Rosenheim: First sun, then thunderstorms – this is what the weather will be like in the next three days

Rosenheim starts Tuesday in a friendly way: In the morning, 9 degrees and a sunny, cloudless start are expected. Over the course of the day, more clouds will move in, and the temperature will rise significantly again – up to 25 degrees are possible. By late evening, the likelihood of thunderstorms will noticeably increase; from Wednesday, cooler, mostly heavily overcast weather will prevail – and on Thursday it will get even fresher.

Tuesday: Sunny morning, later increasingly cloudy

Tuesday begins in Rosenheim with sun at 9 degrees. During the day it will become cloudier, but it will initially remain mild to warm. The maximum value mentioned is 25 degrees. There may also be occasional moderate gusts, blowing from the northeast or southwest depending on the location.

Later weather change on Tuesday evening: Thunderstorms possible

Late Tuesday evening, thunderstorms are expected with heavy cloud cover. The forecast overview mentions several time periods with high probabilities of precipitation (including 90 percent and 75 percent) – with comparatively manageable amounts of 1.2 to 2.6 l/m².

Such situations are typical for a "tipping point" after a warm day: When moist warm air is more easily lifted in the evening, stronger cumulus clouds can quickly develop into thunderstorm clouds. Precursors are often a marked darkening and freshening gusts at the approaching thunderstorm front – especially in the evening, it is worth taking a quick look at the radar before staying outside for a longer time.

Fog may also form during the night. The weather character thus changes within a few hours: from a calm, sunny start to a more unsettled evening and a wetter night.

Wednesday and Thursday: Less warmth, more clouds, more wind

On Wednesday, it will probably remain almost overcast in Rosenheim. At the same time, the temperature will drop somewhat compared to Tuesday: The daily maximum is mentioned as 22 degrees, with persistently heavy cloud cover.

On Thursday, the cooling continues. 17 degrees are expected, an overcast sky and fresher gusts. After the warm Tuesday, the weather in the middle of the week will thus feel significantly more subdued – less sun, more gray phases and overall a rather cool impression.

Pollen in Bavaria: Tuesday still noticeable for birch, Wednesday overall calmer

For parts of Bavaria – including Upper Bavaria – a low to moderate load is expected on Tuesday, especially for birch pollen. Ash and grass pollen occur in small amounts. No load is mentioned for ragweed, mugwort, alder, hazel, and rye.

The situation relaxes on Wednesday: For birch and ash, no to low load is expected, grasses remain low. For ragweed, mugwort, alder, hazel, and rye, no load is still indicated. For allergy sufferers, Tuesday is thus the more relevant day, while it should become somewhat easier overall by midweek.

All in all, Rosenheim brings a friendly Tuesday with a late change. Those who are out in the evening should keep an eye on thunderstorm development; from Wednesday it will become noticeably cooler and much cloudier.