Moderate Activity 🌒 12% Updated live

Aurora Forecast for
Spring Grove Tonight

Current northern lights conditions for Spring Grove, Illinois, United States. Latitude 42.4°N · AACGM-v2 magnetic latitude 51.5°N.

Quick Summary: The estimated northern lights outlook for Spring Grove peaks at 0% over the next 24 hours. No suitable viewing window.

Aurora forecast

0%

Estimated

Highest estimate · next 24 hours

Viewing window

No suitable viewing window

America/Chicago

Kp index

3.33

Moderate

Planetary geomagnetic activity

Cloud cover

100%

Overcast

Current sky visibility

Aurora

Tonight's Verdict

Low aurora probability in Spring Grove tonight. Check back tomorrow for updated conditions.

Hourly Forecast · Estimated

19
19:00 — 0%
20:00 — 0%
21:00 — 0%
22:00 — 0%
23:00 — 0%
00:00 — 0%
01
01:00 — 0%
02:00 — 0%
03:00 — 0%
04:00 — 0%
05:00 — 0%
06:00 — 0%
07
07:00 — 0%
08:00 — 0%
09:00 — 0%
10:00 — 0%
11:00 — 0%
12:00 — 0%
13
13:00 — 0%
14:00 — 0%
15:00 — 0%
16:00 — 0%
17:00 — 0%
18:00 — 0%
19:00 UTC01:00 UTC07:00 UTC13:00 UTC18:00 UTC
Time (UTC)Estimated (%)
2026-10-14T19:00:00.000Z0%
2026-10-14T20:00:00.000Z0%
2026-10-14T21:00:00.000Z0%
2026-10-14T22:00:00.000Z0%
2026-10-14T23:00:00.000Z0%
2026-10-15T00:00:00.000Z0%
2026-10-15T01:00:00.000Z0%
2026-10-15T02:00:00.000Z0%
2026-10-15T03:00:00.000Z0%
2026-10-15T04:00:00.000Z0%
2026-10-15T05:00:00.000Z0%
2026-10-15T06:00:00.000Z0%
2026-10-15T07:00:00.000Z0%
2026-10-15T08:00:00.000Z0%
2026-10-15T09:00:00.000Z0%
2026-10-15T10:00:00.000Z0%
2026-10-15T11:00:00.000Z0%
2026-10-15T12:00:00.000Z0%
2026-10-15T13:00:00.000Z0%
2026-10-15T14:00:00.000Z0%
2026-10-15T15:00:00.000Z0%
2026-10-15T16:00:00.000Z0%
2026-10-15T17:00:00.000Z0%
2026-10-15T18:00:00.000Z0%
How to read this forecast

The next 24 hours use calculated local darkness and a retained aurora activity heuristic. They are not a measured or statistically calibrated chance of seeing aurora. Aggregate cloud cover is held constant unless a timed weather forecast is available.

Generated 2026-10-14T18:26:10.876Z. Kp: fresh · observation 2026-10-14T18:00:00.000Z. Cloud: fresh · cache refresh 2026-10-14T17:50:21.506+00:00. Overall model: estimated.

Window: No suitable viewing window. A dash marks a missing input; zero means the model found no visibility under the supplied conditions.

27-Day Forecast

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Oct 15

Kp Index •••
Probability •••
Cloud Cover •••

Oct 16

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Probability •••
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Oct 17

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About Aurora Viewing in Spring Grove

Spring Grove, United States, is at 42.4°N. Aurora visibility depends on local conditions as well as geomagnetic activity. Its verified magnetic latitude is 51.5°N; Kp 7–9 is an approximate screening range, not a visibility probability. Even favourable activity can be hidden by clouds or daylight. Find a dark, open northern horizon and check the sky before travelling.

Follow forecasts, cloud maps and aurora alerts for Spring Grove in Aurora Hunt, then confirm darkness, local cloud and access before going outside.

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Frequently Asked Questions

Can you see aurora in Spring Grove tonight?
Aurora visibility in Spring Grove depends on geomagnetic activity (Kp index), cloud cover, and darkness. At 42.4°N latitude, Spring Grove typically needs a Kp index of 7–9 for visible aurora. Check the real-time forecast above for tonight's conditions.
What time is best to see northern lights in Spring Grove?
The best time to see aurora in Spring Grove is typically between 10 PM and 2 AM local time, when skies are darkest. Aurora can appear any time after astronomical twilight, but peak activity usually occurs around local midnight.
Where to watch aurora in Spring Grove?
For the best aurora viewing in Spring Grove, find a location away from city light pollution with a clear view to the north. Dark areas outside the city center, elevated viewpoints, and spots near water are ideal. Check cloud cover before heading out.
What Kp index is needed to see aurora in Spring Grove?
Spring Grove is at 42.4°N latitude and typically requires a Kp index of 7–9 for visible aurora. Higher Kp values mean stronger geomagnetic storms and better aurora visibility, even at lower latitudes.
Is Spring Grove, United States a good place to see northern lights?
Spring Grove can see aurora during strong geomagnetic storms. Located at 42.4°N, aurora is visible when Kp index reaches 7–9 or higher.

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