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Last update: 20:00, 13 Aug 2026
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Olesno sits on the Stobrawa river, an 80.29km right tributary of the Oder that also flows through Kluczbork and Stobrawa village downstream, at around 240m elevation surrounded by forest in the Olesno Upland. An Olesno rain radar matters because the region sits in Opolskie Voivodeship, where Storm Boris brought heavy rain in September 2024 alongside Dolnośląskie, Śląskie, and Małopolskie — a hyperlocal radar is how a resident sees that kind of system building over the Stobrawa valley before the regional headline catches up.
The mechanism runs along the river. Stobrawa flooding is a documented regional pathway through Olesno and downstream Kluczbork, and the forested Olesno Upland terrain, distinct from the Upper Oder valley floor further south, channels rain differently across the two towns. A single Opolskie-wide forecast can miss which side of the Stobrawa valley a heavy-rain system is actually crossing.
RainViewer draws its Olesno feed from IMGW, refreshed every 5 minutes, so the map reflects the latest radar scan rather than a forecast written hours earlier. What a live map shows and a forecast cannot: whether a rain system over the Stobrawa valley is building toward Olesno's wooden St. Anne's Church or tracking downstream toward Kluczbork.
Storm Boris's September 2024 rain across Opolskie Voivodeship marked the sharpest recent example of the Stobrawa valley's late-summer storm exposure.
Olesno's forested upland terrain at around 240m elevation shifts the local rain pattern from the flatter Stobrawa valley floor downstream, especially in the transition months.
Regional Opolskie precipitation, typically 550-700mm a year, settles into its lowest activity through the winter months.
DK11 connects Olesno to Kluczbork and has recorded a documented 6-vehicle pile-up on this heavily trafficked stretch, a route sensitive to weather-driven visibility and road conditions. Checking the radar before a drive shows whether a rain system is crossing that stretch of road.
Stobrawa flooding is a documented regional pathway through Olesno and downstream Kluczbork, and Storm Boris added renewed flood exposure to the wider Opolskie Voivodeship in September 2024. Residents near the river can track the radar rather than wait for a district-wide bulletin.
Olesno's wooden St. Anne's Church is a documented local landmark drawing visitors to the town center. Checking the radar before a visit shows whether a Stobrawa-valley storm system is clearing the area.
Neighboring Kluczbork's historic industrial base of a brewery, sugar factory, spinning mill, brickworks, and hydro-electric plant on the Stobrawa reflects the shared industrial heritage of the Olesno-Kluczbork corridor. A 5-minute radar update helps workers moving between the two towns time their trips around the rain.
RainViewer draws radar data for Poland from the Institute of Meteorology and Water Management (IMGW) via danepubliczne.imgw.pl, updated every 5 minutes. Coverage is comprehensive across the country. Olesno sits close enough to Kluczbork and the wider Stobrawa valley that rain systems moving along the river corridor are visible on the same map before they reach town.
The fastest way to know is a live hyperlocal radar, since Olesno sits on the Stobrawa river where a heavy-rain system can build over the forested upland with little warning. RainViewer pulls fresh IMGW radar scans every 5 minutes, showing current conditions instead of a forecast written hours earlier.
Olesno's wooden St. Anne's Church sits in the town center, exposed to the same Stobrawa-valley storm systems that Opolskie Voivodeship saw during Storm Boris in September 2024. Checking the radar before a visit shows whether a system is clearing the area or building, which a general forecast for the day cannot.
DK11 has recorded a documented 6-vehicle pile-up on the heavily trafficked stretch between Olesno and Kluczbork, a route sensitive to weather-driven visibility and road conditions. Checking the live radar before the drive shows which section of the road a rain system is currently crossing.
Yes — Stobrawa river flooding is a documented regional pathway through Olesno and downstream through Kluczbork, and Storm Boris brought renewed flooding to the wider Opolskie Voivodeship in September 2024. Residents near the river should track the radar closely once a heavy-rain system moves into the valley.
Regional Opolskie precipitation typically runs 550-700mm a year, with the sharpest recent exposure coming from Storm Boris's late-summer rain in September 2024. Visitors planning time around St. Anne's Church or the DK11 corridor should watch the radar closely through the August-September window.
Olesno sits in the forested Olesno Upland at around 240m elevation, distinct from the flatter Upper Oder valley floor to the south, so the Stobrawa's rain pattern can differ sharply between Olesno and downstream Kluczbork. A general forecast cannot show that split — only a live radar tracking the system's actual path can.
Yes — RainViewer's hyperlocal radar for Olesno draws directly from IMGW, refreshing every 5 minutes with new scans instead of a periodic forecast update. The map also covers Kluczbork and the wider Stobrawa valley, so approaching systems are visible early.
Yes — RainViewer's rain alerts can be set for a specific point like the DK11 corridor or St. Anne's Church, so drivers and residents get a notification as a system approaches instead of checking the map manually. That advance window is what lets a drive to Kluczbork get timed around the rain.
DK11 commuters between Olesno and Kluczbork and Stobrawa riverside residents both depend on knowing whether a rain system is building over the valley or already moving downstream. Storm Boris showed in September 2024 how quickly a regional system can turn the Stobrawa valley's usual pattern into a flood pathway.
A generic forecast says scattered showers for the Olesno district this week. RainViewer's live hyperlocal radar shows it is already raining over the Stobrawa valley while DK11 stays clear — that is the call a driver makes every time a late-summer system builds.
Track rain in Olesno — free Upgrade to Essential for alerts, forecasts, and full radar history
See whether a system over the Stobrawa valley clears DK11 or settles in for the next two hours.
Set an alert for DK11 or the Stobrawa riverside and get notified before a system reaches it.
See whether a front is tracking in toward Olesno from Opole or breaking apart before it arrives.
Review the last 48 hours to see how a late-summer storm system built and moved along the Stobrawa valley.
Track DK11, the Stobrawa riverside, and Kluczbork at the same time.