33of 100

Today's score

Ticks in Ottawa, IL

LaSalle County

Low risk

Tick activity is low right now, but never zero. A quick check after time outdoors is still worth it.

Updated July 11, 2026

Life stage
Nymphs & adults
Forest
26%
Tick species
4 of 5 here

Right now

Latest reading
84°
Temperature
56%
Humidity
0.0"
Recent rain

TickZone for iPhone · launching soon

Quiet in Ottawa today. Know the evening before that changes.

7-day outlook

Risk recalculates daily from the local forecast.

Today
33
Sun
34
Mon
33
Tue
32
Wed
32
Thu
33
Fri
34
Sat
27
Sun
25
Mon
27
Tue
29
Wed
29
Thu
29
Fri
29

What's active right now

Deer-tick nymphs are at their peak alongside dog-tick adults. Midsummer is the busiest stretch: nymphal deer ticks peak in the woods while American dog-tick adults are active in grass and along trails.

Local tick habitat

Ottawa is 48% natural land cover (26% forest, plus open and brushy areas) across its 14.89 sq mi, home to about 18,752 people. That makes it the 15th-most wooded of the 24 towns in LaSalle County. Deer ticks live in wooded areas, along trail edges, and in tall grass: the more of that a town has, the more places ticks can quest.

LaSalle County reports about 7 Lyme cases per 100,000 people a year, the 0th-highest of 0 Midwest counties. That county-level disease pressure, combined with Ottawa's local habitat, sets how high its daily score can climb when the weather and season allow.

Tick control in Ottawa, IL

Do I need tick control in Ottawa?

Today's risk in Ottawa is low (33/100), so there is no urgency. Quiet stretches are actually a good time to book: pros apply barrier treatments before activity climbs, and spring nymph season is when most Lyme transmission happens.

Professional tick control in Ottawa typically means a barrier treatment along the lawn edge, leaf litter, stone walls, and shady borders where ticks wait for a host, applied two to four times a season by a licensed pest control company. It is the single most effective way to cut tick numbers in the part of the yard your family actually uses.

How much does tick control cost in Ottawa?

Most homeowners pay about $100 to $200 per visit for professional tick spraying, or roughly $350 to $600 for a full season of barrier treatments, depending on lot size and how wooded the property is. Quotes are free, so it costs nothing to get a real number for your yard.

Get a free tick control quote

From a vetted local tick exterminator serving Ottawa. No cost, no obligation.

Is it tick season in Ottawa right now?

Yes. Deer-tick nymphs are at their peak alongside dog-tick adults. In Ottawa, today's risk reads low (33/100). Tick activity is low right now, but never zero. A quick check after time outdoors is still worth it.

Nearby towns

Tick risk is local. Check the towns around you.

Stay ahead of ticks in Ottawa

The TickZone iPhone app (launching soon) alerts you the evening before Ottawa's risk spikes, so protection happens before the bite.