Anderson, Indiana 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
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NWS Forecast for Anderson IN
National Weather Service Forecast for:
Anderson IN
Issued by: National Weather Service Indianapolis, IN |
Updated: 6:15 pm EDT Mar 30, 2025 |
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Tonight
 Severe T-Storms then Scattered T-storms
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Monday
 Isolated Showers
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Monday Night
 Decreasing Clouds
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Tuesday
 Mostly Sunny
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Tuesday Night
 Mostly Cloudy then Slight Chance Rain
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Wednesday
 Rain
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Wednesday Night
 Rain
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Thursday
 Rain Likely
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Thursday Night
 Rain Likely
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Lo 41 °F |
Hi 44 °F |
Lo 30 °F |
Hi 54 °F |
Lo 46 °F |
Hi 74 °F |
Lo 57 °F |
Hi 66 °F |
Lo 48 °F |
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Hydrologic Outlook
Hazardous Weather Outlook
Tornado Watch
Tonight
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Showers and thunderstorms before 2am, then isolated showers between 2am and 5am. Some of the storms could be severe. Low around 41. South southwest wind 11 to 17 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible. |
Monday
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Isolated showers after 8am. Mostly cloudy, with a steady temperature around 44. North northwest wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%. |
Monday Night
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Mostly cloudy, then gradually becoming mostly clear, with a low around 30. North wind 6 to 10 mph, with gusts as high as 18 mph. |
Tuesday
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Mostly sunny, with a high near 54. East wind around 7 mph. |
Tuesday Night
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A 20 percent chance of rain after 2am. Mostly cloudy, with a low around 46. East southeast wind 8 to 13 mph, with gusts as high as 24 mph. |
Wednesday
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Rain, with thunderstorms also possible after 11am. High near 74. South wind 16 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible. |
Wednesday Night
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Rain and possibly a thunderstorm before 2am, then rain likely. Low around 57. Southwest wind 13 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. |
Thursday
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Rain likely, mainly after 2pm. Mostly cloudy, with a high near 66. Southwest wind 7 to 9 mph. Chance of precipitation is 60%. |
Thursday Night
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Rain likely, mainly before 2am. Mostly cloudy, with a low around 48. North northeast wind around 6 mph. Chance of precipitation is 60%. |
Friday
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A chance of rain before 8am, then a slight chance of rain after 2pm. Mostly cloudy, with a high near 62. North northeast wind 6 to 8 mph. Chance of precipitation is 30%. |
Friday Night
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Rain and thunderstorms likely. Mostly cloudy, with a low around 43. Chance of precipitation is 60%. |
Saturday
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Rain likely. Mostly cloudy, with a high near 57. Chance of precipitation is 60%. |
Saturday Night
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A 30 percent chance of rain. Mostly cloudy, with a low around 40. |
Sunday
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A 20 percent chance of rain. Partly sunny, with a high near 52. |
Forecast from NOAA-NWS
for Anderson IN.
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Weather Forecast Discussion
333
FXUS63 KLOT 302054
AFDLOT
Area Forecast Discussion
National Weather Service Chicago/Romeoville, IL
354 PM CDT Sun Mar 30 2025
.KEY MESSAGES...
- A period of below average temperatures is expected Monday and
Tuesday before another storm system (with a threat for severe
weather) arrives on Wednesday.
&&
.DISCUSSION...
Issued at 354 PM CDT Sun Mar 30 2025
Thunderstorms have cleared much of the CWA as of 4pm, with some
lingering lightning strikes possible in showers east of I-57
over the next couple hours as the cold front sweeps eastward.
Southwest winds will veer northwest while gusting to 30 mph
tonight as much colder air arrives.
As a deformation axis associated with the passing mid-level
wave brushes far northern Illinois tonight, light rain should
mix with and possibly change over to non-accumulating snow for a
few hours before ending by around sunrise Monday.
After a chilly start to the work week temperatures will
gradually moderate toward midweek when multiple rounds of
thunderstorms are possible late Tuesday night through
Wednesday, some of which could be severe.
Another low pressure system is forecast to lift across the
Upper Midwest toward midweek which will bring yet another period
of inclement weather to the local area. Guidance has trended
more consistently earlier with the onset of showers and
thunderstorms, with strong to possibly severe thunderstorms
moving into the area as early as the pre-dawn hours early
Wednesday morning (potentially in a weakening phase) near and
west of I-39. This coincides with where the Storm Prediction
Center introduced a Level 2 of 5 severe weather threat on Day 3.
Additional waves of showers and storms are possible through the
day on Wednesday. Depending on the timing of storms exiting in
the morning there is a window for another round of strong to
severe storms in the afternoon and early evening. Similar to
today`s (Sunday) setup, given the conditional nature of the
severe threat, expect updates over the coming days to the
forecast.
Uncertainty increases late week into the weekend when another
system is forecast to move across the broader region, though
differences in its placement remain. For now NBM rain chances
seem appropriate (highest south of I-80) with temperatures
generally in the 50s to lower 60s.
Petr/Kluber
&&
.AVIATION /18Z TAFS THROUGH 00Z TUESDAY/...
Issued at 1238 PM CDT Sun Mar 30 2025
Key Aviation Messages for the current TAF period:
- Scattered storms are expected through 21Z, some of which may
become severe
- Gusty southwest winds through the TAF period, before a lake
breeze arrives Monday afternoon for northeast winds
- MVFR cigs through Monday morning
- Brief showers that may have some snow mixed in around 06Z
close to the Wisconsin/Illinois stateline
Cloud cover has broken up for a brief VFR window through
18-1830Z. However, the clearer skies to the south which has
allowed for destabilization in southern Illinois with storms
starting to develop. TAFs were issued with prevailing -SHRA at
the start, but there may be a delay for when showers are
specifically at terminals. No changes were made to the TEMPO for
Chicago terminals with 19Z to 21Z being the main window for
stronger scattered storms to pass over terminals, some of which
may be severe. For RFD, however, is expected to have lower
instability dropping the probability for thunder below 30
percent. Therefore, with decreased confidence in having thunder,
it was kept out of the TAFs and will be handled tactically if it
does materialize. As storms pass over terminals, expected lower
cigs near IFR levels, lower vis from heavier rainfall, and
strong wind gusts.
As the front moves through, other than some lingering showers
trailing behind, drier conditions are expected after 21Z, but
the MVFR cigs are expected to remain through the evening. There
is a slim chance for some lowering to IFR overnight, but not
generally expected.
The surface low driving today`s storms will continue to move
east-northeast through the night. Moisture will wrap around the
low and temperatures will drop. There is a brief window for
showers, but confidence was for terminals closer to the
Wisconsin stateline. As temperatures drop, there is a chance for
some snow to mix in for a brief window of -RASN.
Lastly, winds are expected to be out of the southwest through
most TAF periods. Gusts will slowly diminish through this
evening, but gusts around 20 knots are certainly possible
through Monday early afternoon. However, a lake breeze is
expected to develop in the mid afternoon. Later TAF packages
will likely fine tuned the timing for clearing to VFR as well as
the flip to northeast winds for Chicago terminals.
DK
&&
.LOT WATCHES/WARNINGS/ADVISORIES...
IL...None.
IN...None.
LM...Small Craft Advisory until 4 AM CDT Tuesday for the IL and IN
nearshore waters.
&&
$$
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