
The 16-day forecast for Siwiki shows the warmest day is Monday at 38°C, while the coolest night is Tuesday at 10°C. 7 day(s) have precipitation expected.
What time is sunrise and sunset in Siwiki?
In Siwiki, sunrise is at 04:37 and sunset is at 20:41. Day length is approximately 16h 4m.
How accurate is the weather forecast for Siwiki?
Our forecasts for Siwiki 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. Siwiki has an annual average temperature of 7.6°C and receives 493mm of precipitation per year.
Last updated: 07/24/2026, 08:00 PM
July climate in Siwiki
Normals for July: average 19°C (13–24°C), around 69 mm of rain across the month. About 11°C warmer than the annual average of 7.6°C.
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