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Flat Lake
Guthrie, ND · McHenry County
Right Now
Mostly Clear
Water
66°
Wind
9 mph
SE
Gusts
13 mph
Pressure
29.80
falling
Forecast - Sat, Jul 11
High / Low
97° / 69°
Wind
8 mph
gusts 21 mph
Precip
53%
UV
9
Sunrise
10:53 AM
Sunset
2:39 AM
Every forecast metric for the week ahead, plus best days for fishing, boating, swimming, and paddling.
Quick recommendations based on wind, precip, pressure, solunar, and temperature.
Best for Fishing
Mon, Mon, Jul 13
Mon, Jul 13 scores 58/100: Solunar 5/5, Rain 0%.
Best for Boating
Thu, Thu, Jul 16
Thu, Jul 16 scores 70/100: Wind 14 mph.
Best for Swimming
Sun, Sun, Jul 19
Sun, Jul 19 scores 70/100: Air 86°F, Wind 10 mph.
Best for Paddling
Thu, Thu, Jul 16
Thu, Jul 16 scores 70/100: Wind 14 mph.
Ask about this week:
Swipe to see all 9 days
| Metric | Sat11 | Sun12 | Mon13 | Tue14 | Wed15 | Thu16 | Fri17 | Sat18 | Sun19 |
|---|---|---|---|---|---|---|---|---|---|
| Condition | Clear | Clear | Mostly Clear | Mostly Clear | Windy | Mostly Clear | Partly Cloudy | Mostly Clear | Mostly Clear |
| High / Low | 97°/69° | 103°/73° | 99°/75° | 88°/68° | 85°/64° | 91°/65° | 87°/66° | 85°/60° | 86°/62° |
| Precip | 53% | 0% | 0% | 0% | 0% | 22% | 44% | 27% | 28% |
| Wind | 11 mphgust 21 | 15 mphgust 29 | 16 mphgust 32 | 16 mphgust 23 | 18 mphgust 29 | 14 mphgust 24 | 15 mphgust 18 | 12 mphgust 19 | 10 mphgust 17 |
| Pressure | 29.81" stable | 29.85" rising | 29.89" rising | 30.04" rising | 30.02" falling | 29.88" falling | 29.88" stable | 29.92" rising | 29.85" falling |
| UV Index | 9 | 10 | 8 | 9 | 8 | 8 | 7 | 8 | 8 |
| Sunrise | 10:53 AM | 10:54 AM | 10:55 AM | 10:56 AM | 10:57 AM | 10:58 AM | 10:59 AM | 11:00 AM | 11:01 AM |
| Sunset | 2:39 AM | 2:38 AM | 2:38 AM | 2:37 AM | 2:36 AM | 2:35 AM | 2:34 AM | 2:33 AM | 2:32 AM |
| Bite Rating | 2/5waning crescent | 3/5waning crescent | 5/5NEW | 4/5NEW | 3/5NEW | 3/5NEW | 2/5waxing crescent | 2/5waxing crescent | 2/5waxing crescent |
Today Read
Flat LakeWind read
Calm
8 mph avg
Water read
66°
Warm-water bite
Air range
69° / 97°
today
Precip
53%
watch timing
Today's forecast for Flat Lake has calm wind, 69F to 97F air temperatures, 53% chance of precipitation, and 66F water.
Trip planner
Active temps make wind edges, shallow cover, and feeding windows more important. The planning constraint is weak timing.
Uses 8 live data sources for this lake. Tap a stat or ask a question.
Fishing Forecast
waning crescent
Major
3:25 PM - 5:55 PM
Minor
6:52 AM - 8:22 AM
Detailed temperature readings across your lake.
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Water Temperature History
Current
77°
Jul 19
Low
32°
Mar 24
Average
54°
Last 12 Months
Warmest avg: July (75°F)
Coolest avg: February (36°F)
Rapid warming: March → April (+13°F)
Sharpest cooling: September → October (-16°F)
Wind speed, gusts, and pressure trends for trip timing.
Swipe days or tap points
5am - 4am
Peak Wind
11 mph
1pm
Peak Gust
21 mph
highest gust
Pressure
29.82 inHg
rising
Visibility
10 mi
1% 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
2/5waning crescent
Water at 66°F -- warm-water species active.
Nearby Lakes
FAQ
Flat Lake covers 279.11 acres (0.44 square miles) with a maximum depth of 3.76 meters (~12 feet).
Flat Lake is located in Guthrie, McHenry County, ND. It is accessible to the public for outdoor activities.