Tulsa Mold Forecast - Today, Tomorrow and the Week Ahead
Mold Today
Today (10 October) mold in Tulsa is low; alternaria and cladosporium are low.
Mold Tomorrow
Tomorrow (11 October 2026) levels are similar to today.
7-Day Trend
Over the next week alternaria and cladosporium will decrease.
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Mold Risk
Today - 10 October
| Mold species | Level | Value |
|---|---|---|
| Alternaria | Low | 16/100 |
| Cladosporium | Low | 21/100 |
Tomorrow - 11 October
| Mold species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Alternaria | Low | 13/100 | Steady |
| Cladosporium | Low | 18/100 | Steady |
Local Mold Conditions
Mold in Tulsa grows mostly on the leaves, grass and crop residues in and around the city. Leaves from oaks, elms and pecans collect in yards, gutters and along the wooded banks of the Arkansas River and creeks such as Mingo and Haikey Creek, where they stay damp after storms. Lawns, parks and sports fields add grass clippings, and the farms and pastures around Tulsa leave hay, stubble and dead plant material behind after harvest, which molds readily break down.
Mold in Tulsa follows the warm, humid months. Spore levels rise in spring as temperatures climb and rainy spells soak fallen leaves, and stay high through summer, often peaking from July to October, when Cladosporium and Alternaria thrive on drying grass, harvested fields and early leaf fall in the humid heat. Thunderstorms and wet spells bring sharp spikes a day or two later. Freezing weather from December to February, when January averages around 3°C, keeps outdoor mold in Tulsa at its lowest.
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Resource Hub
Mold forecast neighborhoods 13 neighborhoods
Sports venues in Tulsa 2 sports venues
Local parkruns 1 parkrun
Frequently Asked Questions About Mold in Oklahoma
Why do I still have allergy symptoms after the pollen season?
Allergy symptoms after the main pollen season may be caused by mold spores. Outdoor mold levels can remain high into late summer and autumn, when pollen levels are already falling. Mold allergy can cause symptoms similar to pollen allergy, including sneezing, a runny or blocked nose, itchy eyes, coughing, and wheezing.
What are mold spores and why do they cause allergies?
Mold spores are tiny particles released by fungi into the air. When inhaled, they can trigger an allergic reaction in sensitive people. Common symptoms include sneezing, a runny or blocked nose, itchy or watery eyes, coughing, and wheezing.
When are mold spore levels highest?
Outdoor mold spore levels often increase during warm and humid conditions, particularly when there is plenty of decaying vegetation. Levels can vary considerably with weather, season, vegetation, and location, and some types of mold are more common during particular times of the year, e.g. in the Fall.
How can I reduce my exposure to mold spores?
If you are sensitive to mold, check local mold spore levels and forecasts before spending long periods outdoors. On high-risk days, reducing time around dense vegetation, compost, fallen leaves, and other sources of decaying plant material may help limit exposure.
Understanding the Scale
The 0–100 mold scores represent risk levels, not direct mold measurements. Higher scores indicate higher risk.
Mold
| None | 0 | No or negligible risk of exposure. Pollen/mold exposure is expected to be minimal. |
| Low | 0-25 | Low risk of exposure. Small amounts of pollen or mold spores may be present. |
| Moderate | 25-50 | Moderate risk of exposure. Pollen/mold exposure is expected to be noticeable. |
| High | 50-75 | High risk of exposure. Elevated pollen/mold exposure is expected. |
| Very High | 75-100 | Very high risk of exposure. Pollen/mold exposure is expected to be at or near its highest levels. |
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