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Mt. Olive, IL · Macoupin County
Right Now
Mostly Clear
Water
81°
Wind
2 mph
ENE
Gusts
3 mph
Pressure
30.14
steady
Forecast - Wed, Jun 24
High / Low
82° / 63°
Wind
5 mph
gusts 15 mph
Precip
53%
UV
6
Sunrise
10:34 AM
Sunset
1:29 AM
Every forecast metric for the week ahead — plus AI-picked best days for fishing, boating, swimming, and paddling.
Instant recommendations based on wind, precip, pressure, solunar, and temperature.
Best for Fishing
Tue, Tue, Jun 30
Tue, Jun 30 scores 78/100 — Solunar 5/5, Wind 8 mph.
Best for Boating
Wed, Wed, Jul 1
Wed, Jul 1 scores 85/100 — Wind 6 mph, Rain 0%.
Best for Swimming
Mon, Mon, Jun 29
Mon, Jun 29 scores 75/100 — Air 92°F, Rain 0%.
Best for Paddling
Wed, Wed, Jul 1
Wed, Jul 1 scores 85/100 — Wind 6 mph, Rain 0%.
Ask the AI assistant about this week:
Swipe to see all 9 days
| Metric | Wed24 | Thu25 | Fri26 | Sat27 | Sun28 | Mon29 | Tue30 | Wed1 | Thu2 |
|---|---|---|---|---|---|---|---|---|---|
| Condition | Drizzle | Thunderstorms | Rain | Thunderstorms | Thunderstorms | Partly Cloudy | Mostly Clear | Clear | Clear |
| High / Low | 82°/63° | 83°/67° | 78°/68° | 84°/68° | 92°/72° | 92°/75° | 93°/76° | 95°/76° | 94°/79° |
| Precip | 53% | 77% | 96% | 80% | 56% | 0% | 39% | 0% | 53% |
| Wind | 9 mphgust 15 | 6 mphgust 12 | 10 mphgust 16 | 8 mphgust 14 | 9 mphgust 17 | 9 mphgust 17 | 8 mphgust 14 | 6 mphgust 10 | 5 mphgust 9 |
| Pressure | 30.04" stable | 29.95" falling | 29.90" falling | 29.89" stable | 29.86" falling | 29.94" rising | 29.98" rising | 30.02" rising | 30.06" rising |
| UV Index | 6 | 6 | 5 | 5 | 9 | 7 | 9 | 11 | 9 |
| Sunrise | 10:34 AM | 10:34 AM | 10:34 AM | 10:35 AM | 10:35 AM | 10:36 AM | 10:36 AM | 10:37 AM | 10:37 AM |
| Sunset | 1:29 AM | 1:29 AM | 1:29 AM | 1:29 AM | 1:29 AM | 1:29 AM | 1:29 AM | 1:29 AM | 1:28 AM |
| Bite Rating | 3/5first quarter | 2/5waxing gibbous | 2/5waxing gibbous | 3/5waxing gibbous | 2/5waxing gibbous | 5/5FULL | 5/5FULL | 3/5FULL | 2/5waning gibbous |
Today Read
Old Mt. Olive ReservoirWind read
Calm
5 mph avg
Water read
81°
Warm-water bite
Air range
63° / 82°
today
Precip
53%
watch timing
Today's forecast for Old Mt. Olive Reservoir has calm wind, 63F to 82F air temperatures, 53% chance of precipitation, and 81F water.
AI read · today
Warm water pushes the plan toward oxygen, shade, depth changes, and low light. The planning constraint is finding the right window.
Reads 8 live data sources for this lake — tap a stat or ask anything to see its work.
Fishing Forecast
first quarter
Major
1:39 AM - 4:09 AM
Minor
8:33 PM - 10:03 PM
Detailed temperature readings across your lake.
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Water Temperature History
Current
82°
Jun 28
Low
32°
Nov 30
Average
63°
Last 12 Months
Warmest avg: July (83°F)
Coolest avg: January (33°F)
Rapid warming: March → April (+16°F)
Sharpest cooling: October → November (-19°F)
Wind speed, gusts, and pressure trends for trip timing.
Swipe days or tap points
5am - 4am
Peak Wind
9 mph
4pm
Peak Gust
15 mph
highest gust
Pressure
30.14 inHg
steady
Visibility
13 mi
26% clouds
Tap chart for details, swipe left or right for different days.Tap chart for details • Swipe for different days
Pressure stability helps plan windows
Tap chart points for pressure details
Nearby Lakes
Fishing Forecast
3/5first quarter
Water at 81°F -- warm-water species active.
Nearby Lakes
FAQ
Old Mt. Olive Reservoir covers 31.00 acres (0.05 square miles)
Old Mt. Olive Reservoir is located in Mt. Olive, Macoupin County, IL. It is accessible to the public for outdoor activities.