Weather in Omsk - 14-day forecast

Detailed weather forecast for Omsk, Russia: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.

Forecast for the next days in Omsk

today🌧️ 23°💧 2 mm

Sun☁️ 25°💧 0.6 mm

Mon☁️ 29°💧 0.5 mm

Tue🌤️ 28°💧 2.1 mm

Wed☁️ 26°💧 0.3 mm

Thu🌧️ 25°💧 0.3 mm

Fri🌧️ 22°💧 1 mm

Sat☁️ 21°💧 1.4 mm

Forecast vs 1991-2020 climate normal

How does the current forecast compare with normal?

We compare the coming days with weather usually observed at this time of year.

NASA POWER

Monday 7 Sept in Omsk, the forecast high is 29°C. Typical daytime temperatures at this time of year range from 14°C to 24°C, so it will be exceptionally warm. It is warmer than 96% of similar days.

Saturday 5 Sept

23°Cwarmer than usual

usually 15°C–24°C

warmer than 76% of similar days

night: exceptionally warm rain: more rain than usual wind: typical

Sunday 6 Sept

25°Cwarmer than usual

usually 14°C–24°C

warmer than 85% of similar days

night: exceptionally warm rain: typical rainfall wind: lighter than usual

Monday 7 Sept

29°Cexceptionally warm

usually 14°C–24°C

warmer than 96% of similar days

night: exceptionally warm rain: typical rainfall wind: lighter than usual

Tuesday 8 Sept

28°Cexceptionally warm

usually 14°C–23°C

warmer than 95% of similar days

night: exceptionally warm rain: more rain than usual wind: typical

Wednesday 9 Sept

26°Cexceptionally warm

usually 13°C–23°C

warmer than 91% of similar days

night: exceptionally warm rain: typical rainfall wind: stronger than usual

Thursday 10 Sept

25°Cexceptionally warm

usually 13°C–22°C

warmer than 90% of similar days

night: exceptionally warm rain: typical rainfall wind: lighter than usual

Friday 11 Sept

22°Cwarmer than usual

usually 13°C–22°C

warmer than 81% of similar days

night: exceptionally warm rain: more rain than usual wind: lighter than usual

How warm was this week in previous years?

Each bar shows the average daily high during the same 7-day period in each year.

swipe to see more years →

cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 19°C by day. The coolest year was 1983 (12°C) and the warmest was 2000 (26°C). The current forecast averages 25°C - higher than in 96% of historical years.

Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.

14-day forecast - Omsk

Omsk - 14-day weather forecast infographic

Omsk 30 & 45-day weather - long-range outlook

Next 16 days · forecast

21°

around 18° at night · days with rain: 6

Weeks 3-4 · avg for September

15°

around 5° at night · rain chance 51%

Weeks 5-7 · avg for October

5°

around -2° at night · rain chance 42%

The 30 & 45-day outlook for Omsk: the next 16 days are a numerical forecast updated daily - on average 21° by day and 18° at night. Further out we rely on multi-year climate averages: around 15° in September, and about 5° in October. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Omsk

Saturday5 September 2026

🌧️23°light rain

sunrise 06:19 · sunset 19:51 · night 18° · evening 22° · rain 1.97 mm · humidity 47% · wind 6 m/s · clouds 57%

Sunday6 September 2026

☁️25°overcast clouds

sunrise 06:21 · sunset 19:48 · night 19° · evening 23° · rain 0.63 mm · humidity 33% · wind 4 m/s · clouds 100%

Monday7 September 2026

☁️29°overcast clouds

sunrise 06:23 · sunset 19:45 · night 21° · evening 26° · rain 0.49 mm · humidity 22% · wind 5 m/s · clouds 100%

Tuesday8 September 2026

🌤️28°a few clouds

sunrise 06:25 · sunset 19:43 · night 21° · evening 27° · rain 2.13 mm · humidity 27% · wind 6 m/s · clouds 12%

Wednesday9 September 2026

☁️26°broken clouds

sunrise 06:27 · sunset 19:40 · night 22° · evening 27° · rain 0.25 mm · humidity 27% · wind 8 m/s · clouds 64%

Thursday10 September 2026

🌧️25°light rain

sunrise 06:28 · sunset 19:38 · night 21° · evening 25° · rain 0.27 mm · humidity 32% · wind 5 m/s · clouds 86%

Friday11 September 2026

🌧️22°light rain

sunrise 06:30 · sunset 19:35 · night 17° · evening 22° · rain 1.01 mm · humidity 51% · wind 5 m/s · clouds 97%

Saturday12 September 2026

☁️21°overcast clouds

sunrise 06:32 · sunset 19:33 · night 20° · evening 22° · rain 1.43 mm · humidity 48% · wind 9 m/s · clouds 92%

Sunday13 September 2026

🌧️15°moderate rain

sunrise 06:34 · sunset 19:30 · night 14° · evening 14° · rain 23.82 mm · humidity 83% · wind 6 m/s · clouds 95%

Monday14 September 2026

🌧️19°light rain

sunrise 06:36 · sunset 19:28 · night 18° · evening 22° · rain 0.13 mm · humidity 60% · wind 5 m/s · clouds 39%

Tuesday15 September 2026

☁️23°broken clouds

sunrise 06:38 · sunset 19:25 · night 20° · evening 24° · rain 0.88 mm · humidity 40% · wind 6 m/s · clouds 62%

Wednesday16 September 2026

☁️23°overcast clouds

sunrise 06:40 · sunset 19:22 · night 19° · evening 22° · rain 2.39 mm · humidity 39% · wind 7 m/s · clouds 95%

Thursday17 September 2026

🌧️19°light rain

sunrise 06:41 · sunset 19:20 · night 14° · evening 15° · rain 0.4 mm · humidity 47% · wind 4 m/s · clouds 100%

Friday18 September 2026

🌧️14°light rain

sunrise 06:43 · sunset 19:17 · night 15° · evening 17° · rain 0.49 mm · humidity 42% · wind 6 m/s · clouds 100%

Saturday19 September 2026

☁️13°overcast clouds

sunrise 06:45 · sunset 19:15 · night 11° · evening 13° · humidity 55% · wind 5 m/s · clouds 100%

Sunday20 September 2026

🌧️11°light rain

sunrise 06:47 · sunset 19:12 · night 11° · evening 12° · rain 0.39 mm · humidity 58% · wind 4 m/s · clouds 100%

UV index in Omsk - is it safe to sunbathe?

Today the UV index in Omsk is 5 (moderate) - unprotected fair skin can burn in about 45 minutes. Seek shade around midday. SPF 30+, sunglasses and a hat for longer stays.

Air quality and smog in Omsk

Air quality in Omsk is currently good. Fine particulate PM2.5: 14.6 µg/m³, PM10: 15.3 µg/m³.

City	PM2.5 (µg/m³)	PM10 (µg/m³)	Air quality
Omsk	14.6	15.3	good

Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-09-05, 08:00).

Omsk weather through the year

Warmest, driest months on average: May, June, July, August.

Upcoming public holidays in Russia: Unity Day — 4 November · New Year's Day — 1 January · New Year holiday — 2 January.

Nearby and related places

PetropavlovskPavlodarAstanaKaragandyNovosibirskKostanayBarnaulPermSaint PetersburgMoscowSamaraChelyabinsk

FAQ - Omsk weather

What is the weather like in Omsk today?

Today it is about 23° during the day and 18° at night, light rain.

How far ahead can I check the forecast for Omsk?

This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.