Bigfork Township Mold Forecast - Today, Tomorrow and the Week Ahead
Mold Today
Today (6 October) mold in Bigfork Township is moderate; cladosporium is moderate; alternaria is low.
Mold Tomorrow
Tomorrow (7 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 - 6 October
| Mold species | Level | Value |
|---|---|---|
| Alternaria | Low | 11/100 |
| Cladosporium | Moderate | 36/100 |
Tomorrow - 7 October
| Mold species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Alternaria | Low | 8/100 | Steady |
| Cladosporium | Moderate | 34/100 | Decreasing |
Local Mold Conditions
With woodland on around 90% of the land, the area around the center of Bigfork Township offers mold plenty of organic material to grow on. The forest floor holds fallen leaves, bark and decaying wood that stay damp and feed mold and other fungi. Near a stream or river, wet soil and fallen plant matter create especially favorable spots for mold.
Most outdoor mold spores here are Cladosporium, which grows on the woodland litter from May to September and is most plentiful in July, when temperatures average 21°C. Alternaria needs more warmth and is most abundant in July. The cold months from November to April, with averages below 5°C, bring a long break from outdoor mold.
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Frequently Asked Questions About Mold in Minnesota
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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