
NWS St. Louis Announces Changes To May 16, 2025 Tornado Damage Assessment
After a year-long review of new ground survey data and aerial imagery, NWS St. Louis made several adjustments to the May 16, 2025 tornado damage assessment. Read More >
Hazardous Weather Conditions
Current conditions at
Effingham, Effingham County Memorial Airport (K1H2)
Lat: 39.07°NLon: 88.53°WElev: 587ft.
Overcast
76°F
24°C
| Humidity | 77% |
| Wind Speed | NE 7 mph |
| Barometer | 29.96 in |
| Dewpoint | 68°F (20°C) |
| Visibility | 10.00 mi |
| Heat Index | 77°F (25°C) |
| Last update | 26 May 6:35 pm CDT |
Extended Forecast for
Brownstown IL
Tonight
Low: 63 °F
Scattered
T-storms then
Showers
LikelyWednesday
High: 79 °F
Chance
Showers then
Chance
T-stormsWednesday Night

Low: 61 °F
Increasing
CloudsThursday

High: 82 °F
Mostly Sunny
Thursday Night

Low: 60 °F
Mostly Cloudy
Friday

High: 77 °F
Partly Sunny
Friday Night

Low: 59 °F
Partly Cloudy
Saturday

High: 79 °F
Mostly Sunny
Saturday Night

Low: 59 °F
Mostly Clear
Detailed Forecast
Tonight
Showers and thunderstorms likely, mainly before 3am, then showers likely and possibly a thunderstorm after 4am. Increasing clouds, with a low around 63. East wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%.
Wednesday
A 50 percent chance of showers and thunderstorms, mainly before 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 79. Calm wind becoming north 5 to 7 mph in the afternoon.
Wednesday Night
Increasing clouds, with a low around 61. Northeast wind around 6 mph.
Thursday
Mostly sunny, with a high near 82. Northeast wind 6 to 9 mph.
Thursday Night
Mostly cloudy, with a low around 60. East wind around 7 mph.
Friday
Partly sunny, with a high near 77.
Friday Night
Partly cloudy, with a low around 59.
Saturday
Mostly sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 59.
Sunday
Mostly sunny, with a high near 78.
Sunday Night
Partly cloudy, with a low around 57.
Monday
Mostly sunny, with a high near 78.
Monday Night
Mostly clear, with a low around 56.
Tuesday
Sunny, with a high near 78.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Brownstown IL
39°N 88.96°W (Elev. 558 ft)
39°N 88.96°W (Elev. 558 ft)
4:51 pm CDT May 26, 2026
6pm CDT May 26, 2026-6pm CDT Jun 2, 2026



